Decentralized Adaptive Digital Control for Multi-machine Excitation Systems with Static Var Compensator

In this paper, a decentralized discrete adaptive quantized control (DDQC) method has been proposed for multi-machine excitation system (MES) with static var compensator (SVC). The mathematical model of the power system is studied in discrete-time form, the digital control scheme is realized by using the improved hysteresis quantizer, which can discretize the control signals in amplitude and time scale. Then, by using the discrete first-order low-pass filter (FLF), the complexity of discrete backstepping control method is reduced. Finally, the stability analysis proves that the trace error converges to the compact set and the simulation results illustrate the effectiveness of the control method.

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