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Spectrum Power™
transmission
management
Intelligent control systems
for a smarter future
siemens.com/spectrum-power
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Spectrum Power™: transmission
grid management at its best
Reliable and efficient operation
Intelligent and efficient power transmission is key to the
highly reliable and safe supply of power. The operation of
power transmission systems has never been more
demanding. Many new stakeholders, new sources of
energy, fluctuating demand, and new regulations need to
be considered, while the grids need to be able to react to
an increasing degree of volatility. The application of new,
digitally driven solutions helps ensure stable grid operation under these new conditions.
Siemens has compiled a solution-oriented, integrated
portfolio for transmission grid operators. It comprises
products and solutions for efficient and reliable power
supply with a focus on long-distance transmission, the
grid integration of renewables, and strengthened grid
stability.
Siemens Spectrum Power™ the fully integrated, customizable control center technology offers best-of-class applications for transmission management in energy networks of
any size.
Spectrum Power™: the future-proof control center platform
The Spectrum Power™ Energy Management System (EMS)
provides versatile load flow optimization tools, helping
operating staff to ensure reliable supply, the efficient use of
generation resources, and reduced transmission losses in
both real-time and operation planning phases.
Spectrum Power™ enables more reliable and secure realtime system operation by detecting faulty measurements. It
highlights critical network areas and recommends
preventive countermeasures by continuously running
“what if” scenario simulations. QuickStab, SIGUARD® PDP
(Phasor Data Processing), and SIGUARD® DSA (Dynamic
Security Assessment) software helps ensure efficient blackout prevention with real-time and anticipatory monitoring
of power system stability, alerting operators before a critical situation can occur.
Moreover, in response to the increased use of wind energy,
the Spectrum Power™ WPM (Wind Power Management)
package allows for power generation forecasts and load
flow congestion management.
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Experience and expertise
All-encompassing experience
Spectrum Power™ is the result of years of accumulated
knowledge and experience in energy management. For
the past three decades, Siemens has been supplying and
developing SCADA (Supervisory Control and Data Acquisition) and EMS systems around the globe.
With over 3,000 control centers delivered worldwide,
Spectrum Power™ represents field-proven technology.
Siemens understands that contributing to its customers’
success means more than just supplying a hardware and
software platform. That’s why Siemens is known for
providing complete and comprehensive solutions,
including:
• Engineering
• Configuration
• IT integration
• Training
• Maintenance
• Security services
Intelligent life cycle management ensures innovation and security
In today’s ever-changing world, where energy markets and
trading aspects are in a state of flux, Siemens is unique in
being able to effectively execute all phases of a project.
Global presence, local expertise
With its presence in more than 90 countries, Siemens is
able to manage even the most demanding requirements of
local projects. Customers from all over the world can rely
on the company’s expertise and a broad range of services
that ensure reliable transmission grid operation around the
clock.
Investing in a modern EMS increases long-term profitability
while ensuring grid stability. With its fast and secure innovation cycles, Siemens consistently brings users new technology and caters to market requirements, covering everything from professional consulting on projects of any size to
the configuration, installation and commissioning of complete systems.
Protecting your investments
Patch
management
Security
training
Vulnerability
assessments
System
hardening
Service
packs
Component
upgrades
Release
upgrades
Security
consulting
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The EMS architecture for today …
All criteria met
Each Spectrum Power™ system is configured with the
optimum number of web users and servers.
By distributing computationally intensive functions across
several efficient servers, optimum reaction times are
achieved for every system load. Critical functions are
hosted on fully redundant, hot standby servers. Less critical
functions are hosted on servers which employ a “spare”
redundancy concept.
For the acquisition of field data, Spectrum Power™ provides
a powerful communication front-end system supporting
the communication with RTUs (Remote Terminal Units) of
different manufacturers. A large variety of communication
protocols are implemented, such as IEC 60870-5-101,
IEC 60870-5-104, DNP 3.0 / DNP3.0i, and many more.
