Frequency response analysis in motors with shaft voltage mitigation methods

被引：0

作者：

Im J.-H. ^{[1
]}

Park J.-K. ^{[2
]}

Hur J. ^{[1
]}

机构：

[1] Dept. of Electrical Engineering, Incheon National University

来源：

Transactions of the Korean Institute of Electrical Engineers | 2020年 / 69卷 / 03期

关键词：

Bearing fault; Common-mode voltage; Motor fault; PWM inverter; Shaft voltage;

D O I：

10.5370/KIEE.2020.69.3.427

中图分类号：

学科分类号：

摘要：

In PWM based inverter driven motor, shaft voltages usually cause bearing fault. Many methods to mitigate the shaft voltages have been proposed. Since the high frequency components are hazardous to bearing, it is necessary to analyze the frequency responses for each shaft voltage mitigation method. In this paper, frequency responses of three shaft voltage mitigation methods are analyzed and compared. First, equivalent circuit models regarding geometric shape of motor are presented. Second, modified models of each equivalent circuit containing shaft voltage reduction methods are proposed. Finally, the comparison of the frequency responses for each shaft voltage mitigation method is presented. Copyright © The Korean Institute of Electrical Engineers.

引用

页码：427 / 434

页数：7

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