SimPowerSystems™ Release
Notes
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SimPowerSystems™ Release Notes
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Summary by Version ............................... 1
Contents
Version 5.2.1 (R2010a) SimPowerSystems Software
Version 5.2 (R2009b) SimPowerSystems Software
Version 5.1 (R2009a) SimPowerSystems Software
Version 5.0 (R2008b) SimPowerSystems Software
Version 4.6 (R2008a) SimPowerSystems Software
Version 4.5 (R2007b) SimPowerSystems Software
Version 4.4 (R2007a) SimPowerSystems Software
Version 4.3 (R2006b) SimPowerSystems Software
Version 4.2 (R2006a) SimPowerSystems Software
Version 4.1.1 (R14SP3) SimPowerSystems Software
... 6
..... 7
..... 9
..... 13
..... 15
..... 19
..... 23
..... 25
..... 27
... 29
Version 4.1 (R14SP2+) SimPowerSystems Software
Version 4.0.1 (R14SP2) SimPowerSystems Software
Version 4.0 (R14SP1) SimPowerSystems Software
Version 3.1 (R14) SimPowerSystems Software
Version 3.0 (R13SP1) SimPowerSystems Software
........ 36
... 30
... 33
.... 34
.... 38
iii
Compatibility Summary for SimPowerSystems
Software
........................................ 41
iv Contents
SummarybyVersion
This table provides quick access to what’s new in each version. For
clarification, see “Using Release Notes” on page 2 .
SimPowerSystems™ Release Notes
Version
(Release)
Latest Versi
V5.2.1 (R201
V5.2 (R2009b)
V5.1 (R2009a)
V5.0 (R2
V4.6 (R2008a)
V4.5 (R2007b)
V4.4 (
V4.3 (R2006b)
008b)
R2007a)
New Features
and Changes
on
Yes
0a)
Details
Yes
Details
Yes
Details
Yes
Details
Yes
Details
Yes
Detai
Yes
Details
Yes
Details
Version
Compatibilit
Consideratio
No Bug Reports
Yes
Summary
Yes
Summary
No Bug Reports
Yes
Summary
Yes
ls
Summa
Yes
Summary
No Bug Reports
ry
y
ns
Fixed Bugs
and Known
Problems
Includes fix
Bug Reports
Includes fixes
Bug Repor
Includes
Includes fixes
Bug Reports
Includes fixes
Bug Re
Inclu
Bug Reports
Includes fixes
Includes fixes
es
ts
fixes
ports
des fixes
Related
Documentation
at Web Site
Printable R elease
Notes: PDF
Current product
documentation
No
No
No
No
No
No
No
V4.2 (R2006a)
V4.1.1 (R14SP3)
4.1 (R14SP2+)
V
Yes
ails
Det
No No Bug Reports
Yes
Details
No Bug
Yes
Summary
Reports
ludes fixes
Inc
Includes fixes
Bug Reports
Includes fixes
No
No
No
1
SimPowerSystems™ Release Notes
Version
(Release)
V4.0.1 (R14SP2)
V4.0 (R14SP1)
V3.1 (R14)
V3.0 (R13SP1)
New Features
and Changes
No No Bug Reports
Yes
Details
Yes
Details
Yes
Details
Version
Compatibility
Considerations
No
No
Yes
Summary
Fixed Bugs
and Known
Problems
Includes fixes
Fixed bugs
Fixed bugs
Fixed bugs V3.0 product
Related
Documentation
at Web Site
No
No
No
documentation
Using Release Notes
Use release notes when upgrading to a newer version to learn about:
• New features
• Changes
• Potential impact on your existing files and practices
Review the release notes for other MathWorks™ products required for this
product (for example, MATLAB
bugs, or compatibility considerations in other products impact you.
®
or Simulink®). Determine if enhancements,
If you are upgrading from a software version other than the m ost recent one,
review the current release notes and all interim versions. For example, when
you upg rade from V1.0 to V1.2, review the release notes for V1.1 and V1.2.
What Is in the Release Notes
New Features and Changes
• New functionality
• Changes to existing functionality
2
SummarybyVersion
Version Compatibility Con si derations
When a new feature or change introduces a reported incompatibility between
versions, the Compatibility Considerations subsection explains the
impact.
Compatibility issues reported after the product release appear under Bug
Reports at The MathWorks™ Web site. Bug fixes can sometimes result
in incompatibilities, so review the fixed bugs in Bug Reports for any
compatibility impact.
Fixed Bugs and Known Problems
The MathWorks offers a user-searchable Bug Reports database so you can
view Bug Reports. The development team updates this database at release
time and as more information becomes available. Bug Reports include
provisions for any known workarounds or file replacem ents. Information is
available for bugs existing in or fixed in Release 14SP2 or later. Information
is not avail able for all bugs in earlier releases.
Access Bug Reports using y our MathWorks Account.
Undocumented Extras Library Blocks
All SimPowerSystems™ blocks have block mask descriptions and have been
tested and validated. However, many blocks in the Extras library do not have
block reference pages in the product documentation.
The Extras library blocks without block reference pages are listed below.
The blocks shown in bold have corresponding continuous blocks that are
documented. The rest of the blocks are undocumented.
