Research Article Open Access

Power Quality Improvement Using a Sliding Mode Control of a Series Active Filter

Theerayuth Chatchanayuenyong

Abstract

A sliding mode controller (SMC) for a three-phase series active filter was proposed to compensate voltage unbalances, suppress voltage sags and swells and hence improve the power quality of a three-phase ac system. The voltage unbalance compensation and regulation is only based on the positive sequence component decomposition of the supply voltage that is then adjusted to a rated value and used as the reference voltage for the sliding mode controller. This study also includes compensation algorithm, design equations and circuit design criteria. Simulation results ensure the concept and validity of the proposed control system.

American Journal of Applied Sciences
Volume 5 No. 8, 2008, 1029-1033

DOI: https://doi.org/10.3844/ajassp.2008.1029.1033

Submitted On: 4 October 2007 Published On: 31 August 2008

How to Cite: Chatchanayuenyong, T. (2008). Power Quality Improvement Using a Sliding Mode Control of a Series Active Filter. American Journal of Applied Sciences, 5(8), 1029-1033. https://doi.org/10.3844/ajassp.2008.1029.1033

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Keywords

  • Sliding mode control
  • series active filter
  • power quality improvement
  • voltage unbalance
  • voltage sags
  • voltage swells