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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:Ke-Wei Cai,Ning-Hui Wang,Guo-Feng Li.A Novel Control Strategy of PWM Rectifier with LCL Filter Under Unbalanced Grid Condition[J].Journal of Harbin Institute Of Technology(New Series),2014,21(1):92-97.DOI:10.11916/j.issn.1005-9113.2014.01.013.
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A Novel Control Strategy of PWM Rectifier with LCL Filter Under Unbalanced Grid Condition
Author NameAffiliation
Ke-Wei Cai Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024,China 
Ning-Hui Wang Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024,China 
Guo-Feng Li Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024,China 
Abstract:
The paper presents a successful design and good result of grid voltage feed-forward control strategy with no damping regulator of LCL filter applied in Three-phase Pulse Width Modulation(PWM) rectifier under unbalance grid condition for renewable energy processing. It is demonstrated that the closed-loop current control is decoupled with the grid voltage feed-forward control, and good waveform of grid current with low order harmonics is obtained under unbalance grid condition. This novel strategy is simple and reliable, applied with PI regulator but no resonant controller in α, β two-phase stationary frame. Moreover, the results of experiment and simulation are also illustrated to validate the novel strategy well applied in the closed-loop current control system under unbalanced grid condition.
Key words:  LCL filter  no damping control  grid voltage feed-forward control  renewable energy processing
DOI：10.11916/j.issn.1005-9113.2014.01.013
Clc Number:TM92
Fund:

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