MIMO model free adaptive wide area power system stabilizer design

Since the structure and operating conditions of power systems change with time,wide-area power system stabilizers(WAPSS)with fixed parameters cannot perform well for all conditions.In addition,when several WAPSSs are installed in a system,they must be well coordinated.This paper describes a model free adaptive control method(MFAC)multi-input multi-output(MIMO)WAPSS designs.An MFAC method for MIMO wide area damping control is given with the relevant parameter settings.Simulation results in local and large scale power grids show that this MIMO-MFAC-WAPSS system can adapt to system changes,efficiently damp inter-area oscillations and coordinate multiple controllers.