Design, control, and implementation of LCL-filter-based shunt active power filters

Yi Tang, Poh Chiang Loh, Peng Wang, Fook Hoong Choo, Feng Gao, Frede Blaabjerg

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

10 Citations (Scopus)

Abstract

This paper concentrates on the design, control and implementation of an LCL-filter-based shunt active power filter (SAPF), which can effectively compensate harmonic currents produced by nonlinear loads in a three-phase three-wire power system. The use of LCL-filter at the output end of SAPF offers superior switching harmonic suppression with much reduced size of passive filtering elements. This allows SAPF to generate high slew rate output currents that can closely track the targeted reference. Moreover, smaller inductance directly translates into less harmonic voltage drop on the passive output filter, which can minimize the possibility of over modulation, especially for relatively low dc-link voltage (or high modulation index) of SAPF. Some critical issues, like selection of LCL parameters, interactions between resonance damping and harmonic compensation, bandwidth design of closed-loop control system, and active damping implemented with fewer current sensors are all addressed here. An analytical design example is finally presented, being supported with experimental results, to verify its effectiveness and practicality.
Original languageEnglish
Title of host publicationProceedings of the 26th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2011)
Number of pages8
PublisherIEEE Press
Publication dateMar 2011
Pages98-105
ISBN (Print)978-1-4244-8084-5
DOIs
Publication statusPublished - Mar 2011
Event26th Annual IEEE Applied Power Electronics Conference and Exposition - Fort Worth Convention Center, Fort Worth, United States
Duration: 6 Mar 201110 Mar 2011

Conference

Conference26th Annual IEEE Applied Power Electronics Conference and Exposition
LocationFort Worth Convention Center
Country/TerritoryUnited States
CityFort Worth
Period06/03/201110/03/2011

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