Power System Stabilizer based on a Neural Supervisor from a Local Model Network

C. Tavares-Da-Costa Jr., J.A.L. Barreiros, A.M.D. Ferreira, and W. Barra Jr. (Brazil)

Keywords

Power System Control, Power System Stabilizers, Neural Networks, Local Model Networks, Excitation Control.

Abstract

This work proposes the design of a Power System Stabilizer using a Neural Supervisor trained from a Local Model Network. For any given system operation point, represented by the active and reactive power in the synchronous generator output, the neural supervisor can supply a set of parameters that completely define a linear model of the power system. Then, a pole-placement method is used to obtain a discrete-time controller to be used in the actual system operating condition, improving the power system dynamic stability. Simulation results confirm the good performance of this approach when compared with a fixed-parameter PSS and a self-tuning stabilizer.

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