Standardized protocols such as UCA/ICCP or ELCOM-90
provide a secure basis for reliable and fast data exchange
with other control center systems.
Scalable, flexible and expandable
No matter what size or functionality is required, Spectrum
Power™ can readily expand or adapt to any changes.
The Spectrum Power™ architecture can be scaled up or
down to suit any network control system configuration –
and with any combination of applications.
Straightforward configuration
The Spectrum Power™ GUI runs on any hardware platform,
from multiscreen consoles to handhelds. The menu bar is
freely configurable.
The network structure and its individual elements are
graphically represented on a world map, with zooming,
panning, and decluttering for fast orientation.
User guidance, including easy navigation between world
maps, lists, and application windows also contributes to
smooth and error-free operation.
Future-oriented architecture
Spectrum Power™ offers independence from hardware
vendors by supporting the Linux operating system with
64-bit architecture. A broad choice of hardware provides
flexibility for the utility’s purchasing strategy. Spectrum
Power™ also adheres to the architectural paradigms of an
SOA for easy and seamless integration into an existing
IT landscape. This means investments in software and
hardware retain their utility and value for many years to
come.
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… and tomorrow
Enterprice Service Bus
Spectrum Power™ High-Speed Bus
Network
planning
Mainte-
nance
scheduling
Asset
mgmt
Wind
power
forecast
Real-time
energy
market
mgmt
Day-ahead
energy
market
mgmt
Base SCADA HIS IMM
Base
functionality:
data model, UI,
SCADA, archive
PA
Generation
control for more
economic and
reliable operation
STLF
Short-term
forecast of power
system load
WPM
Wind power
mgmt
Transmission load
flow calculation,
grid optimization,
and “what if” studies
TNA Base OPF DSA TS
CFE
IFS
ICCP
ELC
Communication
with substation
RTU/SAS and other
control centers
IFS Indepen dent Front- end System
IMM Information Model Manager
OPF Optimal Powe r Flow
PA Power A pplications
SCADA Supervisory Control and Data Acquisition
CFE Commu nication Front-End
DSA Dynamic Stabilit y An alysis
ELC ELCOM Communication Protocol
HIS Historic al Information Sys tem
ICCP Inter Control Center Communication Protocol
STL F Shor t-Term L oad Forecasting
TNA Transmission Net work Applications
TS Training Simulato r
WPM Win d Power Managem ent
Leading the next OT/IT revolution
Customized SCADA/EMS solutions are developed from a
range of proven and innovative components – basic
components of SCADA, communications, and data modeling, plus additional applications for grid optimization and
generation management. Thanks to a service-oriented
architecture (SOA), Spectrum Power™ is able to use other
IT systems in a company – and these systems can, in turn,
access the services of the grid control system. Standardized processes, interfaces, and messaging specifications
based on the IEC 61968 and IEC 61970 standards support
the trouble-free exchange of data between the systems.
Multi-site – Flexible operation with centralized
data engineering
The Spectrum Power™ multi-site operation capability
provides a powerful tool, enabling the transfer of network
management from one Spectrum Power™ control center
to another. This allows for cooperative control of a power
system – configurable from two or more control centers.
This yields greater reliability of the control system (emergency strategies) and considerably reduces operational
costs (overnight staff reduction, neighborhood support in
emergencies). Centralized maintenance of a uniform data
model for all multi-site control centers adds an all-time
consistent database at a minimum cost.
Safe integration of increasing renewable generation
The Wind Power Management (WPM) component
efficiently and securely manages a transmission system
that integrates wind energy resources. The Wind Power
Forecast application forecasts the yield from wind plants
based on meteorological and turbine availability data, and
the Configurable Dispatch Engine distributes overall yield to
help maintain system balance.
For monitoring steady-state and transient stability conditions, interfaces are linked to the Spectrum Power™ TNA
(Transmission Network Applications) component and to
SIGUARD® DSA respectively.
