Induction Motor Bearing Currents - Causes and Damages

被引：8

作者：

Kudelina, Karolina ^{[1
]}

Vaimann, Toomas ^{[1
]}

Rassolkin, Anton ^{[1
]}

Kallaste, Ants ^{[1
]}

Asad, Bilal ^{[1
,2
]}

Demidova, Galina ^{[1
,3
]}

机构：

[1] Tallinn Univ Technol, Dept Elect Power Engn & Mechatron, EE-19086 Tallinn, Estonia

[2] Aalto Univ, Dept Elect Engn & Automat, FI-00076 Espoo, Finland

[3] ITMO Univ, Fac Control Syst & Robot, St Petersburg 197101, Russia

来源：

2021 28TH INTERNATIONAL WORKSHOP ON ELECTRIC DRIVES: IMPROVING RELIABILITY OF ELECTRIC DRIVES (IWED2021) | 2021年

关键词：

AC motors; ball bearings; condition monitoring; electric motors; induction motors; predictive maintenance; shafts; INVERTER; MACHINES; VOLTAGE;

D O I：

10.1109/IWED52055.2021.9376354

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Bearing damages make the biggest proportion of faults affecting AC electrical motors. There are various subdivisions of the bearing faults but one of them is the induced bearing and shaft currents in the machines. These currents cannot be fully avoided, yet with the development of power electronic control of the machines, the number of machines affected by potentially more dangerous and damaging frequency converter induced bearing and shaft currents is growing rapidly. This paper is opening the background of the nature and types of bearing currents, lists the damages inflicted by these currents and addresses problem as well as stresses the necessity of taking those currents into account for ensuring more efficient and longer lifespan of industrial electrical machines.

引用

页数：5

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