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Adaptive DC-link voltage controlled LC coupling hybrid active power filters for reactive power compensation
Chi Seng LAM1; Man Chung WONG2; Wai Hei CHOI2; Ying Duo HAN
2014-02-27
Rights HolderUNIVERSITY OF MACAU
Date Available2014-02-27
Countrythe United States
Subtype发明专利
Contribution Rank1
Abstract

An adaptive dc-link voltage controlled LC coupling hybrid active power filter (LC-HAPF) for reactive power compensation includes : two dc capacitors to provide dc-link voltage; a three-phase voltage source inverter to convert dc-link voltage into compensating voltages; three coupling LC circuits to convert compensating voltages into currents; and an adaptive dc voltage controller with reactive power compensation control algorithm. The control algorithm includes : first, calculating required minimum dc-link voltage in each phase with respect to loading reactive power; three-phase required minimum dc-link voltage will be maximum one among their minimum values; compare it with predetermined voltage levels to determine final reference dc-link voltage. A dc-link voltage feedback P/PI controller outputs dc voltage reference compensating currents. An instantaneous power compensation controller outputs reactive reference compensating currents. The final reference compensating currents will be sum of them. A PWM circuit provides LC-HAPF adaptive dc-link voltage control and dynamic reactive power compensation.

Application Date2012-08-22
Patent NumberUS20140055104A1
Language英语
Status已授权
Application NumberUS13591266
Open (Notice) NumberUS20140055104A1
Fulltext Access
Document TypePatent
CollectionINSTITUTE OF MICROELECTRONICS
Affiliation1.澳門大學微電子研究院
2.澳門大學科技學院電機及電腦工程系
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Chi Seng LAM,Man Chung WONG,Wai Hei CHOI,et al. Adaptive DC-link voltage controlled LC coupling hybrid active power filters for reactive power compensation. US20140055104A1[P]. 2014-02-27.
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