Power System Control Centers: Future Trends (Revised 1-16-06) Chen-Ching Liu Iowa State University * F. F. Wu, K. Moslehi ...
Evolution of Control Centers  <ul><li>More computer applications after 1965 Northeast blackout  </li></ul><ul><li>Security...
Evolution (Conti) <ul><li>PCs become more popular for control centers in 1980s </li></ul><ul><li>“ Deregulation” waves in ...
Control Centers in a Market Environment ISO/RTO CC GenCo CC LSE CCs Market Participants Internet
Different Roles <ul><li>ISO / RTO </li></ul><ul><li>Generation companies </li></ul><ul><li>Load serving entities  </li></u...
SCADA / AGC <ul><li>Load frequency control </li></ul><ul><li>Load forecasting </li></ul><ul><li>RTU Communication </li></ul>
Network Applications <ul><li>Applications  </li></ul><ul><li>Topology processor </li></ul><ul><li>State estimation </li></...
Data Warehouse <ul><li>Operational  </li></ul><ul><li>Real time </li></ul><ul><li>Historical </li></ul>
Market Applications <ul><li>Bilateral transactions management </li></ul><ul><li>Security constrained economic dispatch </l...
Market Infrastructure <ul><li>Bidding and schedule management </li></ul><ul><li>Market information publishing </li></ul>
Commercial Systems <ul><li>Settlements </li></ul><ul><li>Billing and credit </li></ul><ul><li>Metering systems </li></ul>
Architecture <ul><li>Local area network with PCs or workstations </li></ul><ul><li>Control center to RTU links </li></ul><...
Present EMS and BMS Interactions in Control Centers Market Participants Business Management System Energy Management Syste...
Changing Environment <ul><li>Decentralization  </li></ul><ul><li>Integration  </li></ul><ul><li>Flexibility  </li></ul><ul...
Decentralization  <ul><li>Market participants play a role in economic and reliability decisions </li></ul><ul><li>Coordina...
Integration  <ul><li>Enterprise architecture incorporating  </li></ul><ul><li>Control center </li></ul><ul><li>System plan...
Flexibility  <ul><li>Market participants change over time </li></ul><ul><li>Market structures also evolve </li></ul><ul><l...
Openness <ul><li>Dependence on specific vendors is not desirable </li></ul><ul><li>Portable software to run on various har...
Enabling Technologies <ul><li>Communications protocols </li></ul><ul><li>Distributed systems </li></ul><ul><li>Object tech...
Distributed Control Center <ul><li>Separation of SCADA, EMS and BMS </li></ul><ul><li>IP-Based distributed SCADA </li></ul...
Grid Computing and Grid Service <ul><li>Clustering of a wide variety of distributed resources to be used as a unified reso...
Future Control Centers <ul><li>Ultra-fast data acquisition system </li></ul><ul><li>Greatly expanded applications </li></u...
Future Applications <ul><li>Market surveillance and contract compliance </li></ul><ul><li>Phasor measurement units (PMUs) ...
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Control centers future_trends-revision

  1. 1. Power System Control Centers: Future Trends (Revised 1-16-06) Chen-Ching Liu Iowa State University * F. F. Wu, K. Moslehi and A. Bose, “Power System Control Centers: Past, Present and Future,” Proceedings of the IEEE, Nov. 2005, pp. 1890-1908.
