Title :
Measurement for space charge and analysis on insulation aging under PWM voltage
Author :
Liu, Jun ; Wu, Guangning ; Zhou, Lijun ; Lei, Dong ; Lv, Wei ; Min, Yingjie ; Wang, Tao
Author_Institution :
Coll. of Electr. Eng., Southwest Jiaotong Univ., Chengdu, China
Abstract :
The relationship between the space charge and the polymer residual life is studied both in domestic and abroad laboratories. An apparatus that can directly measure the space charge distribution in the polymer insulation materials is developed. Then the space charge distribution in the polymer insulation used in PWM inverter fed motors is tested. Effects of different test condition including pole voltage and frequency are investigated in order to find the aging rule and microcosmic behave of the polymer insulation which worked under the PWM voltage. After detail analysis, we can conclude that there is strong relation between the space charge distribution and the aging mechanism.
Keywords :
AC motors; PWM invertors; ageing; charge measurement; insulation testing; polymers; space charge; PWM Voltage; PWM inverter fed motors; aging rule; insulation aging; pole frequency; pole voltage; polymer insulation; polymer insulation materials; polymer residual life; space charge distribution; space charge measurement; Aging; Charge measurement; Current measurement; Insulation testing; Laboratories; Plastic insulation; Polymers; Pulse width modulation; Space charge; Voltage; Pulse Electro-Acoustic method; polyimide film; space charge; steep pulse;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2009. ICPADM 2009. IEEE 9th International Conference on the
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-4367-3
Electronic_ISBN :
978-1-4244-4368-0
DOI :
10.1109/ICPADM.2009.5252242
