Three-phase PWM rectifier control under non-ideal grid voltage based on repetitive compensator

WANG Chao; NIU Xiao-bing; ZHU Jing-wei; SU Da-yong

doi:10.16411/j.cnki.issn1006-7736.2019.02.013

Journal of Dalian Maritime University >

2019 , Vol. 45 >Issue 2: 93 - 100

DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2019.02.013

Three-phase PWM rectifier control under non-ideal grid voltage based on repetitive compensator

WANG Chao ,
NIU Xiao-bing ,
ZHU Jing-wei ,
SU Da-yong

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（Marine Electrical Engineering College, Dalian Maritime University, Dalian 116026, China）

Received date: 2019-01-08

Revised date: 2019-02-22

Online published: 2019-02-22

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Abstract

Under the non-ideal grid voltage with harmonic and unbalanced, the three-phase PWM rectifier with conventional control will produce distorted AC current and fluctuating DC bus voltage, which will further deteriorate the operation status of the grid and cause the performance degradation of the postbus equipment. To solve this problem, a new control strategy was proposed by combining the superposition theorem and the repetitive control principle. According the proposed control strategy, the fundamental current was regulated by power control in double reference frame, and the harmonic current was controlled by repetitive compensator, so as to achieve the control objectives of sinusoidal AC current and smooth DC bus voltage. Experiments show that the proposed method has excellent performance.

Key words： three-phase pulse width modulation(PWM); power rectifier; repetitive control; harmonic suppression; direct power control

Cite this article

WANG Chao , NIU Xiao-bing , ZHU Jing-wei , SU Da-yong . Three-phase PWM rectifier control under non-ideal grid voltage based on repetitive compensator[J]. Journal of Dalian Maritime University, 2019 , 45(2) : 93 -100 . DOI: 10.16411/j.cnki.issn1006-7736.2019.02.013

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