摘要
以典型的三相四桥臂逆变器为对象,分析其输入侧和输出侧传导共模干扰路径。根据逆变器共模干扰回路的结构和特点,结合二端口理论提出一种逆变器共模EMI的预测模型。分析了该模型的物理意义,给出了模型中阻抗参数及独立电压源的测量计算方法。最后,改变逆变器的结构和运行工况后测量输入侧输出侧共模电流,预测结果和实验结果的对比验证了该模型的正确性。
A typical three-phase four-leg inverter is studied in order to investigate the conducted common-mode electromagnetic interference (EMI) loop at both the input and output sides of the inverter. A common-mode EMI model of the inverter based on the two-port theory is proposed according to the structure and characteristics of its common-mode interference loop. The physical definition of the model is analyzed. the method of the model parameters extraction and calculation is given out. Finally, the input and output side common-mode current is measured after changing the structure and operating condition of the inverter. The model is verified by the comparison between the prediction results and the experimental results.
作者
周作坚
马俊
周武
裴雪军
ZHOU Zuojian MA Jun ZHOU Wu PEI Xuejun(State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, Chin)
出处
《电源学报》
CSCD
2017年第3期1-8,共8页
Journal of Power Supply
基金
中央高校基本科研业务费用专项资金资助项目(2015TS012)~~