Finally, the Wind Generation Curtailment application provides dispatch instructions to maintain system reliability in
case of excessive wind power generation. WPM is integrated with other components, whether internal or external
SCADA/EMS, by means of web services in the framework of
our service-oriented architecture.
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Specialized security …
Uncompromising cyber security
A major goal of Spectrum Power™ is to provide features and
services that maximize customers’ security while
complying with all relevant regulatory requirements.
With its Spectrum Power™ Security Service, Siemens tracks
security bulletins published by third-party vendors and
other industry sources, installs and tests available security
fixes on the latest Spectrum Power™ systems and components, and communicates all the results and known issues
to its customers.
At the same time, each Spectrum Power™ system is delivered in a hardened state from the factory, with only the
necessary ports open, and only the services and software
installed that are needed.
Recognizing that cyber security requires an ongoing commitment, Siemens provides a comprehensive patch management service to licensed Spectrum Power™ owners. This
includes patch notification, basic patch testing, up to and
including optional custom services such as extended testing
Information Model Manager – Highlights
• Considerable savings potential due to central data management
• Openness and interoperability for seamless integration into the Enterprise IT application environment
• Modern, user-friendly architecture
• SOA interfaces for easy integration via enterprise service bus (ESB)
• Standardized model and information exchange using CIM-XML/RDF format
• Multilevel security system to protect all data
and on-site installation by Siemens technicians.
Siemens also provides a range of security consulting services, on-site security evaluations, and training.
A global service network is available to assist Spectrum
Power™ owners through secure remote diagnosis and
problem resolution.
Realistic training for confident operation
Efficient and secure transmission network operation needs
qualified operators.
Spectrum Power™ Operator Training Simulator (OTS)
replicates real-life power system scenarios to train operators
to handle emergencies in a non-critical environment. The
OTS has a user interface and application functions that are
identical to the real-time system. The simulator presents
results to the operators that are as realistic and accurate as
those observed in real life. With an efficient web-based
instructor environment and a comprehensive training
scenario builder, the OTS enables training sessions when
required, and allows power system operators to maintain a
high level of operational readiness.
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… focused efficiency
Complete SCADA functionality
Secure, reliable and efficient network operation is ensured
throughout the system thanks to:
• Fast navigation from problem to cause and between
lists and diagrams
• Intuitive operation based on windows, menus, tooltips,
toolbars, context menus and drag & drop
• Clear graphical indication of the current situation
• Efficient preparation and validation of switching
operations via powerful switching procedure
management
Consistent reporting and easy evaluation
A set of analysis tools ensures powerful search, filter and
sorting functions in all lists, with operators able to predefine filter criteria, charts and lists for convenient access.
Selected data can be exported to spreadsheets for reporting
and further evaluation.
Central, consistent data management
The Spectrum Power™ Information Model Manager (IMM) is
a proven, best-of-class engineering tool for data modeling,
maintenance, and exchange. It provides data for applications within EMS for SCADA, for communication with telecontrol devices, and other company data. It serves as a
central repository to efficiently manage data compliant
with the Common Information Model (CIM) IEC 61970 –
eliminating redundant model and data maintenance efforts.
The IMM makes all grid data available for current operation
as well as all planned modifications. Innovative functions
provide an exact overview of all previous changes and their
documentation, along with a preview of planned future
model versions based on the energization dates.
As a result, Spectrum Power™ IMM helps to meet all regulatory and security requirements.
Gain better situational awareness with the innovative Spectrum
Power™ Head-up display (HUD). Benefit from modern user
interaction, with highest focus on usability and functionality.
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World’s First Dynamic Grid Control Center
Advanced assistance system for transmission grid operators:
Siemens and research and scientific partners have opened a dynamic grid
control center at the Technical University of Ilmenau, Germany, that is the
first of its kind in the world.
More data …
Archiving – intuitive and intelligent
The Historical Information System (HIS) is a powerful,
scalable archive system able to process very large data
volumes. The use of open interfaces allows easy access for
data reporting and evaluation in the office environment.
