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首页> 外文期刊>IEEE Transactions on Industry Applications >Design and Performance Evaluation of a High Power-Density EMI Filter for PWM Inverter-Fed Induction-Motor Drives
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Design and Performance Evaluation of a High Power-Density EMI Filter for PWM Inverter-Fed Induction-Motor Drives

机译：PWM变频器供电的感应电动机驱动器的高功率密度EMI滤波器的设计和性能评估

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摘要

This paper presents the design of an electromagnetic interference (EMI) filter for a low-voltage high-current induction-motor drives supplied by dc power grids. In order to effectively design the EMI filter, a suitable common-mode/differential-mode (CM/DM) separation technique has been used. Due to the high operating currents, the software-based separation technique using time-domain measurements has been applied. The proposed technique allows the CM and DM sections of the EMI filter to be properly selected in a more economical way, i.e., without the need of a dedicated hardware or costly radio frequency (RF) instrumentation. The design has been done according to a power-density criterion. The effectiveness of the proposed CM/DM separation technique and the EMI filter features/performance has been assessed by experimental tests, carried out with an 1.1-kW pulsewidth modulation (PWM) inverter-fed induction-motor drive, supplied by a 48-V dc power grid.
机译：本文介绍了一种用于直流电网提供的低压大电流感应电动机驱动器的电磁干扰（EMI）滤波器的设计。为了有效地设计EMI滤波器，已使用了合适的共模/差模（CM / DM）分离技术。由于高工作电流，已应用了使用时域测量的基于软件的分离技术。所提出的技术允许以更经济的方式适当地选择EMI滤波器的CM和DM部分，即不需要专用硬件或昂贵的射频（RF）仪器。该设计已根据功率密度标准完成。建议的CM / DM分离技术和EMI滤波器特性/性能的有效性已通过实验测试进行了评估，该实验使用1.1V脉宽调制（PWM）逆变器供电的感应电动机驱动器进行，并由48V电源供电。直流电网。

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