摘要
针对电力电子噪声源的电磁兼容分析,本文基于Mardiguiana噪声分离网络提出一种新网络并对其特性进行了理论和实验研究。结果表明,新网络的插入损耗和噪声抑制性能有明显提高。此外,还研究了噪声分离网络在电力电子电磁兼容中的应用。实验表明,新网络可较好应用于电力电子的传导电磁兼容性分析,并对改善电力电子EMC性能有积极意义。
Based on Mardiguian＇s noise separating network,a new network is presented for electromag- netic compatibility（EMC） analysis of power electronic noise sources. Theoretical and experimental research show that the new network has obvious improvement on insertion loss （IL） performance and noise rejection ability. For example,the differential mode noise IL and the maximum common mode noise rejection rationis up to about 50 % and 70 %,respectively. Additionally,some applications on power electronic EMC analysis of the new network are studied including influence of the load change on EMI noise of the switched mode power supply, the noise diagnosis and the suppression, and the influence of the driven circuit signal on electromagnetic interference（EMI） noise of the converter,etc. Results show that the new EMI noise separating network has better feasibility in conductive EMC engineering.
出处
《南京航空航天大学学报》
CAS
CSCD
北大核心
2010年第1期37-42,共6页
Journal of Nanjing University of Aeronautics & Astronautics
基金
江苏省自然科学基金(BK2008429)资助项目
教育部高校博士点基金(20070287009)资助项目
东南大学毫米波国家重点实验室开放课题基金(K200803,K200903)资助项目
关键词
电力电子
开关电源
电磁兼容
传导电磁干扰
噪声分离网络
power electronics
switched mode power supply
electromagnetic compatibility （EMC）
electromagnetic interference（EMI）
noise separating network