The latest, intuitive Web-user interface allows seamless
integration with Spectrum Power™ and enables provisioning of the data source for postmortem reviews.
Spectrum Power™ HIS offers maximum performance and
security in data archiving. HIS may be situated in the control center for use by operations personnel. An additional
HIS server may also be placed into a DMZ (demilitarized
zone) for access from other corporate networks, while at
the same time preserving the security of the control center.
Historical Information System – Highlights
• Archiving of real-time values
• Data collection and storage – both periodic and on demand
• Temporary buffering for redundancy
• Manual editing and audit trail including automatic recalculations
• Flexible aggregations and calculations
• Easy to configure
• Integrated data compression
• Postmortem reviewing
• Scalable architecture
• Easily integrated with ODBC/OLE DB-based tools (e.g. Microsoft Excel)
Highly reliable, easily accessible and
best-quality information
Spectrum Power™ HIS chronicles operational experience
and related conditions to better determine desirable adjustments in managing assets and corresponding procedures, so higher-quality services can be implemented at a
lower overall cost.
The flexible data aggregation and formula-based calculations feature can transform raw data collected with
Spectrum Power™ HIS into information for general use. Ad
hoc queries allow rapid access to aggregated and calculated
data.
For postmortem analysis, the archived messages and values
can be replayed in one-line diagrams and alarm lists. This
HIS replay (flight recorder) functionality allows users to run
a continuous (play/pause) or step-by-step (next/previous)
history walk-through.
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… more applications
Applications – best-in-class and future-proof
From database management to network applications,
Spectrum Power™ is equipped with the latest functionality
for maximum reliability and efficiency under all operating
conditions. Once integrated in the data processing environment, it supports all business processes. As a leading supplier of EMS, Siemens has years of experience in providing
applications that have proven highly successful in systems
of every conceivable size and complexity.
Spectrum Power™ TNA
The Transmission Network Applications (TNA) suite provides
tools for advanced monitoring beyond SCADA in order to
assess the security of the transmission grid against planned
and unplanned outages and changing system conditions.
TNA will inform the operator of the current system state,
the potentially harmful events to monitor and make recommendations for actions to take in response to harmful
events, to proactively prevent system degradation and to
lower the cost of operation.
State estimation – fast, robust and accurate
With its Orthogonal State Estimator, Spectrum Power™
represents a technical breakthrough. It meets the need for
state estimation that combines the speed of a conventional
design with the ruggedness of orthogonal transformation
techniques.
Network parameter adaptation –
reliable and comprehensive
Network Parameter Adaptation (NPA) provides parameters
used to generate a forecast of bus loads, regulated bus
voltages, and of the status of time-switched breakers. In
real-time execution, the State Estimator uses the parameters to schedule loads and desired voltages at all unobservable buses and to generate pseudo load measurements.
In study situations, the Power Flow function uses these
parameters to schedule bus loads and desired voltages for
the specified day and hour of a study.
Security Analysis – early warnings and look-ahead
This application provides a reliable way of determining the
security of a power system under specified contingencies.
For each contingency, Security Analysis simulates the
steady-state power flow solution and checks the network
for out-of-range conditions.
Security Analysis also observes planned outages that are
scheduled for the immediate future (Look-Ahead mode),
and provides an early warning concerning the potential
impact, giving operators time to prepare preventive measures and/or reschedule the outages.
