Nonlinear adaptive decentralized stabilizing control of multimachine systems

摘要

This work develops a design approach to a nonlinear adaptive control system with unknown parameters and applies it to the excitation control of power systems. The adaptive control strategy is formed by an adaptive backstepping way without involving transformation of linearization. The characteristic of the controller is that which involves a dynamic estimator of parameters. A general expression of nonlinear adaptive decentralized excitation control strategy for multimachine systems is acquired, in which all of the feedback variables are local measurements. Simulation results on a 6-machine, 22-bus system manifest the validity of the nonlinear adaptive controllers.