MIMO Decentralized Nonlinear Control of Generator and Turbine To Enhance Transient Stability of Power System

Abstract

In this paper, deoentralized feedback linearizing excitation and governor control, a kind of decentralized nonlinear control, in multi-machine power system is proposed to improve transient stability, and a local observation algorithm of the postfault equilibrium is also explored. Simulation results show that, it can improve the transient stability of the multi-machine power system to a great extent and enlarge the stable operating region even comparing to the decentralized feedback linearizing excitation control, and its adaptive ability to the changing postfault operating conditions is also verifiod.