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TITLE: A Selective Harmonic Amplification Method for Reduction of kVA Rating of Current Source Converters in Shunt Active Power Filters | |
Abstract—
This paper describes a new approach to the design of current-source converter (CSC)-based shunt active power ?lters (APFs) to reduce the converter kilovolt-ampere rating consider- ably. This design approach is called the selective harmonic ampli?- cation method (SHAM), and is based on the ampli?cation of some selected harmonic current components of CSC by the ac-side ?lter, and the CSC control system speci?cally designed fo r this purpose. The proposed SHAM has been implemented on a CSC-based APF fo r the elimination of 11th and 13th current harmonics of 12-pulse recti?er loads supplied from a medium-voltage underground cable. Simulation and ?eld test results have shown that SHAM can suc- cessfully be applied to a CSC-based APF fo r reduction of the con- verter kilovolt-ampere rating, thus making it a cost-competitive alternative to voltage-source-converter-based APFs traditionally used in industry applications.
Keywords— Active filters, harmonic distortion, pulsewidth- modulated power converters, power quality (PQ) |
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