Tracking constrained adaptive power system stabiliser

The paper deals with the critical parameter tracking problem which arises when online identification strategies are used to model the dynamics of the power system. A tracking constrained identification scheme is proposed to achieve a smooth model transition under operation schedule change or disturbances. Based on the identified model, an adaptive PSS is designed by using an improved self-optimising pole shifting control algorithm and tested on a multimachine power system. Behaviour of the adaptive PSS and its coordination ability with other PSSs in the system are discussed and demonstrated