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Filter Optimization for Grid Interactive Voltage Source Inverters

Channegowda, Parikshith and John, Vinod (2010) Filter Optimization for Grid Interactive Voltage Source Inverters. In: IEEE Transactions on Industrial Electronics, 57 (12). pp. 4106-4114.

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Abstract

Higher order LCL filters are essential in meeting the interconnection standard requirement for grid-connected voltage source converters. LCL filters offer better harmonic attenuation and better efficiency at a smaller size when compared to the traditional L filters. The focus of this paper is to analyze the LCL filter design procedure from the point of view of power loss and efficiency. The IEEE 1547-2008 specifications for high-frequency current ripple are used as a major constraint early in the design to ensure that all subsequent optimizations are still compliant with the standards. Power loss in each individual filter component is calculated on a per-phase basis. The total inductance per unit of the LCL filter is varied, and LCL parameter values which give the highest efficiency while simultaneously meeting the stringent standard requirements are identified. The power loss and harmonic output spectrum of the grid-connected LCL filter is experimentally verified, and measurements confirm the predicted trends.

Item Type: Journal Article
Additional Information: Copyright 2010 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: Ferrite filters; loss measurement; power filters; pulsewidth-modulated inverters
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 13 Dec 2010 09:52
Last Modified: 13 Dec 2010 09:52
URI: http://eprints.iisc.ernet.in/id/eprint/34458

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