Stability analysis of a series active filter integrated with a double-series diode rectifier

被引：0
|
作者：
Srianthumrong, S [1 ]
Fujita, H [1 ]
Akagi, H [1 ]
机构：
[1] Tokyo Inst Technol, Tokyo 152, Japan
来源：
PESC 2000: 31ST ANNUAL IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-3 | 2000年
关键词：
D O I：
暂无
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 a harmonic current-free ac/dc power conversion system which is characterized by the integration of a small-rated series active filter with a large-rated double-series diode rectifier. The stability of the active filter based on feedback control is discussed theoretically, taking into account delay time in the control circuit. As a result, it is revealed that the delay time may produce a bad effect on stability, especially when the power conversion system is installed on a stiff power system with low system inductance. The authors propose a viable way of reducing the effect of delay time on the system stability. Analysis in the frequency domain enables us to know how much the system stability is improved in terms of gain and phase margins, A switching-ripple filter is designed to obtain good filtering performance without affecting the system stability Experimental results obtained from a 20-kW laboratory system verify the validity of the developed theory, and confirm the viability and effectiveness of the proposed control circuit.
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收藏
页码：1305 / 1311
页数：7
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