A Review of Modeling and Mitigation Techniques for Bearing Currents in Electrical Machines With Variable-Frequency Drives

被引：12
|
作者：
Zhu, Wenjun [1 ]
De Gaetano, Daniele [1 ]
Chen, Xiao [1 ]
Jewell, Geraint Wyn [1 ]
Hu, Yihua [2 ]
机构：
[1] Univ Sheffield, Dept Elect & Elect Engn, Sheffield S10 4DE, England
[2] Univ York, Dept Elect Engn, York Y10 5DD, England
来源：
IEEE ACCESS | 2022年 / 10卷
基金：
英国工程与自然科学研究理事会;
关键词：
AC machines; bearing current; common mode current; common mode voltage; variable frequency drives; PASSIVE EMI FILTER; INDUCTION-MOTOR; SHAFT VOLTAGE; CURRENT REDUCTION; SUPPRESSION TECHNIQUES; OPERATING PARAMETERS; CMV ELIMINATION; AC MOTOR; PWM; INVERTER;
D O I：
10.1109/ACCESS.2022.3225119
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The converter switching in variable-frequency drives can generate high frequency common mode voltage between the machine winding and the converter ground, leading to high frequency parasitic currents which can flow through the machine bearings unless precautions are taken in design and installation. These parasitic and unintended currents in the bearings cause deterioration of the lubrication film and surface damage to the rolling elements of the bearings. These problems will be exacerbated as wide-bandgap semiconductors with faster switching rise times start becoming more widespread in variable-frequency drives. This paper reviews the modelling and mitigation techniques of high frequency bearing currents in inverter fed AC drives. It aims to provide a solid base for the research community to further understanding the bearing currents phenomenon and helping to find novel improved technique for their mitigation and measurement.
引用
收藏
页码：125279 / 125297
页数：19
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