Sinexcel PWS1-NA Series, PWS1-50K-NA, PWS1-250K-NA, PWS1-150K-NA, PWS1-100K-NA User Manual
User's Manual
PWS1-NA Series Bi-directional Grid-support
Utility-interactive
Energy Storage Inverter
1
Sinexcel
PWS1-NA Series Bi-directional Grid-support Utility-interactive
Energy Storage Inverter
User's Manual
Data version: V1.1
Filed in: March 15, 2017
BOM code: A81150292
Applicable to: PWS1-50K/100K/150K/250K-NA
Shenzhen Sinexcel Electric Co., Ltd. (“Sinexcel”) provides its customers with all-around technical support. Users can contact
Sinexcel local office or customer service center or directly contact Sinexcel Headquarters.
Shenzhen Sinexcel Electric Co., Ltd.
All rights reserved. In case of any content change, it shall be without prior notice.
Shenzhen Sinexcel Electric Co., Ltd.
Website: www.sinexcel.com
Add: Building 6, Area 2, Baiwangxin High-tech Industrial Park, No. 1002, Songbai Road, Nanshan District, Shenzhen
Postcode: 518055
Hotline: 0755-8651-1588
Fax: 0755-8651-3100
E-mail: service@sinexcel.com
Contents
Chapter I Overview ......................................................................................... 1
1.1 Model definition .................................................................................................................................................................... 1
1.2 Symbolic interpretation ...................................................................................................................................................... 1
1.3 System application ................................................................................................................................................................ 2
1.4 Important Safety instructions ........................................................................................................................................... 3
1.5 Precautions .............................................................................................................................................................................. 4
1.5.1 Personnel requirements .............................................................................................................................................. 4
1.5.2 Equipment use scope ................................................................................................................................................... 5
1.5.3 Rack label ......................................................................................................................................................................... 5
1.5.4 Description ....................................................................................................................................................................... 5
Chapter II Introduction to Modules.......................................................................... 6
2.1 Overall dimension of PCS-AC module ........................................................................................................................... 6
Chapter III Introduction to System.......................................................................... 8
3.1 System composition ............................................................................................................................................................. 8
3.2 Technical parameters ........................................................................................................................................................... 8
3.3 Overall dimension .............................................................................................................................................................. 11
3.4 Appearance description ................................................................................................................................................... 12
Chapter IV Device Installation ............................................................................ 15
4.1 Transport and storage ...................................................................................................................................................... 15
4.2 Removal ................................................................................................................................................................................. 15
4.3 Open-case inspection ....................................................................................................................................................... 16
4.3.1 Overview ........................................................................................................................................................................ 16
4.3.2 Packing list .................................................................................................................................................................... 16
4.4 Installation requirements ................................................................................................................................................ 16
4.4.1 Environment requirements ..................................................................................................................................... 16
4.4.2 Ground requirements ................................................................................................................................................ 16
4.4.3 Ventilation ..................................................................................................................................................................... 17
4.4.4 Operation space .......................................................................................................................................................... 17
4.4.5 Other requirements ................................................................................................................................................... 18
4.5 Rack installation .................................................................................................................................................................. 18
4.6 Electrical connection ......................................................................................................................................................... 19
4.6.1 Input requirement ...................................................................................................................................................... 19
4.6.2 Output reqirement ..................................................................................................................................................... 20
4.6.3 Wiring mode ................................................................................................................................................................ 20
4.6.4 System grounding ...................................................................................................................................................... 21
4.6.5 DC port wiring ............................................................................................................................................................. 22
4.6.6 AC port wiring ............................................................................................................................................................. 22
4.6.7 Wiring of terminal strips .......................................................................................................................................... 23
4.7 Check after installation .................................................................................................................................................... 24
Chapter V Commissioning and Operation ...................................................................... 25
5.1 Status ...................................................................................................................................................................................... 25
5.1.1 Automatic startup ...................................................................................................................................................... 26
5.2 Startup and shutdown ...................................................................................................................................................... 26