Active & Reactive Power (Phasor Type)
Bistable
Discrete Active & Reactive Power
Discrete Bistable
Discrete Butterworth Filter
3
SimPowerSystems™ Release Notes
Discrete Edge D etector
Discrete 1st-order D is crete Filter
Discrete Fourier
Discrete Gamma Measurement
Discrete Lead-Lag
Discrete Mean Value
Discrete Monostable
Discrete On/Off Delay
Discrete 1-phase PLL
Discrete PI Controller
Discrete PID Controller
Discrete PLL-Driven Fundamental Value
Discrete PWM Generator
Discrete Rate Limiter
Discrete RMS Value
Discrete Sample and Hold
Discrete 2nd-order Filter
Discrete 2nd-order V a ria ble-Tu n ed Filter
Discrete Synchronized 6-Pulse Generator
Discrete Synchronized 12-Pulse Generator
Discrete 3-phase PLL
Discrete 3-phase PLL-Driven Positive-Sequence Active & Reactive Power
Discrete 3-phase PLL-Driven Positive-Sequence Fundamental Value
Discrete 3-phase Positive-Sequence Active & Reactive Power
Discrete 3-phase Positive-Sequence Fundamental Value
Discrete 3-phase Programmable Source
Discrete 3-phase PWM Generator
4
Discrete 3-phase Sequence Analyzer
Discrete 3-phase Total Power
Discrete Total Harmonic Distortion
Discrete 12-Pulse HVDC Control
Discrete Variable Frequency Mean Value
Discrete Variable Transport Delay
Discrete Virtual PLL
dq0-based Active & Reactive Power
Edge Detector
FFT
1st-order Filter
Monostable
On/Off Delay
SummarybyVersion
1-phase PLL
Sample & Hold
2nd-order Filter
Sequence Analyzer (Phasor Type)
3-phase Active & Reactive Power (Phasor Type)
3-phase Instantaneous Active & Reactive Power
3-phase PLL
5
SimPowerSystems™ Release Notes
Version 5.2.1 (R2010a) SimPowerSystems Software
This table summarizes what’s new in Version 5.2.1 (R2010a):
New Features and
Changes
Yes
Details below
Version
Compatibility
Considerations
No Bug Reports
New features and changes introduced in this version are described here:
Fixed Bugs an d
Known Problems
Includes fixes
Related
Documentation at
Web Site
Printable Release
Notes: PDF
Current product
documentation
Permanent Magnet Model Available in DC Machine
Block
The DC Machine block now lets you mode l a permanent magnet DC machine,
parameterized either by torque (torque per current constant) or by back-emf
(voltage per speed constant). A new parameter, Field type,allowsyouto
select between the wound-field and the permanent magnet DC machine. For
more information, see the block reference page.
6
Version 5.2 (R2009b) SimPowerSystems™ Software
Version 5.2 (R2009b) SimPowerSystems Software
This table summarizes what’s new in Version 5.2 (R2009b):
New Features and
Changes
Yes
Details below
Version
Compatibility
Considerations
Yes—Details labeled
as Compatibility
Considerations
within descriptions
of new features and
changes, below. See
also Summary.
New features and changes introduced in this version are
• “Enhanced
• “Changes to the Fuel Cell Stack Block ” on page 7
• “New SimPowerSystems Demos” on page 8
power_cableparam Function” on page 7
Fixed Bugs an d
Known Problems
Bug Reports
Includes fixes
Related
Documentation at
Web Site
No
Enhanced power_cableparam Function
The power_cableparam function, introduced in Version 5.1 (R2009a) as part
of the Computation of R L and C Cable Parameters (
is now available as a standalone command-line function with associated
graphical user interface. It l ets you compute RLC parameters of radial copper
cables with single screen, based on conductor and insulator characteristics.
For more information, see the
power_cableparam reference page.
power_cable)demo,
Changes to the Fuel Cell Stack Block
The Fuel Cell Stack block has been improved to better represent the
cell dynamics. The model parameters and the meaning of some detailed
parameters have changed since the last release, as described in the following
section.
7
SimPowerSystems™ Release Notes
Compatibility Considerations
The Fuel Cell Stack block parameters have been changed in Version 5.2
(R2009b). If you used the (No) User-Defined option for the Preset model
parameter in previous releases and defined particular detailed parameters for
your Fuel Cell Stack block, the software will automatically convert your old
block parameters into new values corresponding to the block changes.
The following table compares the old parameter names to the new ones. It
also prov ides details on how the new values are computed:
Old Parameters New Parameters and Values
Open circuit voltage Voltage at 0A and 1A [V_0(V),
New SimPowerSystems Demos
The following demos have been added in Version 5.2:
V_1(V)]
= [oldvalue, oldvalue*0.95]
Demo Name
Six-Pulse Cycloconverter
(
power_cycloconverter)
Speed Control of a DC Motor Using BJT
H-Bridge
(
power_Hbridge)
Five-Cell Multi-Level Converter
power_fivecells)
(
Multi-Level Modeling for Rapid Prototyping of
Complex Systems
(
power_HEV_MultiFidelity)
8
Description
Illustrates a six-pulse cycloconverter driving
a static load.
Illustrates simulation of an H-bridge used to
generate a chopped voltage and control speed
of a DC motor, in open loop, in both directions.
Illustrates a five-cellmultilevelconverter
driving a static load.
Illustrates how to use different detail level in
model simulation. For more information, see
“Multi-Level Modeling for Rapid Prototyping”.
Version 5.1 (R2009a) SimPowerSystems™ Software
Version 5.1 (R2009a) SimPowerSystems Software
This table summarizes what’s new in Version 5.1 (R2009a):
New Features and
Changes
Yes
Details below
Version
Compatibility
Considerations
Yes—Details labeled
as Compatibility
Considerations
within descriptions
of new features and
changes, below. See
also Summary.
New features and changes introduced in this version are
• “Powergui Tools Are Also Available as Standalone Command-Line
Functions” on page 9
• “Enhancements to the Ideal Switching Algorithm” on page 10
• “Powergui Block No Longer Added Automatically” on page 10
• “Changes to the Battery Block ” on page 10
• “New SimPowerSystems Demos” on page 11
Fixed Bugs an d
Known Problems
Bug Reports
Includes fixes
Related
Documentation at
Web Site
No
PowerguiToolsAreAlsoAvailableasStandalone
Command-Line Functions
The graphical user interface analysis tools, available in the Powergui block,
are now also implemented as standalonecommand-linefunctions. Eachof
these tools can be activated by entering the appropriate command at the
MATLAB prompt. For more information, see the following reference pages:
power_fftscope, power_hysteresis, power_initstates, power_lineparam,
power_loadflow, power_ltiview, power_report, power_steadystate ,
power_zmeter.
9
SimPowerSystems™ Release Notes
Enhancements to
The Display circ
Powergui block p
of the model in t
is visible only
more informat
uit differential equations option, available in the
arameters dialog box, lets you display differential equations
he command window when the simulation starts. This option
if Enable use of ideal switching devices is selected. For
ion, see “Using the Ideal Switching Device Method”.
