Title: Transient stability improvement of power system using fuzzy operated steam diversion valve

Authors: Sunil Bhat, T.S. Bhatti, D.P. Kothari

Addresses: Electrical Engineering Department, Visvesvaraya National Institute of Technology, South Ambazari Road, Nagpur – 440 010, India. ' Centre for Energy Studies, Indian Institute of Technology, Hauz Khas, New Delhi – 110 016, India. ' Vellore Institute of Technology University, Tamil Nadu – 632 014, India

Abstract: This paper proposes a fuzzy based steam diversion valve to divert the steam to a storage tank during the occurance of a fault in a power system in order to improve stability of the system. The advantages of this technique over fast valving are discussed. The rate of opening and closing of valve are decided by the fuzzy controller. The valve operation is coordinated with fuzzy based braker. The technique is demonstrated for a single machine infinite bus system as well as four generators-ten bus multimachine system.

Keywords: transient stability; fast valving; fuzzy control; multimachine systems; power systems; steam diversion valves; storage tanks; infinite bus systems.

DOI: 10.1504/IJPEC.2010.037628

International Journal of Power and Energy Conversion, 2010 Vol.2 No.3, pp.191 - 201

Received: 14 Sep 2009
Accepted: 27 Oct 2009
Published online: 20 Dec 2010 *

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