CAJ | 학술논문

针对目前市场上常用的功率变频器———PWM变频器的应用，从几个方面分析了的其电磁干扰（ EMI）产生机理，包括整流测、逆变侧和过电压产生。然后，介绍了几种常见滤波器，并对RLC滤波器参数进行设计，并提出了LC-RLC级联滤波器的拓扑结构。最后，利用Matlab／Simulink建立了相应的几种滤波器仿真模型，验证所设计的滤波器对了EMI抑制技术的有效性。
침대목전시장상상용적공솔변빈기———PWM변빈기적응용，종궤개방면분석료적기전자간우（ EMI）산생궤리，포괄정류측、역변측화과전압산생。연후，개소료궤충상견려파기，병대RLC려파기삼수진행설계，병제출료LC-RLC급련려파기적탁복결구。최후，이용Matlab／Simulink건립료상응적궤충려파기방진모형，험증소설계적려파기대료EMI억제기술적유효성。
In view of the application of PWM inverter which commonly used in present market, we analyze the mecha-nism of electromagnetic interference ( EMI) from some aspects, including rectifier and inverter side and overvoltage. In this paper, the electromagnetic interference filter is introduced, and the parameters of the RLC filter are designed. The final LC-RLC cascade filter topology structure is put forward.Finally, simulation model is established by Matlab/Simulink, to verify the effectiveness of the electromagnetic interference suppression technique.