Powergui Blo
The Powergui
simulation.
see “Using t
block is no longer automatically added to your model upon
You n eed to explicitly add it to your model. For more information,
he Powergui Block to Simulate SimPowerSystems Models”.
the Ideal Switching Algorithm
ck No Longer Added Automatically
Compatibility Considerations
If you have
in previou
simulatio
block and
Changes
The Batt
dynamic
parame
the las
an old model without a Powergui block, which used to run
s releases b ecause Powergui was added automatically during
n, you will now get an e rror trying to simulate it. Add a P ow ergui
save the model to avoid the error.
to the Battery Block
ery block has been improved to accurately represent the battery
s during the charge and the discharge processes. The model
ters and the meaning of some detailed parameters have changed since
t release, as described in the following section.
10
Compatibility Considerations
The Ba
you us
prev
bloc
new v
The
als
ttery block parameters have been changed in Version 5.1 (R2009a). If
ed the (No) User-Defined option for the Battery Type parameter in
ious releases and defined particular detailed parameters for your Battery
k, the software will automatically convert your old block parameters into
alues corresponding to the block changes.
following table compares the old parameter names to the new ones. It
o provides details on how the new values are computed:
Version 5.1 (R2009a) SimPowerSystems™ Software
Old Parameters New Parameters and Values
Battery Type, set to
(No) User-Defined
-
BatteryType,setbydefaultto
Nickel-Metal-Hybrid
Maximum Capacity (Ah)
= RatedCapacity*1.05
Full charge voltage (%) Fully charged voltage (v)
=
[oldvalue]/100*NominalVoltage
Nominal D ischarge Current
(% of Rated Capacity)
Capacity (% of Rated Capacity)
@NominalVoltage
Exponential zone Voltage (%)
Exponential zone Capacity
(% of the Rated Capacity)
Nominal Discharge Current (A )
= [oldvalue]/100*RatedCapacity
Capacity (Ah) @ Nominal Voltage
= [oldvalue]/100*RatedCapacity
Exponential zone Voltage (V)
=
[oldvalue]/100*NominalVoltage
Exponential zone Capacity (Ah)
= [oldvalue]/100*RatedCapacity
New SimPowerSystems Demos
The following demos have been added in Version 5.1:
Demo Name
Computation of R L and C Cable Parameters
(
power_cable)
Single-Phase Dynamic Load Block
(
power_1phdynamicload)
Description
Illustrates use of the
power_cableparam demo
function to calculate the R,L, and C parameters
of two 132kV 2-phase cables with screen cables.
Illustrates an example of a single-phase
dynamic load block built with Simulink
blocks. This is the recommended template for
interfacing custom-built S imulink blocks with
SimPowerSystems models.
11
SimPowerSystems™ Release Notes
Zener Diode Regulator
(
power_zener)
Full Wave Rectifier
(
power_FullWaveRectifier)
Multilevel Multiphase Space-Vector PWM
(
power_svpwm_multiPhasesLevel)
Synchronous Generator and Full Scale
Converter (Type 4) Detailed Model
(
power_wind_type_4_det)
Synchronous Generator and Full Scale
Converter (Type 4) Average Model
(
power_wind_type_4_avg)
Presents a model of the zener diode used in a
voltage regulator.
Illustrates use of the Ideal Switching Device
solution method to simulate a full wave
rectifier using ideal diodes.
Illustrates modeling and operation of the
Multilevel Multiphase Space-Vector PWM
and Two-Level Multiphase Space-Vector
PWM blocks. The demo includes a five-level
five-phase inverter feeding a passive load.
Illustrates simulation of a 10 MW wind farm
using a detailed model of a Type 4 wind turbine.
Illustrates simulation of a 10 MW wind farm
using an average model of a Type 4 wind
turbine.
12
Version 5.0 (R2008b) SimPowerSystems™ Software
Version 5.0 (R2008b) SimPowerSystems Software
This table summarizes what’s new in Version 5.0 (R2008b):
New Features and
Changes
Yes
Details below
Version
Compatibility
Considerations
No Bug Reports
New features and changes introduced in this version are
• “New Ideal Switching Algorithm” on page 13
• “Changes to the Universal Bridge Block ” on page 13
• “New SimPowerSystems Demos” on page 13
Fixed Bugs an d
Known Problems
Includes fixes
Related
Documentation at
Web Site
No
New Ideal Switching Algorithm
New Ideal Switching algorithm, available in the Powergui block, enables
faster and more accurate simulation of power e le ctro nic devices. For more
information, see “Using the Ideal Switching Device Method”.
Changes to the Universal Bridge Block
The Universal Bridge block has two new options for modeling voltage-sourced
converters (VSC):
• Switching-function based VSC
• Average-model based VSC
New SimPowerSystems Demos
The following demos have been added in Version 5.0:
13
SimPowerSystems™ Release Notes
Demo Name
Switching an Inductive Circuit Using a
Breaker With no Snubber
(
power_breaker)
Fuel Cell Vehicle (FCV) Power Train
power_FCV_powertrain)
(
Description
Illustrates the Ideal Switching device solution
method of the Powergui block.
Demonstration of a Fuel Cell Vehicle (FCV)
power train using SimPowerSystems and
SimDriveline™. The FCV power train is of
the series type. This FCV is pro pe lled by one
electric motor powered by a fuel cell and a
battery.
14
Version 4.6 (R2008a) SimPowerSystems™ Software
Version 4.6 (R2008a) SimPowerSystems Software
This table summarizes what’s new in Version 4.6 (R2008a):
New Features and
Changes
Yes
Details below
Version
Compatibility
Considerations
Yes—Details labeled
as Compatibility
Considerations
within descriptions
of new features and
changes, below. See
also Summary.
New features and changes introduced in this version are
• “New Fuel Cell Stack Block” on page 15
• “Initial Conditions Can Be Specified for the Permanent Magnet
Synchronous Machine Block ” on page 16
• “Multiple Discretization Rates within a Model Now Available” on page 16
• “New SimPowerSystems Demos” on page 17
Fixed Bugs an d
Known Problems
Bug Reports
Includes fixes
Related
Documentation at
Web Site
No
New Fuel Cell Stack Block
A new block, Fuel Cell Stack, has been added to the Extra Sources sublibrary
of the Electric Drives library. It implements a generic model parameterized to
represent most popular types of fuel cell stacks fed with hydrogen and air.
