A Novel DC-link Voltage Control Method for Comprehensive Power Quality Compensation Inverters

被引:0
|
作者
Zhu, Gangwei [1 ]
Han, Jinwen [1 ]
Wang, Yong [1 ]
机构
[1] Shanghai Jiao Tong Univ, Sch Elect Informat & Elect Engn, Shanghai, Peoples R China
关键词
power quality compensation; dc-link voltage ripple; current tracking accuracy; PERFORMANCE;
D O I
10.1109/IPEMC-ECCEAsia48364.2020.9368156
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The comprehensive power quality compensation inverters (PQ inverters) combine multiple functions of reactive power compensation, harmonic suppression and three-phase unbalanced compensation, making the dc-link voltage fluctuation of PQ inverters much more complicated than traditional grid-connected inverters. In this paper, the mathematical relationship between the frequency of dc-link voltage ripple and the component of the output currents in PQ inverters is deduced and presented. Furthermore, a novel dc-link voltage control method for PQ inverters is proposed, in which a trade-off between current tracking accuracy and dc-link voltage stability is achieved and the dc-link voltage fluctuation is well suppressed. Finally, simulation and experimental results are presented to verify the effectiveness of the proposed method.
引用
收藏
页码:2854 / 2860
页数:7
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