In this comprehensive and systematically presented text, the various aspects of modern power system operation and control are discussed. Covered in the volume are: computer configurations and control aids, load-frequency control and automatic generation c ontrol, reactive power planning and scheduling procedure, security monitoring, and control under emergency conditions. Also presented are case study reports on power grid failures in different countries, examining how they occurred, how they were handled, and what lessons that they can provide. A "defence" plan against similar major disturbances is detailed, including the overall system architecture adopted and the processing and communication sub-systems.

Inhalt

1. Computer System for Power System Operation and Control.- 1.1 Computer Control of Power Systems.- 1.2 Functions, Computer Configurations and Control aids.- 1.3 Case Studies of Computerisation in Control Centres.- 2. System control.- 2.1 Economic Load Dispatch for Thermal Power Plants.- 2.2 Load-Frequency Control (LFC).- 2.3 Automatic Generation Control (AGC).- 3. Reactive power balance and voltage control.- 3.1 General.- 3.2 Reactive Power Planning and Control Boundaries.- 3.3 Reactive Power Requirements.- 3.4 Reactive Power Balance Case Study.- 3.5 Reactive Generation and Absorption.- 3.6 Two Case Studies.- 3.7 Reactive Scheduling Procedure.- 3.8 Operating Measures.- 3.9 Modern Trends in Voltage Regulation.- 4. System Security and Quality of Operation.- 4.1 General.- 4.2 Definitions of Operating States, Voltage and Frequency Collapse, Electromagnetic Compatibility and Security Despatch.- 4.3 Security Monitoring.- 4.4 Quality of Operation.- 4.5 Effective Network Utilisation.- 4.6 Sources of Disturbances.- 5. Emergency Control.- 5.1 General.- 5.2 Measures to Prevent Frequency Collapse.- 5.3 Measures to Prevent Voltage Collapse.- 5.4 Prevention of Overloads and Instability.- 5.5 Prevention of Power Disparity.- 5.6 Operation of Generators in Emergency Conditions.- 5.7 Restoration Procedures.- 6. Grid Failures Case Studies and 'Defence' Plan Against Failures.- 6.1 General.- 6.2 Case Studies.- 6.3 EDF's 'Defence' Plan Against Major Disturbances..- 7. Effects of Grid Disturbances on Power Station and Consumer Equipment.- 7.1 General.- 7.2 Effects of Low Frequency Operation on Power Station Equipment.- 7.3 Effects of Low Frequency Operation on System Load.- 7.4 High Frequency Operation During Light Load Periods.- Appendix 1: Dispatching and ControlFunctions at Various Levels.- Appendix 2.- Operating Principles of North American Electric Reliability Council (NERC).- Most Common Terms Used in Power System Operation.