摘要
为了研究低压电器在电波暗室中EMC测试而引入多磁路系统供电,对电波暗室屏蔽效能的影响,通过新建电波暗室的仿真模型计算屏蔽效能,然后通过试验验证模型准确性,再利用所建立的仿真模型计算引入多磁路系统后对电波暗室屏蔽效能的影响。最后提出了在暗室周围新建一个屏蔽室用于存放多磁路系统,并将多磁路系统的控制部分分离出屏蔽室的方法,从而实现了在暗室中引入多磁路系统,同时避免产生高频电磁噪声的目的。
In order to study the influence of shielding effectiveness caused by introducing multi-magnetic circuit power source on anechoic chamber in a low-voltage apparatus in the EMC test.A simulation model for calculating the shielding effectiveness of an anechoic chamber is established and then the accuracy of the model is verified by experiments.Then the simulation model is used to calculate the influence of shielding effectiveness of anechoic chamber after a multi-magnetic circuit power source is introduced.A new shielding chamber around the anechoic chamber is proposed to store the multi-circuit magnetic system,and the control part of the multi-magnetic circuit system is separated from the shielding chamber.In this method a multi-magnetic circuit system is introduced into the chamber,but the high frequency electromagnetic noise is avoided.
作者
宋子豪
吴桂初
章上聪
陈冲
SONG Zihao;WU Guichu;ZHANG Shangcong;CHEN Chong(Engineering Technology Research Center of Low Voltage Apparatus of Zhejiang Province,Wenzhou University,Wenzhou 325035,China;Technology Institute of Wenzhou University in Yueqing,Wenzhou 325035,China)
出处
《电器与能效管理技术》
2021年第7期61-65,共5页
Electrical & Energy Management Technology
关键词
多磁路电源
电波暗室
屏蔽效能
电磁兼容
multi-magnetic circuit power source
anechoic chamber
shielding effectiveness
EMC