The6kW45VdcFuelCellStackdemo(
theFuelCellStackblocktomodelaProtonExchangeMembrane(PEM)Fuel
Cell Stack feeding an average value 100Vdc DC/DC converter.
power_fuel_cell) shows how to use
The Battery block from the Electrical Sources library is now included in the
Extra Sources sublibrary of the Electric Drives library as well.
15
SimPowerSystems™ Release Notes
Initial Conditions Can Be Specified for the Permanent
Magnet Synchronous Machine Block
The following enhancements have been implemented for the Permanent
Magnet Synchronous Machine block:
• A new parameter,
mechanical speed (rad/s), mechanical angle Θ (degrees) and instantaneous
stator current (A).
• A new drop-down list lets you select the machine constant that you wish to
specify for block parameterization: the flux linkage, the voltage constant,
or the torque constant. Once you select a constant, you can enter its value
in the appropriate parameter field, while the other two parameters become
inaccessible and are only shown for information.
• The dialog box has been rearranged into three tabs, Configuration,
Parameters,andAdvanced, to improve usability.
Initial conditions, allows you to specify the initial
Multiple Discretization Rates within a Model Now
Available
For certain blocks, y ou can specify a different sample time than the one
specified by the Powergui block. This allows you to discretize different parts of
a model at different rates in a fixed time step simulation. For example, if one
block n eeds to run at a smaller time step (t1) than the rest of the simulation
(t2), you can speed up simulation of the whole model by specifying a different
timestepforthisblock,aslongast2 = n * t1 (where n is an integer).
The following is a list of blocks that currently can be discretized at a different
rate:
16
• Asyhchronous Machine
• DC Machine
• Permanent Magnet Synchronous Machine
• Simplified Synchronous Machine
• Single Phase Asynchronous Machine
• Stepper Motor
• Switched Reluctance Motor
Version 4.6 (R2008a) SimPowerSystems™ Software
• Synchronous Machine
Dialog boxes for most of these blocks have also been rearranged into three
tabs, Configuration, Parameters,andAdvanced, to improve usability.
Compatibility Considerations
The D C Machine block can be discretized now. It is recommended that you
use it instead of the Discrete DC Machine block, which will be deprecated
in the future.
New SimPowerSystems Demos
The following demos have been added in Version 4.6:
Demo Name
6kW45VdcFuelCellStack
power_fuel_cell)
(
Solid-Oxide Fuel Cell Connected to
Three-Phase Electrical Power System
(
power_SOFC)
Mechanical Coupling of Synchronous
Generator with Exciter System
(
power_SM_exciter)
Three-Phase Core-Type Transformer
(
power_Transfo3phCoreType)
Description
Demonstration of the Proton Exchange
Membrane (PEM) Fuel Cell Stack model
feeding an average value 100Vdc DC/DC
converter. The nominal Fuel Cell Stack voltage
is 45Vdc and the nominal power is 6kW.
This demo il lustrates a model of a solid oxide
fuel cell (SOFC). The system consists of a
SOFC, which is connected to a three-phase
infinite bus through an IGBT inverter.
In large alternators, the excitation system
is provided by a small synchronous machine
connected on the same shaft as the main
synchronous machine. This demo illustrates
interconnecting two machines on the same
shaft by use of speed input.
This demo illu strates use of the Three-Phase
Transformer Inductance Matrix Type block
to model a three-phase core-type saturable
transformer. It also demonstrates that using
three single-phase transformers to simulate a
Yg/Yg core-type transformer is not acceptable.
17
SimPowerSystems™ Release Notes
Three-Phase Matrix Converter
(
power_three_phase_matrix_converter)
Three-Phase Active Harmonic Filter
(
power_active_filter)
This demo illustrates a three-phase matrix
converter driving a static load. Indirect
space-vector modulation allows direct control
of input current and output voltage and hence
allows the power factor of the source to be
controlled. As a result, the demo outputs the
unity power factor at the source.
This demo illustrates the use of a shunt
active harmonic filter (AHF) to minimize the
harmonic content propagated to the source
from a nonlinear load.
18
Version 4.5 (R2007b) SimPowerSystems™ Software
Version 4.5 (R2007b) SimPowerSystems Software
This table summarizes what’s new in Version 4.5 (R2007b):
New Features and
Changes
Yes
Details below
Version
Compatibility
Considerations
Yes—Details labeled
as Compatibility
Considerations
within descriptions
of new features and
changes, below. See
also Summary.
New features and changes introduced in this version are
• “New Battery Block” on page 19
• “New Stepper Motor Block” on page 20
• “Three New Transformer Blocks” on page 20
• “New Measurement Option Av ailable for the PI Section Line Block ” on
page 21
• “New SimPowerSystems Demos” on page 21
• “Renamed
psbhysteresis Command” on page 22
Fixed Bugs an d
Known Problems
Bug Reports
Includes fixes
Related
Documentation at
Web Site
No
New Battery Block
A new block, Battery, has been added to the Electrical Sources library. It
implements a generic battery that models most popular battery ty pe s, such
as Nickel-Metal-Hybride, Lead-Acid, Lithium-Ion, and Nickel-Cadmium.
User-Defined Battery type allows you to modify detailed parameters to
represent any particu l ar discharge characteristics.
The Hybrid Electric Vehicle (HEV) Power Train demo
(
power_HEV_powertrain), which was introduced in Version 4.4
(R2007a) and shows a multi-domain simulation of a HEV power train based
on SimPowerSystems and SimDriveline blocks, has been modified to use the
19
SimPowerSystems™ Release Notes
Battery block. It is now called Hybrid Electric Vehicle (HEV) Power Train
Using Battery Model.
New Stepper Motor Block
A new block, Stepper Motor, has been added to the Machines library.
Depending on the motor configuration specified by the Motor type parameter,
this block models:
• A two- or four-phase permanent magnet or hybrid stepper motor
• A three-, four-, or five-phase variable reluctance stepper m otor
Three New Transformer Blocks
Three n ew transformer blocks have been added to the Elements library:
• Grounding Transformer implements a transformer that is used to provide a
neutral in a three-phase, three-wire system. The transformer consists of
three two-winding transformers connected in a zigzag. The nominal voltage
of each of the six windings is Vn/3.
