Decentralized control for multimachine power system: A new approach

In this paper, a decentralized control problem is considered for multimachine power system. First, a novel mathematical model of multimachine power systems is developed. The main characteristic of this model is that interactions between generators and changes in operating conditions are represented by time-varying parameters. Second, it develops a decentralized controller for the transient stabilization and voltage regulation. The methodology adopted is based on backstepping design strategy. Case studies are achieved in a two-area four machine power system to verify the effectiveness of the approach. Simulation results show that the proposed approach gain much priority over traditional AVR/PSS in damping power oscillation, and improving voltage regulation.