Modern approaches to developing hardware and software system for operation and emergency control of
large-scale power grid
A.B. OSAK, A.V. DOMYSHEV, E.Y. BUZINAESI SB RAS, RUSSIA
Purposes of HSS
In the project «Intelligent coordination of operation and emergency control of EU and Russian power grids» (ICOEUR) a new generation hardware and software system (HSS) has been developed to control normal and emergency states of a large-scale power grid.
The project is implemented within the Seventh Framework Programme of the European Community (EC) for research and technological development in energy.
Purposes of HSS
• Grid monitoring and analysis of power grid operation conditions.
• Automation of operation of power grid using modern techniques, methods and tools.
• Automation of emergency control of large scale power grid using modern techniques, methods and tools.
• Intelligent coordination of operation and emergency control of large scale power grid.
Functions of HSS
• Optimal operation and emergency control of power grid subject to economical conditions using modern methods and information technologies.
• Increasing efficiency and reliability of operation of interconnected power grids.
Problems of existing tools
• There are no rigorous tools for monitoring emergency control systems and devices.
• There are no advanced tools for short-term forecasting. • Insufficient reliability of emergency control systems in
global scale.• Insufficient account of the restructuring processes in the
power industry.• Insufficient adaptability and harmonization of the existing
normative documents with the rules and documents used in power grids in other countries (UCTE, NORDEL, etc.).
1-2. Monitoring and forecasting
EPS simulator
Operator workstationEmergency controller
Computation server
Communication module
Emergency control devices coordination module
EPS state controlling module
Contingency analysis module
EPS state monitoring module
Transient stability analysis module
Steady state calculation module
State estimation module
Software of emergency controller
Communication module
Visualization module
Manual input module
Ope
rato
r
Communication module
Visualization module Manual input module
Computer-aided modeling of power system
Operator
Controller
3. Existing reliability means
• Redundancy of controlling devices;• Redundancy of data transmission channels;• Power standby;• Data backup.
3. Reliability problem
Object-2
SCADA-HSS
CS-MNSSA, EA
SCADA-HSS
CS-RPSL1SSA, EA
SCADA-HSS
CS-RPSL2SSA, EA
SCADA-HSS
CS-КСУ-CR1NSC, EC
SCADA-HSS
CS-КСУ-CR2NSC, EC
SCADA-HSS
CS-КСУ-CR3NSC, EC
IS-RPSL1 IS-MN-LSG IS-RPSL2
PDC PDC
PMUECD
AFCS
AF
GDLDLRGR
Object-3
PMUECD
AFCS
AF
GDLDLRGR
Object-4
PMUECD
AFCS
AF
GDLDLRGR
Object-5
PMUECD
AFCS
AF
GDLDLRGR
Object-1
PMUECD
AFCS
AF
GDLDLRGR
Object-6
PMUECD
AFCS
AF
GDLDLRGR
IS – information systemMN – main node (of distributed system)LSG – large scale gridRPSL – regional power system levelHSS – hardware and software systemCS – computational serverSSA – steady states analysisEA – emergency analysisCCS – coordinating control systemCR – control regionNSC – normal state controllingEC – emergency controlPDC – phase date concentratorECD – emergency controlling devicePMU – phasor measurement unitAFCS – active filter controlling systemAF – active filterGD – generators disconnectionLD – load disconnectionLR – load regulationGR – generation regulation
Information level
Control level
3. Software level reliability
Ядро
Database
HMI
Archiving Interconnectionwith
externalsystems
Algorithms
Metering and controlling devices
Communicationdrivers
Applicationlevel
Applicationmanager
Real timedata base
3. Software level reliability
Application manager
Real time data base
#1
Data server
#1
Data server
#2
Data client
#2
Data client
#2
Features of HSS architecture
SCADA-HSS
CS-MNSSA, EA
SCADA-HSS
CS-RPSL1SSA, EA
SCADA-HSS
CS-RPSL2SSA, EA
SCADA-HSS
CS-КСУ-CR1NSC, EC
SCADA-HSS
CS-КСУ-CR2NSC, EC
SCADA-HSS
CS-КСУ-CR3NSC, EC
Simulator-IS-RPSL1 Simulator-IS-MN-LSG Simulator-IS-RPSL2
PDC
Object-Laboratory
PMUECD
AFCS
AF
Simulator-GD, LD, LR, GR
IS – information systemMN – main node (of distributed system)LSG – large scale gridRPSL – regional power system levelHSS – hardware and software systemCS – computational serverSSA – steady states analysisEA – emergency analysisCCS – coordinating control systemCR – control regionNSC – normal state controllingEC – emergency controlPDC – phase date concentratorECD – emergency controlling devicePMU – phasor measurement unitAFCS – active filter controlling systemAF – active filterGD – generators disconnectionLD – load disconnectionLR – load regulationGR – generation regulation
Simulator-Object-2
Simulator-ECD
Simulator-Object-3
Simulator-ECD
Simulator-Object-4
Simulator-ECD
Simulator-Object-5
Simulator-ECD
Simulator-Object-6
Simulator-ECD
Simulator-PDC
computer-aided modeling of power system
playback of recorded states of power system on emulator
Information level
Control level
4. Account of the restructuring in PS
• Division of information by type.• Determination of regulations in information exchange
between HSS nodes for every information type.• Availability of different communication technologies, in
particular existing ones in power systems.• Introduction of different abstraction levels, allowing
development of the universal software modules that are not related to specific communication technologies and data formats.
4. Account of the restructuring in PS
• Differentiation of transmitted information volumes both by technical (access control) and mathematical (distributed computations) methods.
• Possibility for artificial accuracy reduction of calculation results to preserve information confidentiality.
• Possibility to calculate generalized indices required by other participants and to transmit only these indices without source data.
• Assurance of information transmission in full volume within the confidential areas to enhance system survivability.
5. Adaptability and harmonization
• Introduction of different abstraction levels, allowing development of the universal software modules that are not related to specific communication technologies and data formats.
• Development of the algorithm modules universal over different countries.
• Development of the specialized modules for taking into account local normative documents.
Software platform for HSS
We suggest ANARES package as platform for developing HSS software and for integrating with software modules of other participants
5. Conclusion
• Presented architecture of HSS is scalable and allows further development.
• Concrete results will be presented in ICOEUR report.
Thank you for your attention