Ultracapacitor Based Ride Through System for Control Power Supplies in High Power Converters

Vivek Ravi , Anand and John, Vinod (2010) Ultracapacitor Based Ride Through System for Control Power Supplies in High Power Converters. In: Sixteenth National Power Systems Conference (NPSC ), 15-17 December, 2010, Osmania University, Hyderabad..

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Abstract

High power converters are used in variable speed induction motor drive applications. Riding through a short term power supply glitch is becoming an important requirement in these power converters. The power converter uses a large number of control circuit boards for its operation. The control power supply need to ensure that any glitch in the grid side does not affect any of these control circuit boards. A power supply failure of these control cards results in shut down of the entire system. The paper discusses the ride through system developed to overcome voltage sags and short duration outages at the power supply terminals of the control cards in these converters. A 240VA non-isolated, bi-directional buck-boost converter has been designed to be used along with a stack of ultracapacitors to achieve the same. A micro-controller based digital control platform made use of to achieve the control objective. The design of the ultracapacitor stack and the bidirectional converter is described the performance of the experimental set-up is evaluated.

Item Type:	Conference Paper
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	11 Mar 2011 06:39
Last Modified:	11 Mar 2011 06:39
URI:	http://eprints.iisc.ac.in/id/eprint/35856

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