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Control schemes for equalization of capacitor voltages in neutral clamped shunt compensator

Mishra, Mahesh, Joshi, Avinash, & Ghosh, Arindam (2003) Control schemes for equalization of capacitor voltages in neutral clamped shunt compensator. IEEE Transactions on Power Delivery, 18(2), pp. 538-544.

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Abstract

Voltage imbalance in capacitors is a well-known problem in compensator topologies which use two or more capacitors. This imbalance may exist even if the load does not contain any DC component, due to practical factors. However, when the load contains a DC part, the voltage imbalance problem becomes critical. In this paper, a two-quadrant chopper has been used to regulate the capacitor voltages in a two-capacitor compensator structure. Two different control strategies for the two-quadrant chopper to equalize the voltage of the capacitors have been proposed. The strategies are validated through detailed simulation studies. Experiments have also been carried out to validate the hysteresis control of chopper.

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56 citations in Scopus
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30 citations in Web of Science®

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ID Code: 37383
Item Type: Journal Article
DOI: 10.1109/TPWRD.2003.809684
ISSN: 0885-8977
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Deposited On: 05 Oct 2010 14:06
Last Modified: 29 Feb 2012 23:19

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