5.2.1 Check before startup ................................................................................................................................................. 26
5.2.2 Startup steps ................................................................................................................................................................ 26
5.2.3 Shutdown steps ........................................................................................................................................................... 27
5.2.4 Emergency shutdown................................................................................................................................................ 27
Chapter VI Operation Control Display Panel ................................................................. 28
6.1 Operation instructions ..................................................................................................................................................... 28
6.1.1 Main monitoring startup ...................................................................................................................................... 28
6.2 Home ...................................................................................................................................................................................... 28
6.3 Information ........................................................................................................................................................................... 29
6.4 Logs ......................................................................................................................................................................................... 29
6.5 Settings .................................................................................................................................................................................. 30
6.5.1 Local ................................................................................................................................................................................ 30
6.5.2 Model .............................................................................................................................................................................. 30
6.5.3 System ............................................................................................................................................................................ 30
6.5.4 AC settings .................................................................................................................................................................... 31
6.5.5 DC settings .................................................................................................................................................................... 34
6.5.6 AC Debug ...................................................................................................................................................................... 35
6.6 On/Off .................................................................................................................................................................................... 35
6.7 Control mode ...................................................................................................................................................................... 37
6.8 Tactics ..................................................................................................................................................................................... 37
6.8.1 Local strategy ................................................................................................................................. 错误!未定义书签。
6.9 Log in/out ............................................................................................................................................................................. 38
Chapter VII Communication Mode ............................................................................ 39
7.1 Communication interface ................................................................................................................................................ 39
7.1.1 RS-485 port .................................................................................................................................................................. 39
7.1.2 Ethernet port ................................................................................................................................................................ 40
7.1.3 Communication with BMS ....................................................................................................................................... 40
7.2 Monitoring system structure .......................................................................................................................................... 41
Chapter VIII Maintenane and Preservation ................................................................... 43
8.1 Operation environment requirements ........................................................................................................................ 43
8.2 Electrical and fixed connection inspection ................................................................................................................ 43
8.3 Clearing and cleaning ....................................................................................................................................................... 43
Appendixes ................................................................................................ 44
Appendix 1: Fault information of storage inverter ...................................................................................................................... 44
Appendix 2: Quality assurance and after-sales service ............................................................................................................. 45
Installation Records ...................................................................................... 46
1
Chapter I Overview
1.1 Model definition
This section introduces product model definition in this user’s manual.
Fig. 1-1 Product model definition
For example:
PWS1-100K-NA: 100kW bi-directional grid-support utility-interactive storage inverter (for North America)
1.2 Symbolic interpretation
Danger
This instruction indicates that there is a safety risk during operation. If this kind of warning information is not followed, it will
directly result in a serious human casualty accident.
Warning
This instruction indicates that there is a potential risk during operation. If this kind of warning information is not follow ed, it
might result in a serious human casualty accident.
Attention
This instruction indicates that there is a potential risk during operation. If this kind of warning information is not follow ed, it
might result in device damage.
50K
NA
PWS1
Bi-directional ES Inverter
Rated Power: 50 to 250K
For North America
2
Symbol
Explanation
Risk of burns
Operation after 10 minutes
Read the manual
ETL mark.
The Storage Inverter complies with the requirements of the applicable UL 9540
guidelines.
1.3 System application
energy storage system is composed of battery, storage inverter and AC distribution unit. Batteries are input to the storage
inverter after series-parallel connection of batteries. The storage inverter outputs it to AC distribution unit. It operates in different
modes according to the need.
PWS1-
50/100/150/25
0K-NA
L1
L2
L3
Battery
Array
AC 480V bus
(Optional)
AC MCCB 690V
200A 3P
BMS
RS-485 or
Ethernet
RS-485 or
Ethernet or
CAN
AC MCCB
Industrial/
Commercial
Load
Remote
Controller
(Field-
depend)
480V:208V
+
-
Fig. 1-2 Energy storage system diagram
3
The storage inverter plays a core role in the whole system and is characterized with high conversion efficiency, wide range
input voltage, rapid grid-tie/off-grid switching and convenient maintenance. It has a complete protection function (such as
islanding protection, DC overvoltage protection, AC overvoltage-under-voltage protection, over/under-frequency protection,
inverted sequence protection and output overload protection) and can meet grid-tie/off-grid operation requirements.
