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Application of ZnO Varistor Protection to Capacitors of Artificially Commutated Inverter in MTDC System

Manohar, Premila and Chandrasekharaiah, HS (1991) Application of ZnO Varistor Protection to Capacitors of Artificially Commutated Inverter in MTDC System. In: IEEE Transactions on Power Systems, 6 (1). pp. 356-363.

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Abstract

The dynamic analysis of a mesh type multiterminal HVDC (m) transmission system including an artificially commutated inverter (ACI) with varistor protected series capacitors is carried out using digital simulation technique. The study shows that the varistor protection is feasible and improves the performance of normal rated inverters which connect weak ac systems. It reduces the magnitude of dynamic overvoltage and the peak direct current at the ACI during abnormal conditions resulting in a significantly improved dynamic performance of the MTDC system.

Item Type: Journal Article
Additional Information: ©1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: DC transmission;Digital simulation;Artificial Commutation;Transients;Zinc oxide varistor
Department/Centre: Division of Electrical Sciences > High Voltage Engineering (merged with EE)
Date Deposited: 11 Jan 2007
Last Modified: 19 Sep 2010 04:21
URI: http://eprints.iisc.ernet.in/id/eprint/3964

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