电器与能效管理技术 ›› 2021, Vol. 0 ›› Issue (7): 61-65.doi: 10.16628/j.cnki.2095-8188.2021.07.011

• 检测与试验 • 上一篇    下一篇

带有多磁路电源供电的电波暗室设计与屏蔽效能仿真

宋子豪1, 吴桂初1,2, 章上聪1,2, 陈冲1,2   

  1. 1.温州大学 浙江省低压电器工程技术研究中心, 浙江 温州 325035
    2.温州大学 乐清工业研究院, 浙江 温州 325035
  • 收稿日期:2021-03-10 出版日期:2021-07-30 发布日期:2021-10-13
  • 作者简介:宋子豪(1996—),男,硕士研究生,研究方向为电器智能化。|吴桂初(1957—),男,教授,研究方向为智能化电器、智能制造。|章上聪(1988—),男,实验师,研究方向为电气技术、EMC测试技术。

Design and Shielding Effectiveness Simulation of Anechoic Chamber with Multi-Magnetic Power Source

SONG Zihao1, WU Guichu1,2, ZHANG Shangcong1,2, CHEN Chong1,2   

  1. 1. Engineering Technology Research Center of Low Voltage Apparatus of Zhejiang Province,Wenzhou University, Wenzhou 325035, China
    2. Technology Institute of Wenzhou University in Yueqing, Wenzhou 325035, China
  • Received:2021-03-10 Online:2021-07-30 Published:2021-10-13

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。

关键词: 多磁路电源, 电波暗室, 屏蔽效能, 电磁兼容

Abstract:

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.

Key words: multi-magnetic circuit power source, anechoic chamber, shielding effectiveness, EMC

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