Attention
The storage inverter has a built-in isolation transformer.
1.4 Important Safety instructions
This user’s manual is about installation and use of Sinexcel PWS1 series 50~250kW energy storage inverter.
Before installation, please read this user’s manual carefully.
The storage inverter must be commissioned and maintained by the engineers designated by the manufacturer or the
authorized service partner. Otherwise, it might endanger personal safety and result in device fault. Any damage against the
device caused thereby shall not be within the warranty scope.
The storage inverter is only used for commercial/industrial purposes, and it cannot be used as an energy saving device related
to life support device.
This manual contains important instruction for Models PWS1-50K/100K/150K/250K-NA that shall be followed during
installation and maintenance of the Bi-directional Storage Inverter.
Danger
Any contact with copper bar, contactor and terminal inside the device or connected with the loop of utility grid might result
in burning or fatal electric shock.
Don’t touch any terminal and conductor connected with the loop of utility grid.
Pay attention to any instruction and safety documents about power on-grid.
Warning
There might be an electric shock risk inside the device!
Any operation related to this device will be conducted by professionals.
Pay attention to the safety precautions listed in safety instruction and installation documents.
Pay attention to the safety precautions listed in user’s manual and other documents.
4
Warning—large leakage current
Before connecting input power supply, please ensure that the grounding is reliable.
The device must be grounded complying with the local electric codes.
Warning
When storage battery is connected to storage inverter, there is DC voltage at input port. Please pay attention to it during
operation.
Warning
Don’t touch electric parts within 15 minutes after power outage!
There is dangerous energy in capacitance storage. Don’t touch device terminal, contactor and cooper bar and other
electric parts within 15 minutes after disconnecting all device power supplies.
Attention
All maintenance and preservation inside the device require using tools and shall be conducted by trained personnel.
The components behind the protective cover plate which are opened by tools cannot be maintained by users.
Please read this user’s manual before operation.
1.5 Precautions
1.5.1 Personnel requirements
The storage inverter is only commissioned and maintained by the engineers designated by the manufacturer or the authorized
service partner. Otherwise, it might endanger personal safety and result in device fault. Any damage against the device caused
5
thereby shall not be within the warranty scope.
1.5.2 Equipment use scope
The storage inverter is only used for commercial/industrial purposes, and it cannot be used as an energy saving device related
to life support device.
1.5.3 Rack label
Rack label contains important information for safe operation of rack. Don’t tear it up or damage it. S
Ensure that the rack label is clear and readable. If it is damaged or obscure, please replace it immediately.
1.5.4 Description
To facilitate users to use this manual more conveniently, a lot of pictures have been provided in the manual. The pictures can
be only used for explanative and schematic purposes. As for product details, the real product shall prevail.
6
Chapter II Introduction to Modules
2.1 Overall dimension of PCS-AC module
Fig.2-1 is a diagram for overall dimension of PCS-AC module case and installation hole.
Fig. 2-1 Overall dimension and installation diagram for PCS-AC module
Fig. 2-2 Front view for PCS-AC module
Position
Description
1
Normal indicator
light
2
Fault indicator
light
3
Hanger
4
Handle
5
Communication
cable
6
Power supply
cable
Warning
7
The handle on the front panel of the module cannot bear the weight.
The front panel of PCS-AC module has two LED lights, namely one green (Normal) light and one red (Alarm) light. When the
device is in standby state, the green light (Normal) flickers once every 1s. When the device is in sleep state, green and red
lights are off. When the device is in normal operation, the green light (Normal) is always on. When the device has a fault
warning, the red light (Alarm) will be always on or flicker.
