The unified power quality conditioner: The integration of series- and shunt-active filters

被引:606
作者
Fujita, H [1 ]
Akagi, H [1 ]
机构
[1] Okayama Univ, Dept Elect Engn, Okayama 700, Japan
关键词
active filters; harmonics; power conditioners; power quality; voltage flicker; voltage imbalance;
D O I
10.1109/63.662847
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
This paper deals with unified power quality conditioners (UPQC's), which aim at the integration of series-active and shunt-active filters. The main purpose of a UPQC is to compensate for voltage flicker/imbalance, reactive power, negative-sequence current, and harmonics. In other words, the UPQC has the capability of improving power quality at the point of installation on power distribution systems or industrial power systems. This paper discusses the control strategy of the UPQC, with a focus on the flow of instantaneous active and reactive powers inside the UPQC. Experimental results obtained from a laboratory model of 20 kVA, along with a theoretical analysis, are shown to verify the viability and effectiveness of the UPQC.
引用
收藏
页码:315 / 322
页数:8
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