Statistical model of electrostatic discharge hazard in bearings of induction motor fed by inverter

被引：11

作者：

Kempski, A ^{[1
]}

Smolenski, R ^{[1
]}

Bojarski, J ^{[1
]}

机构：

[1] Univ Zielona Gora, PL-65246 Zielona Cora, Poland

来源：

JOURNAL OF ELECTROSTATICS | 2005年 / 63卷 / 6-10期

关键词：

bearing currents; statistical model; hazard; inverter; induction motor;

D O I：

10.1016/j.elstat.2005.03.005

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a statistical approach has been applied to determine the influence of inverter drive parameters on the rate and the amplitude of flashover currents in bearings of AC motors. The main cause of bearing currents is a charge accumulated on the shaft as a result of temporarily electric asymmetry at the output of the inverter in a presence of parasitic capacitive couplings inside the motor. The proposed statistical method could be the basis for comparative analyses of bearing damage hazard in a various drive configurations. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：475 / 480

页数：6

共 4 条

[1] Capacitively coupled discharging currents in bearings of induction motor fed from PWM (pulsewidth modulation) inverters [J].