MODELING AND OPTIMIZING A PASSIVE EMI FILTER TO ATTENUATE COMMON-MODE CURRENTS AT HIGH FREQUENCY IN A THREE-PHASE ADJUSTABLE-SPEED AC MOTOR DRIVE

被引:0
作者
Jettanasen, Chaiyan [1 ]
机构
[1] King Mongkuts Inst Technol Ladkrabang, Fac Engn, Bangkok 10520, Thailand
来源
INTERNATIONAL JOURNAL OF INNOVATIVE COMPUTING INFORMATION AND CONTROL | 2012年 / 8卷 / 10A期
关键词
AC motor drive; Common mode current; Electromagnetic compatibility; Optimization; Passive EMI filter; CONVERTERS; INVERTER; DESIGN; VOLTAGE; SYSTEM;
D O I
暂无
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
This paper proposes a novel optimization approach of a passive electromagnetic interference (EMI) filter using two-port network technique to reduce or minimize common-mode (CM) conducted noise emissions in a three-phase adjustable-speed AC motor drive. This parasitic current is generally generated by a Pulse Width Modulation (PWM) inverter, an essential part in adjustable-speed AC motor drive systems widely used in many industrial and/or avionic applications, and causes severe EMI problems, in particular at high frequencies (HF); this restricts power electronic drive's evolution. The proposed EMI filter is designed by optimizing its elements values by taking into account real impedances of each part of the considered system. This approach is contrary to commercial EMI filters typically designed by considering internal impedance of disturbance source and load, equal to 50 ohm/50 ohm, 0.1 ohm/100 ohm or 100 ohm/0.1 ohm. These do not represent the real impedances of the system; thus employing the latter EMI filter would make EMI minimization less effective. The efficiency of the proposed optimization method will be confirmed by comparing the minimized CM current spectra, in frequency domain, to an applied normative level such as EN55011 or DO-160D standards.
引用
收藏
页码:6629 / 6642
页数:14
相关论文
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[21]   EMI Modeling Method and Active Suppression Technology of Common-Mode Electromagnetic Interference in Three-Phase Two-Level Inverter Based on Four-Bridge Topology [J].
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