Evolving real time controls under restructuring

At this time, the only automatic control employed by the control center is the slow generation control to match the changing load (AGC). Several markets for this ancillary service have been tried without changing the control design, but a bilateral market (e.g. for self-service) requires the redesign of the controls. Similarly, the development of a market for voltage control requires new control design. In the case of stability limited systems, some new controllers like special protection schemes (SPS) can help operation that is closer to the limits of the system. In this presentation, we present new ideas on slow real time controls by the control center that can provide frequency and voltage control under market conditions. Also, faster controls utilizing SPS or RAS that can provide better stability control is described.