A Simplified Minimum DC-Link Voltage Control Strategy for Shunt Active Power Filters

被引：14
作者：
Wang, Yu [1 ]
Wang, Yuewu [2 ]
Chen, Si-Zhe [1 ]
Zhang, Guidong [1 ]
Zhang, Yun [1 ]
机构：
[1] Guangdong Univ Technol, Sch Automat, Guangzhou 510006, Guangdong, Peoples R China
[2] Harbin Inst Technol, Sch Elect Engn & Automat, Harbin 150001, Heilongjiang, Peoples R China
来源：
ENERGIES | 2018年 / 11卷 / 09期
基金：
中国国家自然科学基金;
关键词：
active power filter; minimum DC-link voltage; compensating current characteristic; compensation performance; simplified DC-link voltage control strategy; SYSTEMS; PERFORMANCE; DESIGN;
D O I：
10.3390/en11092407
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The active power filter (APF) is a popular electrical device to eliminate harmonics in power systems. The rational design and effective control of DC-link capacitor voltage are important for implementing APF functions. In this study, the influences from the DC-link voltage on the APF compensating current characteristic and compensation performance are analyzed, and the reason to maintain DC-link voltage at a minimum value is investigated. On this basis, a simplified minimum DC-link voltage control strategy for APF is proposed. Compared with the existing DC-link voltage control strategies, the minimum DC-link voltage value in proposed strategy is only determined by the grid voltage and modulation ratio, reducing the calculation burden and the implementation difficulty in application, avoiding the interference from external parameters on the compensation effect. Additionally, the reference DC-link voltage varies at different values according to the grid voltage and modulation ratio. A shunt APF prototype is established and the experimental results verify the correctness and effectiveness of the analysis and proposed strategy.
引用
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页数：14
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