Title :
Analysis of insulation characteristics of low-voltage induction motor driven by IGBT PWM inverter
Author :
Hwang, Don-Ha ; Park, Doh-Young ; Kim, Yong-Joo ; Kim, Dong-Hee ; Koo, Ja-Yoon ; Kim, Jin-Hong
Author_Institution :
Mech. Res. Group, Korea Electrotechnol. Res. Inst., Changwon, South Korea
Abstract :
IGBT PWM inverter driven induction motors for variable speed applications have been widely used since their introduction. Recently, stator winding insulation failures have attracted much concern due to high dv/dt of IGBT inverter output. In this paper, the detailed insulation test results of 26 low-voltage induction motors are presented. Six different types of insulation techniques are applied to 26 motors. The insulation characteristics are analyzed with partial discharge, dissipation factor, and discharge inception voltage tests. Also, breakdown tests by high voltage pulses are performed
Keywords :
PWM invertors; induction motor drives; insulated gate bipolar transistors; insulation testing; machine insulation; partial discharges; stators; variable speed drives; AC current; IGBT PWM inverter drive; breakdown tests; discharge inception voltage; dissipation factor; high voltage pulses; insulation characteristics; low-voltage induction motor; partial discharge; stator winding insulation failure; variable speed applications; Breakdown voltage; Cable insulation; Induction motors; Insulated gate bipolar transistors; Insulation testing; Partial discharges; Pulse width modulation inverters; Stator windings; Surges; Wires;
Conference_Titel :
Electrical Insulation, 2000. Conference Record of the 2000 IEEE International Symposium on
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-5931-3
DOI :
10.1109/ELINSL.2000.845410