  2. 2. Evolution of Control Centers <ul><li>More computer applications after 1965 Northeast blackout </li></ul><ul><li>Security applications in 1970s </li></ul><ul><li>State estimation and security analysis capabilities are common today </li></ul><ul><li>Early computer are specialized real time processors with back up </li></ul>
  3. 3. Evolution (Conti) <ul><li>PCs become more popular for control centers in 1980s </li></ul><ul><li>“ Deregulation” waves in 1990s led to formation of ISOs </li></ul><ul><li>Further efforts to establish RTOs </li></ul><ul><li>Electricity markets formed around the world in 1990s and 2000s. </li></ul>
  4. 4. Control Centers in a Market Environment ISO/RTO CC GenCo CC LSE CCs Market Participants Internet
  5. 5. Different Roles <ul><li>ISO / RTO </li></ul><ul><li>Generation companies </li></ul><ul><li>Load serving entities </li></ul><ul><li>Control centers at different levels play different roles </li></ul>
  6. 6. SCADA / AGC <ul><li>Load frequency control </li></ul><ul><li>Load forecasting </li></ul><ul><li>RTU Communication </li></ul>
  7. 7. Network Applications <ul><li>Applications </li></ul><ul><li>Topology processor </li></ul><ul><li>State estimation </li></ul><ul><li>Contingency analysis </li></ul><ul><li>Voltage stability </li></ul><ul><li>Power flow </li></ul>
  8. 8. Data Warehouse <ul><li>Operational </li></ul><ul><li>Real time </li></ul><ul><li>Historical </li></ul>
  9. 9. Market Applications <ul><li>Bilateral transactions management </li></ul><ul><li>Security constrained economic dispatch </li></ul><ul><li>Security constrained unit commitment </li></ul><ul><li>Locational Marginal Price </li></ul><ul><li>Load forecast </li></ul><ul><li>Outage management </li></ul><ul><li>Compliance monitoring </li></ul>
  10. 10. Market Infrastructure <ul><li>Bidding and schedule management </li></ul><ul><li>Market information publishing </li></ul>
  11. 11. Commercial Systems <ul><li>Settlements </li></ul><ul><li>Billing and credit </li></ul><ul><li>Metering systems </li></ul>
  12. 12. Architecture <ul><li>Local area network with PCs or workstations </li></ul><ul><li>Control center to RTU links </li></ul><ul><li>SCADA and EMS applications </li></ul><ul><li>Market participants communicate through Internet </li></ul>
  13. 13. Present EMS and BMS Interactions in Control Centers Market Participants Business Management System Energy Management System Energy Offers Prices, Quantities Contracts, Schedules Operating Constraints Generations, Transmission, Load
  14. 14. Changing Environment <ul><li>Decentralization </li></ul><ul><li>Integration </li></ul><ul><li>Flexibility </li></ul><ul><li>Openness </li></ul>
  15. 15. Decentralization <ul><li>Market participants play a role in economic and reliability decisions </li></ul><ul><li>Coordination among ISOs </li></ul><ul><li>Coordination among ISO / RTO and market participants </li></ul><ul><li>Data and controls become distributed </li></ul>
  16. 16. Integration <ul><li>Enterprise architecture incorporating </li></ul><ul><li>Control center </li></ul><ul><li>System planning </li></ul><ul><li>Distribution management systems, power plant control </li></ul><ul><li>Business processes </li></ul>
  17. 17. Flexibility <ul><li>Market participants change over time </li></ul><ul><li>Market structures also evolve </li></ul><ul><li>Modular design allows modules to be added, deleted or modified </li></ul>
  18. 18. Openness <ul><li>Dependence on specific vendors is not desirable </li></ul><ul><li>Portable software to run on various hardware and software platforms </li></ul>
  19. 19. Enabling Technologies <ul><li>Communications protocols </li></ul><ul><li>Distributed systems </li></ul><ul><li>Object technology </li></ul><ul><li>Component technology </li></ul><ul><li>Middleware </li></ul><ul><li>Agent technology </li></ul>
  20. 20. Distributed Control Center <ul><li>Separation of SCADA, EMS and BMS </li></ul><ul><li>IP-Based distributed SCADA </li></ul><ul><li>Standard CIM based distributed data processing </li></ul><ul><li>Middleware based distributed EMS and BMS applications </li></ul>
  21. 21. Grid Computing and Grid Service <ul><li>Clustering of a wide variety of distributed resources to be used as a unified resource </li></ul><ul><li>Seamless global aggregation of of resources </li></ul><ul><li>Grid service is a convergence of grid computing and web services </li></ul>
  22. 22. Future Control Centers <ul><li>Ultra-fast data acquisition system </li></ul><ul><li>Greatly expanded applications </li></ul><ul><li>A partner grid of enterprise grids </li></ul><ul><li>Dynamic sharing of computational resources of all intelligent devices </li></ul><ul><li>Use of service oriented architecture </li></ul><ul><li>Distributed data acquisition and processing services </li></ul><ul><li>Distributed control center applications </li></ul><ul><li>Use of grid services architecture </li></ul>
  23. 23. Future Applications <ul><li>Market surveillance and contract compliance </li></ul><ul><li>Phasor measurement units (PMUs) </li></ul><ul><li>On-line dynamic security </li></ul><ul><li>Visualization </li></ul><ul><li>Self-healing power grids </li></ul>

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