摘要
介绍了变换器传导电磁干扰集中等效电路的建模方法,从电路的角度上对变换器传导干扰耦合机理进行分析研究,提出了一种简单易行的方法估计变换器的噪声源和内阻抗,结合具体的实验装置验证了本文方法的正确性。研究结果表明应用本文建立的模型可以较准确地对实际滤波器的干扰抑制效果进行预测。
This paper proposes a lumped circuit modeling approach for describing conducted EMI coupling mechanism in power converters. The EMI can be analytically deduced from a circuit theoretical viewpoint. Based on the derived model, a simple and practical method is also presented for EMI noise source and impedance estimation. An experimental illustration is also given to verify the validity of the proposed method. The EMI noise mitigation effort of a proposed filter is discussed based on the experiment to show good agreement with the theoretical prediction.
出处
《电工技术学报》
EI
CSCD
北大核心
2005年第6期25-29,共5页
Transactions of China Electrotechnical Society
基金
国家自然科学基金委员会创新研究群体科学基金(50421703)
高等学校优秀青年教师教学科研奖励计划项目(教人司[2001]182号)