20
• Three-Phase Transformer Inductance Matrix Type (Two Windings)
represents inductive coupling between windings located on different phases
of a three-limb or a five-limb c ore. It also allows m o deling of a three-phase
transformer built with three single-phase units (no coupling between
phases). The transformer R L parameters are obtained from no-load
excitation tests and short-circuit tests in p ositive- and zero-sequence. When
core type is specified as Three-limb or five-limb core,thetransformer
is modeled b y 9 coupled windings; otherwise, it is modeled by 3 sets of 2
coupled windings (Z0=Z1).
• Three-Phase Transformer Inductance Matrix T ype (Three Windings)
represents coupling between windings located on different phases of a
three-limb or a five-limb core. It also allows modeling of a three-phase
transformer built with three single-phase units (no coupling between
phases). The transformer R L parameters are obtained from no-load
excitation tests and short-circuit tests in p ositive- and zero-sequence. When
core type is specified as Three-limb or five-limb core,thetransformer
is modeled b y 9 coupled windings; otherwise, it is modeled by 3 sets of 3
coupled windings (Z0=Z1).
Version 4.5 (R2007b) SimPowerSystems™ Software
New Measurement Option Available for the PI
Section Line Block
A new measurement option, All pi-secti on voltages and currents,is
available for the PI Section Line block. It allows you to measure voltages and
currents at the start and end of each pi-section.
New SimPowerSystems Demos
The following demos have been added in Version 4.5:
Demo Name
Ni-MH Battery Model
(
power_battery)
Stepper Motor Drive
(
power_steppermotor)
D-STATCOM (Average Model)
(
power_dstatcom_avg)
Description
Demonstration of the battery model during
charge and discharge process. The demo
models a 200 V, 6.5 Ah Ni-MH battery.
Demonstration of a hybrid stepper motor drive.
The parameters are those of a small stepper
motor (size 23).
In the average model of a Distribution
STATCOM, the IGB T Voltage-Sourced
Converters (VSC) are repres ented by
equivalent voltage sources generating the
AC voltage averaged over one cycle of the
switching frequency. This model does not
represent harmonics, but the dynamics
resulting from the control system and power
system interaction are preserved. This model
allows using much larger time steps (typically
40-50 microseconds), thus allowing simulations
of several seconds.
21
SimPowerSystems™ Release Notes
D-STATCOM (Detailed Model)
(
power_dstatcom_pwm)
UPFC (Detailed Model)
(
power_upfc_gto48p)
Renamed psbhysteresis Command
In Version 4.5 (R2007b), power_hysteresis is the new name for the old
psbhysteresis command. You use it exactly the same way you would use
the
psbhysteresis command.
Compati
Currently, if you issue the psbhysteresis command, it will automatically
redirect to its new name,
that you update your scripts and use the new command name going forward.
The detailed model of a Distribution STATC OM
includes detailed representation of power
electronic IGBT converters. In order to achieve
an acceptable accuracy with the 1680 Hz
switching frequency used in this demo, the
model must be dis cretized at a relatively small
time step (5 microseconds). This model is well
suited for observing harmonics and control
system dynamic performance over relatively
short periods of times (typically hundreds of
milliseconds to one second).
Detailed model of a 48-pulse, GTO-based
Unified Power Flow Controller (500 kV, 100
MVA).
bility Considerations
power_hysteresis. However, it is recommended
22
Version 4.4 (R2007a) SimPowerSystems™ Software
Version 4.4 (R2007a) SimPowerSystems Software
This table summarizes what’s new in Version 4.4 (R2007a):
New Features and
Changes
Yes
Details below
Version
Compatibility
Considerations
Yes—Details labeled
as Compatibility
Considerations
within descriptions
of new features and
changes, below. See
also Summary.
New features and changes introduced in this version are described here:
Fixed Bugs an d
Known Problems
Bug Reports
Includes fixes
Related
Documentation at
Web Site
No
New Brushless DC Motor Drive Block
A new block, Brushless DC Motor Drive, has been adde d to the Electric
Drives/AC Drives library. It implements a brushless DC motor drive using
a Permanent M agnet Synchronous Motor (PMSM) w ith trapezoidal back
electromotive force (BEMF). It is possible to u se a simplified version of the
drive containing an average-value modeloftheinverterforfastersimulation.
In SimPowerSystems software, the Brushless D C Motor Drive block is
commonly called the
AC7 motor drive.
Automated Conversion of Version 2 Models Is No
Longer Supported
The automated conversion of old models, created with blocks from
SimPowerSystems 2.3 or Power System Blockset™ 2 libraries, is no longer
supported in Version 4.4 (R2007a).
Compatibility Considerations
The psbupdate function is obsolete as of Version 4.4 (R2007a).
23
SimPowerSystems™ Release Notes
New SimPowerSystems Demos
The following demos have been added in Version 4.4:
Demo Name
Hybrid Electri
power_HEV_p
(
Aircraft
Distrib
(
power_
Electrical Power Generation and
ution
aircraft_distribution
cVehicle(HEV)PowerTrain
owertrain
)
)
Description
Multi-domain s
based on SimPo
blocks. The HE
series-paral
the Toyota Pr
of m otiv e pow
an internal
to increase
air polluti
of the elect
high avail
advantage
(high dyna
at high sp
This circ
Electri
System.
and depe
lel type, such as the one found in
iuscar. ThisHEVhastwokinds
er sources, an electric motor and
combustion engine (ICE), in order
the drive train efficiency and reduce
on. It combines the advantages
ric motor drive (no pollution and
able power at low speed) and the
s of an internal combustion engine
mic perform ances and low pollution
eeds).
uit illustrates a generic aircraft
cal Power Generation & Distribution
The AC power frequency is variable
nds o f the engine speed.
imulation of a HEV power train
werSystems and SimDriveline
V power train is of the
24
Version 4.3 (R2006b) SimPowerSystems™ Software
Version 4.3 (R2006b) SimPowerSystems Software
This table summarizes what’s new in Version 4.3 (R2006b):
New Features and
Changes
Yes
Details below
Version
Compatibility
Considerations
No Bug Reports
New features and changes introduced in this version are described here:
Fixed Bugs an d
Known Problems
Includes fixes
Related
Documentation at
Web Site
No
Mechanical Input Parameter Lets You Connect
SimMechanics or SimDriveline Blocks to Electric
Drives by Specifying Motor Speed as Block Input
The AC and DC Electric Drive blocks have a new parameter called
Mechanical input, which lets you specify either the load torque or the motor
speed as block input.
