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首页> 外文期刊>IEEE Transactions on Power Electronics >EMI Behavioral Models of DC-Fed Three-Phase Motor Drive Systems
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EMI Behavioral Models of DC-Fed Three-Phase Motor Drive Systems

机译：直流馈电三相电动机驱动系统的EMI行为模型

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摘要

Behavioral electromagnetic interference (EMI) models based on Thevenin equivalents are proposed for a dc-fed three-phase motor drive system. Both common-mode (CM) and differential-mode (DM) noise models are developed to accurately predict the total EMI noise in accordance with the DO-160 standards for aerospace applications. Beyond the switching frequency of the drive, the CM noise model is found to behave like a two-port linear network and is shown to predict changes in the input-side EMI due to any changes in the load-side parameters or vice versa. Simplified one-port behavioral models for DM noise are then used to predict the total noise at both input and output side of the motor drive. Such models can be very useful in system level EMI analysis and also in understanding how EMI filters and harnesses affect the overall EMI in a motor drive system. The models run in the frequency domain and are validated with experiments up to 30 MHz.
机译：针对直流供电的三相电动机驱动系统，提出了基于戴维南等效项的行为电磁干扰（EMI）模型。开发了共模（CM）和差模（DM）噪声模型，以根据航空航天应用DO-160标准准确预测总EMI噪声。除了驱动器的开关频率之外，还发现CM噪声模型的行为类似于两端口线性网络，并且可以预测由于负载侧参数的任何变化而引起的输入侧EMI的变化，反之亦然。 DM噪声的简化的单端口行为模型随后用于预测电动机驱动器输入和输出侧的总噪声。这样的模型在系统级EMI分析以及理解EMI滤波器和线束如何影响电机驱动系统的整体EMI中非常有用。这些模型在频域中运行，并通过高达30 MHz的实验进行了验证。

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