Backstepping control for a class of power systems

  • Authors:

  • Chi Yiu Chan;Sing Kiong Nguang

  • Affiliations:

  • The Department of Electrical and Electronic Engineering. The University of Auckland, Auckland, New Zealand;The Department of Electrical and Electronic Engineering. The University of Auckland, Auckland, New Zealand

  • Venue:
  • Systems Analysis Modelling Simulation
  • Year:
  • 2002

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Abstract

In this paper, the problem of stabilizing a class of power systems is examined. The class of power systems under investigation is a generator connected to an infinite bus bar by a two-paralleled transmission lines. Based on the backstepping control design technique, a nonlinear stabilizer has been developed for a single machine system. Through simulation studies, we show that the nonlinear stabilizer performs much better than a LQR. This result is then extended to a two-machine system. The reason for considering a two-machine system is that controller design for a power system, which consists of more than two machines, is the same as for a two-machine system. The performance of the nonlinear stabilizer is again compared with that of a LQR. Again, via simulation studies, the nonlinear stabilizer is shown to have better performance than a LQR.