As of V4.3 (R2006b), mechanical input is available for the following blocks:
• Six-Step VSI Induction Motor Drive (AC1)
• Space Vector PWM VSI Induction Motor Drive (AC2)
• Field-Oriented Control Induction Motor Drive (AC3)
• DTC Induction Motor Drive (AC4)
• Self-Controlled Synchronous Motor Drive (AC5)
• PM Synchronous Motor Drive (AC6)
• Two-Quadrant Single-Phase Rectifier DC Drive (DC1)
• Four-Quadrant Single-Phase Rectifier DC Drive (DC2)
• Two-Quadra nt Three-Phase Rectifier DC Drive (DC3)
• Four-Quadrant Three-Phase Rectifier DC Drive (DC4)
• One-Quadrant Chopper DC Drive (DC5)
25
SimPowerSystems™ Release Notes
• Two-Quadrant Chopper DC Drive (DC6)
• Four-Quadrant Chopper DC Drive (DC7)
To switch to the motor speed as mechanical input, open the block dialog box
and set the Mechanical input option in the bottom portion of the dialog box
to
Speed w. Note that if you select the motor speed as mechanical input, the
internal mechanical system is not used and the inertia and viscous friction
parameters are not displayed. You have to include these parameters in the
external mechanical system.
26
Version 4.2 (R2006a) SimPowerSystems™ Software
Version 4.2 (R2006a) SimPowerSystems Software
This table summarizes what’s new in Version 4.2 (R2006a):
New Features and
Changes
Yes
Details below
Version
Compatibility
Considerations
No Bug Reports
New features and changes introduced in this version are described here:
Fixed Bugs an d
Known Problems
Includes fixes
Related
Documentation at
Web Site
No
Average Values of electricdrivelib Blocks
TwomoreACdrivesblocks,AC3andAC5,intheelectricdrivelib library
now have a new parameter that allows you to specify average-value models,
as opposed to detailed models, for the converters. T his parameter was
first introduced for some of the
(R14SP2+).
As of V4.2 (R2006a), average-value models are available for the following
blocks:
• Space Vector PWM VSI Induction Motor Drive (AC2)
• Field-Oriented Control Induction Motor Drive (AC3)
• Self-Controlled Synchronous Motor Drive (AC5)
electricdrivelib library blocks in V4.1
• PM Synchronous Motor Drive (AC6)
• Two-Quadrant Single-Phase Rectifier DC Drive (DC1)
• Four-Quadrant Single-Phase Rectifier DC Drive (DC2)
• Two-Quadra nt Three-Phase Rectifier DC Drive (DC3)
• Four-Quadrant Three-Phase Rectifier DC Drive (DC4)
• One-Quadrant Chopper DC Drive (DC5)
• Two-Quadrant Chopper DC Drive (DC6)
• Four-Quadrant Chopper DC Drive (DC7)
27
SimPowerSystems™ Release Notes
To switch to the average-value representation, open the block dialog box and
set the Model detail level option in the bottom portion of the dialog box
to
Average.
Transformer Blocks with SI Units Are Available
The Transformer blocks now have a parameter named Units,whichallows
you to specify the
be used to automatically convert pu units into SI units, or the reverse.
Open Circuit Option Is Added for the RLC Blocks
The R LC branch blocks how have an extra option under the Branch Type
parameter that allows you to specify an
particularly useful if you want to temporarily get rid of an RLC el ement in
the circuit without deleting the block.
New Demos and Enhancements to Existing Demos
Thefollowingdemoshavebeenadded.
SI units or the pu units. In addition, this parameter can
Open Circuit branch. This is
28
Demo Name
power_tcsc_phasor.mdl
power_tcsc.mdl
power_asm1ph_auxcontrol
power_asm1ph_vectorcontrol
In the Wind Farm DFIG demos of the Distributed Resources library, control
systems have been enhanced.
Description
Thyristor Controlled Series
Capacitor (TCSC) test systems from
Dr. Dragan Jovcic from University
of Aberdeen, U K
The single-phase Asynchronous
Machine block using the
auxiliary windings
Main &
configuration
Version 4.1.1 (R14SP3) SimPowerSystems™ Software
Version 4.1.1 (R14SP3) SimPowerSystems Software
This table summarizes what’s new in Version 4.1.1 (R14SP3):
New Features and
Changes
No No Bug Reports
Version
Compatibility
Considerations
Fixed Bugs an d
Known Problems
Includes fixes
Related
Documentation at
Web Site
No
29
SimPowerSystems™ Release Notes
Version 4.1 (R14SP2+) SimPowerSystems Software
This table summarizes what’s new in Version 4.1 (R14SP2+):
New Features and
Changes
Yes
Details below
Version
Compatibility
Considerations
Yes—Details labeled
as Compatibility
Considerations
within descriptions
of new features and
changes, below. See
also Summary.
New features and changes introduced in this version are described here:
Fixed Bugs an d
Known Problems
Bug Reports
Includes fixes
Related
Documentation at
Web Site
No
New Blocks in the Machines Library of powerlib
The machines library of powerlib contains a model of a Switched Reluctance
Motor that allow you to model three typical configurations of such a
motor. The library also contains a model of a Single-Phase Asynchronous
Machine that can be configured as a split phase, a capacitor-start, or as a
capacitor-start-run motor mode.
Enhancements to Existing Blocks of the Machines
Library
The core saturation can now be specified for the Asynchronous Machine
block when the block is used in a phasor simulation. The saturation model
of the Asynchronous Machine is based on the fundamental component of the
current and does not include the third harmonic. The saturation parameter is
available only when the simulation is in phasor mode. When the Powergui
block is set to continuous or discrete mode, the parameter is disabled in the
mask of the block.
