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Investigation of SSR characteristics of unified power flow controller

Padiyar, KR and Prabhu, Nagesh (2005) Investigation of SSR characteristics of unified power flow controller. In: Electric Power Systems Research, 74 (2). pp. 211-221.


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The unified power flow controller (UPFC) is the most versatile flexible ac transmission system (FACTS) controller which can be used to control active and reactive power flows in a transmission line in addition to the bus voltage. The active series compensation is provided by injecting series reactive voltage. The voltage at the two ports of UPF Care regulated by control of shunt current and series real voltage. It also has several operating control modes such as voltage and power regulation, line impedance compensation, etc. This paper presents the analysis and study of sub-synchronous resonance (SSR) characteristics of UPFC. The various combination of operating modes of shunt and series converters are considered for investigating their effect on SSR characteristics.The analysis of SSR with UPFC is carried out based on frequency domain method, eigen value analysis and transient simulation. The frequency domain method considers D-Q model of UPFC for the computation of damping torque for quick check in determining torsional mode stability.The study is performed on IEEE First Benchmark Model (FBM).

Item Type: Journal Article
Publication: Electric Power Systems Research
Publisher: Elsevier Science SA
Additional Information: Copyright for this article belongs to Elsevier.
Keywords: FACTS;Voltage source converter (VSC);UPFC;SSR;Damping torque
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 20 May 2005
Last Modified: 19 Sep 2010 04:19
URI: http://eprints.iisc.ac.in/id/eprint/3238

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