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浙江大学学报(工学版)
浙江大学学报(工学版)
机械与电气工程     
三相脉冲调制变流器驱动电源电磁兼容性能提升
王冕, 曲东昌, 陈国柱
浙江大学 电气工程学院,浙江 杭州 310027
EMC performance improvement of auxiliary power supplies in three phase PWM converters
WANG Mian, QU Dong chang, CHEN Guo zhu
College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
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摘要：

针对三相脉冲宽度调制（PWM）变流器中开关管驱动电源受到主电路电磁干扰（EMI）的问题进行分析,研究如何提升电磁兼容（EMC）性能.对三相变流器中由于高速开关引起的高频EMI源进行分析与定量的计算,建立三相变流器及驱动电源的高频传导模型.通过建立高频模型,指出EMI源对驱动电源造成的干扰传导通路有3条：主电路与驱动电源间的传导通路Ⅰ和Ⅱ、驱动电源间的传导通路Ⅲ,利用高频模型得到3条传导通路的高频等效电路和相应的传递函数,根据传递函数提出抑制3种干扰、提升驱动电源EMC性能的一般性方法.仿真与实验结果表明,驱动电源间的干扰是主要干扰,通过在驱动电源负载端并联电容的方法可以大大减小干扰.
Abstract:

Auxiliary power supplies of the power electronic devices in three phase pulse width modulation (PWM) converters were interfered by electro magnetic interfere (EMI) noises. Electro magnetic compatibility (EMC) performance improvement of the power supplies was analyzed. The high frequency EMI source caused by high frequency switching devices of the three phase converter was quantitatively analyzed and calculated. The high frequency models of the converter and its auxiliary power supplies were given in detail. Three EMI conduction routes were illustrated based on the high frequency modeling. Route Ⅰ and Ⅱ are between main circuit and the supplies. Route Ⅲ is between different supplies. The equivalent circuits and the corresponding transfer functions of the three conduction routes were obtained through the high frequency model. Methods to suppress the interferences and improve the EMC performance of the auxiliary power supplies were proposed. The simulation and experimental results validate that interference between different supplies is the main EMI noise and can be greatly reduced through paralleled capacitors on the output of the power supplies.
出版日期: 2016-04-01
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基金资助:

国家自然科学基金资助项目（51177147）；浙江省重点科技创新团队资助项目（2010R50021）.
通讯作者: 陈国柱，男，博导.ORCID: 0000 0002 4565 090X.     E-mail: gzchen@zju.edu.cn
作者简介: 王冕（1990—），男，博士生，从事新能源发电大功率变换的研究.ORCID: 0000 0002 0104 0886. E-mail: wzcj@zju.edu.cn
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引用本文:

王冕, 曲东昌, 陈国柱. 三相脉冲调制变流器驱动电源电磁兼容性能提升[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2016.04.009.

WANG Mian, QU Dong chang, CHEN Guo zhu. EMC performance improvement of auxiliary power supplies in three phase PWM converters. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2016.04.009.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2016.04.009    或    http://www.zjujournals.com/eng/CN/Y2016/V50/I4/657

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