8
Chapter III Introduction to System
3.1 System composition
PWS1-50K/100/150K/250K storage inverter is composed of 1 or multiple set(s) of PCS-AC modules. The modules identify
master-slave systems through the dial-up codes on the panel. #1 is a master system, while other modules track the master
system. The storage inverter rack is equipped with lightning protector, AC/DC breaker and distribution units. If grid-tie/off-grid
switching is to be achieved, extra power distribution unit needs to be added. Fig.3 -1 is a topological graph for its composition
and structure.
L
1
L
2
L
3
N
Transformer AC Breaker Q3
+
IN1
-
PCS AC 1
PCS AC n (n=0/ 1/ 2）
DC Breaker Q1
AC SPD
Fig. 3-1 Topological graph for storage inverter
Main composition of PWS1-50K/100/150K/250K storage inverter rack is shown in Table.3-1.
Table 3-1 Main composition of the storage inverter rack
Serial
No.
Item
Quantity
Remark
1
Rack
1
The rack is equipped with distribution
components.
2
PCS-AC module
1~5
50kW 1 set; 100kW 2 sets; 150kW 3 sets;
250kW 5 sets
4
Isolation transformer
1 5
Power Management Unit
1
Built-in on the rack door.
3.2 Technical parameters
Table 3-2 is detailed parameters for storage inverter.
9
Table 3-2 Technical parameters
PWS1-50K-NA
PWS1-100K-NA
PWS1-150K-NA
PWS1-250K-NA
AC parameters
Rated output
power
50kW
100kW
150kW
250kW
Wiring mode
3-phase and 4-wire system (including transformer)
Output overload
capacity
55kW
110kW
165kW
275kW
On/off-grid switch
time
≤ 80ms (For shorter time, it can be customized.)
Utility-Interactive
AC voltage
Rated voltage: 480V; voltage range: 423V~528V
Voltage accuracy
<1%
Ramp rate
accuracy
<10%
Frequency
60Hz, frequency range: 59.5Hz~60.5Hz
Frequency
accuracy
<0.1Hz
AC rated current
60A
120A
180A
300A
Maximum AC
input short circuit
current
(charge mode)
1200A
2500A
3500A
6000A
Maximum output
overcurrent
protection
Yes
Yes
Yes
Yes
AC output fault
current and
duration
300A 200ms
600A 200ms
900A300ms
1500A 300ms
Trip limit and trip
time accuracy
80ms (±30ms)
80ms (±30ms)
80ms (±30ms)
80ms (±30ms)
Total harmonic
distortion of
current
<3%
Power factor
0.8 leading~0.8 lagging adjustable
PF accuracy
±2%
10
Active power
accuracy
5%
Inactive power
accuracy
8%
Stand-alone
Rated output
voltage
480Vac
Rated output
frequency (Hz)
60Hz
DC parameter
DC voltage range
650V (500V-850V)
DC input/output
current
100A
200A
300A
500A
Rated DC power
50kW
100kW
150kW
250kW
Charging mode of
on-grid
It can charge and discharge with constant current and power and supports three-section
charging (pre-chargeequalized chargefloating charge).
System
Dimension
800mm*2160mm*800mm (W*H*D)
1200mm*2160mm*800mm
(W*H*D)
Weight
465kg
680kg
910kg
1280kg
Noise
≤70dB
Enclosure
NEMA1(IP20)
Allowable
environment
temperature
-20℃~50℃(auto de-rate at 45℃ or above)
Cooling mode
Forced air cooling
Humidity
0~95% (no condensation)
Allowable
maximum
elevation
3000m
Display
Touch screen
Standard
communication
interface
RS 485, CAN and Ethernet
11
3.3 Overall dimension
The overall dimension of the storage inverter is shown in Fig.3-2.
The PWS1-50K/100K/150K Rack, width: 800mm, height: 2,160mm (without lifting rings); depth: 800mm.
The PWS1-250K Rack, width: 1200mm, height: 2,160mm (without lifting rings); depth: 800mm.
故障/FAULT
电源/POWER 运行/RUN
EPO
2160
800800
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