Research Article Open Access

Design of Robust Decentralized Control for UPFC Controller Based on Structured Singular Value

Seyed Abbas Taher, Shahabeddin Akbari, Ali Abdolalipour and Reza Hematti

Abstract

New approach based on structured singular value (µ-synthesis) was proposed for the robust decentralized unified power flow controller (UPFC) design. To achieve decentralization, using the Schauder fixed point theorem the synthesis and analysis of multi-input multi-output (MIMO) control system translated into a set of equivalent multi-input single-output (MISO) control system. Power systems similar to other industrial plants contain different kinds of uncertainties which should be considered in controller design procedure. For this reason, the idea of µ-synthesis technique being used for designing of UPFC controllers. The proposed µ-based controller had a decentralized scheme and advantage of a decentralized controller design reduction in the controller complexity and suitability for practical implementation. The effectiveness of the proposed control strategy evaluated under operating conditions on damping of low frequency oscillations in comparison with the classical controller to demonstrate its robust performance through nonlinear time simulation and some performance indices.

American Journal of Applied Sciences
Volume 5 No. 10, 2008, 1269-1280

DOI: https://doi.org/10.3844/ajassp.2008.1269.1280

Submitted On: 9 December 2007 Published On: 31 October 2008

How to Cite: Taher, S. A., Akbari, S., Abdolalipour, A. & Hematti, R. (2008). Design of Robust Decentralized Control for UPFC Controller Based on Structured Singular Value . American Journal of Applied Sciences, 5(10), 1269-1280. https://doi.org/10.3844/ajassp.2008.1269.1280

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Keywords

  • Unified power flow controller
  • decentralized control
  • µ-synthesis
  • Flexible Ac Transmission Systems (FACTS)
  • robust control
  • structured singular value