Generation control for deregulated electric power systems

Open access transmission brings the need and the opportunity to make generation delivery changes. The predominant delivery control now used presents difficulties. It has a territorial control area structure with continuous power flow telemetering at area boundaries. Community control is proposed. It relies on the inherent primary control of generator governors and does away with secondary control of boundary power flow and area frequency bias. In their place, delivery period energy and system time error are used. Absent vertical utility structures, a central control contains overall system behavior and manages community ancillary load matching requirements. Community generators follow governor set-point trajectories. Actual and contract differences for fixed and variable energy are reconciled without difficulty for each delivery period. Control area systems will find community control a large, but now due, change. Systems with a central control may find community features useful. Developing systems may wish to have a community structure.