Strict decentralized nonlinear controller for synchronous generator set

Abstract

Three kinds of strict decentralized nonlinear controllers for synchronous generator set, including the excitation controller, governor controller, excitation and governor coordinated controller, are designed in the paper. The proposed nonlinear controllers are all based on complex model of generator set without ignoring the transient saliency of generator, and they all only feedback local measurements of the generator set. In the paper, the structural model of generator set is used to construct the relation between the local immeasurable variables of generator and the local measurements of generator set, and thus it is easy to transform the immeasurable variables into local measurements when designing strict decentralized controllers. Meanwhile, the ANN-inversion method is used to design the nonlinear controller in the paper. Finally, the simulation of the proposed strict decentralized nonlinear excitation controller and coordinated controller is given, and the results demonstrate the validity of the proposed controller