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Advanced awareness …
Power flow optimization – practical and profitable
In the case of Spectrum Power™, the core function of
optimal power flow is fully integrated in the control system,
providing a clear, practical interface. It also permits largely
automated operational sequences, along with detailed
analytical facilities. In addition, it offers the following
advantages:
• Minimized transmission losses
• Improved Volt/VAr
• Reduced reactive power transmission
• Faster correction
• Cost-effective elimination of transmission overloads
• Increased situational awareness with fully integrated
look ahead grid forecast
Transmission Network Applications – Highlights
• Field-proven applications suite supporting utilities worldwide
• Focused on robustness and ease of use
• Provides realistic and implementable measures
• Integrating the latest requirements in the field of network applications
• Support for traditional/liberalized energy markets
• Configurable as a stand-alone system or integrated with SCADA
• Enhance real-time operations and operational planning capability to ensure transmission system reliability
• Fully integrated day ahead and intraday congestion forecast
• Automatic Time Series Congestion Forecast
• Supports ENTSO-E Common Grid Model Exchange System (CGMES)
In operation
TNA (Transmission Network Applications) supports three
working environments:
1. Real-time (state estimator-based) – system conditions
using real-time data provided by SCADA, AGC, etc.
2. Study (power flow-based) – used for “what if” analysis of
system conditions created for a specified date/time and
initialized from a real-time snapshot or from a saved case.
3. Study (state estimator-based) – analysis of offline system
conditions typically related to real-time operations based
on a snapshot or from a saved case that recommends
actions to take in response to harmful events, to proactively
prevent system degradation and to lower the cost of operation.
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… is advanced management
System stability
Power system stability is becoming increasingly important
for today’s system operation; stability limits are often
reached far earlier than thermal or rated limits. The Voltage
Stability Analysis (VSA) application provides an online tool
to identify voltage stability problems. VSA can be used in
conjunction with static voltage or thermal security analysis
to provide a more complete picture of system security by
determining how close the system is to voltage collapse. An
even more comprehensive stability analysis extending to
transient stability and small signal stability is enabled by
the integration of SIGUARD® DSA – an automatic and
intelligent real-time dynamic security assessment tool for
the calculation of the stability margin and the validation of
remedial action. This contingency study runs in automatic
cycles and is always based on the most recent snapshot
from the State Estimator application.
Short-Term Load Forecast
The Short-Term Load Forecast (STLF) application calculates
the power system load for future hours and days, thus
enabling the planning of sufficient generation, spinning
reserve, and standby reserve, as well as performing TNA
security and optimization calculations for upcoming time
instances, e.g. in the course of grid congestion management. Reliable and accurate results based on statistical and
other methods are ensured by features such as the rescaling of weather forecast data and Very Short-Term Load
Forecast correction. Automatic after-the-fact error analysis
supports continuous tuning of the algorithm in order to
adapt to changing system load characteristics.
Power Applications
The Power Applications (PA) subsystem enables the integrated control of generation resources from a grid control
center for maintaining the system balance with the utmost
reliability. A Load Frequency Control (LFC) application
featuring a fully compensated area controller with separated small and large signal handling provides for both
utmost stability and fast response. The Reserve Monitor
(RM) application provides tools for the definition of active
and reactive reserve requirements, periodically calculates
active and reactive reserves, compares the reserves to the
requirements, and signals in the case of insufficiencies.
Primarily for vertically integrated utilities, Economic
Dispatch (ED) and Production Cost Monitor (PCM) applications are provided and factors such as fuel efficiency costs
and reserve power capacity are matched.
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Published by
Siemens AG
Smart Infrastructure
Digital Grid
Humboldtstrasse 59
90459 Nuremberg, Germany
For the U.S. published by
Siemens Industry Inc
100 Technology Drive
Alpharetta, GA 30005
United States
For more information, please contact our
Customer Support Center
E–mail: spectrumpower.de@siemens.com
Article No. SIDG-B10027-00-7600
Dispo 06200 WS 08180.05
© Siemens 2021
For all products using security features of OpenSSL, the
following shall apply: This product includes software
developed by the OpenSSL Project for use in the OpenSSL
Toolkit (www.openssl.org).
This product includes cryptographic software written by
Eric Young (eay@cryptsoft.com).
Subject to changes and errors. The information given in
this document only contains general descriptions and/or
performance features which may not always specifically
reflect those described, or which may undergo modification in the course of further development of the products.
The requested performance features are binding only
when they are expressly agreed upon in the concluded
contract.
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