Excitation Control of Synchronous Generators Using Adaptive Regulators Part I-Theory and Simulation Results

A recent trend in power system operation is towards computerised control and management. One class of digital adaptive regulators called self- tuning regulators is suitable for this purpose. In synchronous generator control a conflict arises between the small sampling interval necessary to track the dynamics and large computation time required by the process computer. A dual-rate sampling model is suggested to alleviate this problem. A class of self-tuning regulators called Dual-rate Sampling Self-Tuning regulators which use a dual-rate sampling model of the power system are described in this paper. Simulation results obtained are used to evaluate the merits, usefulness and viability of the proposed regulator.