30
Version 4.1 (R14SP2+) SimPowerSystems™ Software
The Perm anent Magnet Synchronous Machine block allowsyoutospecifya
trapezoidal flux distribution as an alternative to the sinusoidal flux option
of the previous version of the block.
Branch Type Parameter of the RLC Branch Blocks
The Series RLC Branch block, Parallel RLC Branch block, Three-Phase
Series RLC Branch block, and Three-Phase Parallel RLC Branch block now
have a new parameter that allows you to directly specify the elements that
are present in the branch: the R, L, C, RL, LC, RC, and RLC configurations
can be specified. It is no longer required to specify an Inf value for the
Capacitance in a Series RLC Branch block to get rid of the capacitor device
in the branch or to specify 0 value of resistance to get rid of the resistor of a
Parallel RLC Branch block.
Average Values of electricdrivelib Blocks
The seven DC drives blocks, and the AC2 and AC6 AC drives of the
electricdrivelib library now have a new param eter that allows you
to specify average value models, as opposed to detailed models, for the
converters.
To switch to the average-value representation, open the block dialog box and
set the Model detail level option in the bottom portion of the dialog box
to
Average.
Obsolete Blocks
The Discrete System block and the Machine Measurement Demux block are
no longer supported in V4.1 (R14SP2+).
Compatibility Considerations
The table below indicates blocks that are obsolete as of the current version,
and lists blocks that you can use as replacement for the obsolete blocks.
31
SimPowerSystems™ Release Notes
Obsolete Block Removed from Version
Discrete System
Machine Measurement
4.1
4.1
Demux
Replacement
Powergui
Bus Selector
32
Version 4.0.1 (R14SP2) SimPowerSystems™ Software
Version 4.0.1 (R14SP2) SimPowerSystems Software
This table summarizes what’s new in Version 4.0.1 (R14SP2):
New Features and
Changes
No No Bug Reports
Version
Compatibility
Considerations
Fixed Bugs an d
Known Problems
Includes fixes
Related
Documentation at
Web Site
No
33
SimPowerSystems™ Release Notes
Version 4.0 (R14SP1) SimPowerSystems Software
This table summarizes what’s new in Version 4.0 (R14SP1):
New Features and
Changes
Yes
Details below
Version
Compatibility
Considerations
No
New features and changes introduced in this version are described here:
Fixed Bugs an d
Known Problems
Fixed bugs
Related
Documentation at
Web Site
No
Electric Drives Library
The Electric Drives library is a major new addition to the SimPowerSystems
library. The library is designed for engineers from m any disciplines who
want to incorporate easily and trustfully electric drives in the simulation
of their systems.
This application library has seven typical direct current (DC) drives used in
industries and transportation systems, six alternating current (AC) drives
providing more efficient and ver satile motors from traction to positioning
devices, and shaft and speed reducer models useful for connecting to the
motor a mod e l of load made of Simulink blocks.
The Electric Drives library is accessible in the Simulink Library Browser
under the SimPowerSystems / Application Libraries folder.
34
Note The Simulink Accelerator mode is highly recommended to sim u la te
models from the Electric Drives library.
Flexible AC Transmission Systems (FACTS) Library
The FACTS library provides phasor models of power-electronics based flexible
AC transmission systems such as the Static Synchronous Compensator
(STATCOM), the Static Synchronous Series Compensator (SSSC), the
Static Var Compensator (SVC), and the Unified Power Flow Controller
Version 4.0 (R14SP1) S imPowerSystems™ Software
(UPFC). Detailed and realistic case studies illustrating shunt reactive power
compensation and power conversion are provided with the FACTS library.
The FACTS library is accessible in the Simulink Library B rowser under the
SimPowerSystems / Application Lib rari es folder.
Distributed Resources (DR) Library
The DR library provides phas or models of wind turbines. It includes a model of
a varia bl e pitch wind turbine, a variable speed doubly-fed in duction generator
driven by a wind turbine, and a squirrel-cage induction generator driven by
a variable pitch wind turbine. Case studies illustrate the steady-state and
dynamic performance of wind farms connected to a distribution system.
The DR library is accessible in the Simulink Library Browser under the
SimPowerSystems / Application Lib rari es folder.
35
SimPowerSystems™ Release Notes
Version 3.1 (R14) SimPowerSystems Software
This table summarizes what’s new in Version 3.1 (R14):
New Features and
Changes
Yes
Details below
Version
Compatibility
Considerations
No
New features and changes introduced in this version are described here:
Fixed Bugs an d
Known Problems
Fixed bugs
Related
Documentation at
Web Site
No
Elements Library Enhancements
The following new blocks and enhancements have been added to the Elements
library:
• The Three-Phase Harmonic Filter block implements four types of
three-phase harmonic filters using RLC components.
• The Multi-Windings Transformer block implements a transformer where
the number of windings on the primary side and on the secondary side can
be specified. Tap windings can also be specified.
• The Parallel RLC Branch block, Series RLC Branch block, Parallel RLC
Load block, and Series RLC Load block allow the initial values of capacitor
voltage and inductor current to be set through the block dialog box.
Machines Library Enhancements
The following enhancements have been made to the Asynchronous Machine,
the DC Machine, the Permanent M agnet Synchronous Machine, and the
Synchronous Machine blocks:
36
• The Simulink signal going out from the measurement output is re-organized
as a bus signal so you can use the Bus Selector block from Simulink library
to select the machine measurements. The Machine Measurement Demux
block is compatible with this new bus signal so you don’t need to replace it
with a Bus Selector block in your existing models.
Version 3.1 (R14) SimPowerSystems™ Software
• A new parameter named Preset model is added to the mask of the machine
models. It provides a set of pre determined electrical and mechanical
parameters set for various type of machine ratings of power. You select one
of the preset models to load the corresponding electrical and mechanical
parameters in the entries of the dialog box.
• A new parameter named Show detailed parameters is added to the mask of
themachinemodels. Itallowyoutoaccessthedetailedparametersofthe
machine m odels , or to hide them when you are using a preset parameter.
Powergui Enhancements
The Powergui block features a new tool to compute the RLC parameters of
an overhead transmission line from its conductor characteristics and tower
geometry. This new function is also available directly from the command line
by entering
power_lineparam at the MATLAB prompt.
