Optimization of Parameter set for STATCOM Control System


Vural A. M. , Bayindir K. C.

2010 IEEE PES Transmission and Distribution Conference and Exposition - Smart Solutions for a Changing World, Louisiana, United States Of America, 19 - 22 April 2010 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1109/tdc.2010.5484230
  • City: Louisiana
  • Country: United States Of America

Abstract

STATCOM controlled power system shows highly non-linear characteristics. In such a structure, linear controllers are easy to apply but difficult to tune. Fine tuning of controller parameters is necessary to meet transient performance requirements. In this paper, control system parameters of a STATCOM which is constructed from two six-pulse voltage source based converters are optimized by Simplex algorithm which is a non-linear and non-gradient method. System objective function to be minimized is based on a performance index and expressed in terms of measured and desired values of system variables. After optimization, performance of STATCOM control system consisting of two PI controllers and two leag/lag compensators has been tested and verified through a number of simulation studies investigating step-response performance. Precise and quick responses have been observed with optimized parameters.