Shunt Isolated Active Power Filter with Common DC Link in Urban Rail Transit System

被引：0
|
作者：
Liu, Hao [1 ]
Zheng, Zedong [1 ]
Li, Chi [1 ]
Liu, Jiye [1 ]
Li, Yongdong [1 ]
机构：
[1] Tsinghua Univ, State Key Lab Power Syst, Dept Elect Engn, Beijing, Peoples R China
来源：
2019 IEEE VEHICLE POWER AND PROPULSION CONFERENCE (VPPC) | 2019年
基金：
中国国家自然科学基金;
关键词：
Active power filter (APF); High frequency power electronics transformer (HFPET); soft switching; zero sequence circulating current (ZSCC); RESONANT CONVERTER; DESIGN;
D O I：
10.1109/vppc46532.2019.8952174
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：
In urban rail transit, there is a large quantity of harmonics brought by diode rectifiers, and shunt active power filters (APFs) are an effective method of harmonics rejection. Traditional shunt APFs work with a dedicated DC link, while those with a common DC bus but using non-isolated topologies bring serious problems of zero-sequence circulating current (ZSCC). This paper puts forward a novel isolated APF with a common DC link based on existing diode rectifiers in urban rail transit. To this end, harmonics brought by diode rectifiers are reduced while rejecting ZSCC. Finally, simulation and experiment using a 1-kW prototype converter verify the feasibility and validity.
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页数：6
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