A SELF-TUNING GENERALIZED PREDICTIVE POWER-SYSTEM STABILIZER

This paper presents a new self-tuning stabilizer for enhancement of th e dynamic stability in power systems. An adaptive control algorithm tr acks the system operating conditions by using a least-squares identifi cation technique and the controller is synthesized via a generalized p redictive control scheme. The stabilizer proposed is evaluated by comp uter simulation of a single-machine system and the influence of its ma in design parameters is analysed. The same scheme is then applied to a multi-machine equivalent of the Southern Brazil power system, The res ults obtained in the simulation tests for both systems indicate that t he proposed scheme can be applied to synthesize power system stabilize rs. (C) 1998 Elsevier Science Ltd.