A COMPOSITE NONLINEAR CONTROLLER FOR POWER SYSTEMS WITH STATIC SYNCHRONOUS COMPENSATORS UNDER EXTERNAL DISTURBANCES

Authors

  • Kruwan Wongsurith Lecturer, Faculty of Engineering, Kasem Bundit University, Bangkok, 10250,
  • Piraporn Konkhum Lecturer, Faculty of Engineering, Kasem Bundit University, Bangkok, 10250
  • Suwit Wongkumsin Lecturer, Faculty of Engineering, Kasem Bundit University, Bangkok, 10250
  • Adirak Kanchanaharutha Lecturer, Department of Electrical Engineering, Rangsit University, Patumthani, 12000
  • Somchai Poonyaniran Lecturer, Department of Electrical Engineering, Rangsit University, Patumthani, 12000
  • Pinit Ngamsom Lecturer, Department of Mechanical Engineering, Rangsit University, Patumthani, 12000

Keywords:

Backstepping control, STATCOM, generator excitation, disturbance observer.

Abstract

This paper concentrates on the design of a composite nonlinear stabilizing state feedback control for power systems with static synchronous compensator (STATCOM) with a combined improved backstepping strategy and nonlinear disturbance approach. The disturbance observer is employed to estimate unavoidably external disturbances. Thus, the resulting controller enables us to successfully not only stabilize the system stability but also reject undesired external disturbances. To indicate the effectiveness and superiority of the developed process, numerical simulation results are given to show that the proposed composite control law can improve dynamic performances, rapidly suppress system oscillations of the overall closed-loop dynamics, and outperform a conventional backstepping control technique despite the presence of inevitably external disturbances

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Published

2020-05-06

Issue

Vol. 10 No. 1 (2020): January-April 2563

Section

บทความวิจัย (Research Article)

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            The article has been published in Kasem Bundit Engineering Journal (KBEJ) is the copyright of the Kasem Bundit University. Do not bring all of the messages or republished except permission from the university.

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