37
SimPowerSystems™ Release Notes
Version 3.0 (R13SP1) SimPowerSystems Software
This table summarizes what’s new in Version 3.0 (R13SP1):
New Features and
Changes
Yes
Details below
Version
Compatibility
Considerations
Yes—Details labeled
as Compatibility
Considerations
within descriptions
of new features and
changes, below. See
also Summary.
New features and changes introduced in this version are described here:
Fixed Bugs an d
Known Problems
Fixed bugs V3.0 product
Related
Documentation at
Web Site
documentation
Terminal Ports and Connection Lines
Version 3.0 introduces the terminal port, specific to the electrical domain of
Physical Modeling and d ifferent from the Simulink input and output ports.
It is represented on blocks by a small white square
electrical connection lines connecting such terminal ports. The electrical
connection lines of the Physical Modeling domain, unlike Simulink signal
lines, are intrinsically nondirectional.
Separating SimPowerSystems and Simulink Lines and Ports
In the previous versions of SimPowerSystems and Power System Blockset™
software, the electrical block ports were modeled by Simulink input and output
ports. The distinction between Simulink ports and electrical terminal ports is
now clearly defined. You cannot connect terminal ports to Simulink input and
output ports. For example, you cannot by mistake connect a Simulink Scope
block directly to the phase terminals of a Synchronous Machine block.
. You can branch the
38
You must also keep Simulink signal lines and SimPowerSystems electrical
connection lines separate. You cannot connect one type of line to the other
by branching.
Version 3.0 (R13SP1) S imPowerSystems™ Software
Blocks That Interface Between Simulink and SimPowerSystems
Domains
In Version 3.0, SimPowerSystems blocks can have only terminal ports or
only Simulink ports, or both types. Blocks such the Synchronous Machine
block and the Thyristor block feature both port types. Such blocks serve as
interfaces between the part of your model connected by Simulink signal lines
and the part connected by electrical connection lines.
Compatibility Considerations
Converting Version 2 Models to Version 3. Version 3.0 provides the
psbupdate command to convert your old Version 2 models to the new block
library and interface of Version 3. See the HTML or PDF forms of the special
documentation for model conversion. If you are viewing these Release Notes
in PDF form, note that the HTML form of the Release Notes provides links to
both forms of the conversion guide.
Keeping Version 2 and Version 3 Blocks Separate. The Version 3
powerlib and Version 2 powerlib2 block libraries form separate, parallel
resources for creating power system models. Th ese two block libraries and
their interfaces are not compatible.
Building and Running Models with the Version 2 Library. For your
convenience, yo u can open and simulate your old Version 2 models in Version
3.0 and obtain the same simulati on results you would get with previous
releases. Y ou can also build new models with the old Version 2 block library,
powerlib2.
You can access the Version 2 block library by entering
command line. It is strongly recommended, however, that you use the
powerlib block library to take the full advantage of Version 3.0.
Note You canno t put Version 2 and V e r sion 3 blocks i n the same m odel file.
powerlib2 at the
39
SimPowerSystems™ Release Notes
Accessing the Version 2 Documentation. For your convenience,
SimPowerSystems documentation for Version 3.0 includes links to the old
documentation of Version 2.3. This documentation is available in PDF format.
If you are viewing these Release Notes in PDF form, note that the HTML form
of the Release Notes provides a link to the old documentation.
Renamed SimPowerSystems Commands
In Version 3.0, the analysis commands of earlier versions have been renamed.
power_analyze
power_analyze is the new name for the old power2sys command. With it, you
can analyze models built with the new block library of Version 3.0.
power_init
power_init is the new name for the old powerinit command. You use it
exactly the same way you would use the
powerinit command.
40
power_statespace
power_statespace is the new name for the old circ2ss command. You use it
exactly the same way you would use the
circ2ss command.
Compatibility Considerations
You can still use the analysis commands of earlier versions with old models.
The
powerinit and circ2ss commands are compatible with either Version 2
or Version 3 models.
You should use the
previous versions of software. If you want to analyze Version 3 models, you
must use the new
power2sys command only for old models built with
power_analyze command.
Compatibility Summary for SimPowerSystems™ Software
Compatibility Summary for SimPowerSystems Software
This table summarizes new features and changes that might cause
incompatibilities when you upgrade from an earlier version, or wh en you
use files on multiple versions. Details are provided with the description of
the new feature or change.
Version (Release) New Features and Changes with
Version Compatib ility Impact
Latest Version
V5.2.1 (R2010a)
V5.2 (R2009b) See the Compatibility
V5.1 (R2009a) See the Compatibility
V5.0 (R2008b)
V4.6 (R2008a) See the Compatibility
None
Considerations subheading
for this new feature or change:
“Changes to the Fuel Cell Stack
Block ” on page 7
Considerations subheading
for each of these new features or
changes:
“Powergui Block N o Longer Added
Automatically” on page 10
“Changes to the Battery Block ” on
page 10
None
Considerations subheading
for this new feature or change:
“Multiple Discretization Rates
within a Model N o w Availab le” on
page 16
41
SimPowerSystems™ Release Notes
Version (Release) New Features and Changes with
V4.5 (R2007b) See the Compatibility
Version Compatib ility Impact
Considerations subheading
for this new feature or change:
“Renamed
psbhysteresis
Command” on page 22
V4.4 (R2007a) See the Compatibility
Considerations subheading
for this new feature or change:
“Automated Convers ion of Ve rsio n 2
Models Is No Longer Supported” on
page 23
V4.3 (R2006b)
V4.2 (R2006a)
V4.1.1 (R14SP3)
None
None
None
V4.1 (R14SP2+) See the Compa t ibility
Considerations subheading
for this new feature or change:
“Obsolete Blocks” on page 31
V4.0.1 (R14SP2)
V4.0 (R14SP1)
V3.1 (R14)
None
None
None
V3.0 (R13SP1) See the Compatib i l ity
Considerations subheading
for each of these new features or
changes:
42
• “Terminal Ports and Connection
Lines” on page 38
• “Renamed SimPowerSystem s
Commands” on page 40
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