Title :
Techniques for off-line measurement and analysis of PD pulses in inverter-fed induction motors
Author :
Cavallini, A. ; Montanari, G.C. ; Contin, A. ; Qinxue, Y.
Author_Institution :
Bologna Univ., Italy
Abstract :
Results of offline measurements of partial discharge in AC motors supplied by PWM inverter is presented in this paper. The test circuit is based on a differential configuration and is optimized resorting to signal processing techniques. The measured signals are sent to a personal computer via an A/D board for further processing through time/frequency transformations. The obtained results can be employed to infer the status of induction motor insulation subjected to PWM supply voltage.
Keywords :
AC motors; PWM invertors; machine insulation; partial discharges; signal processing; time-frequency analysis; A/D board; AC motors; PWM inverter; induction motor insulation; inverter-fed induction motors; off-line measurement; partial discharge pulses; personal computer; signal processing; test circuit; time/frequency transformations; AC motors; Circuit testing; Induction motors; Partial discharge measurement; Partial discharges; Pulse inverters; Pulse measurements; Pulse width modulation; Pulse width modulation inverters; Signal processing;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2003. Proceedings of the 7th International Conference on
Print_ISBN :
0-7803-7725-7
DOI :
10.1109/ICPADM.2003.1218608
