Title :
Frequency and time-domain analysis of partial discharge measurements in PWM inverter-fed induction motors
Author :
Yu, Qinxue ; Cavallini, Andrea ; Montanari, Gian Carlo
Author_Institution :
State Key Lab. of Electr. Insulation & Power Equip., Xi´´an Jiaotong Univ., China
Abstract :
This work presents a new PD (partial discharge) measuring system for inverter-fed motors based on a bridge circuit topology. The bridge circuit was adopted in the measuring system for picking up PD signal and suppressing interference. The experimental results show that it is possible to detect and record PD notwithstanding the large interference due to inverter commutations if measuring frequencies are selected adequately.
Keywords :
PWM invertors; bridge circuits; induction motors; interference suppression; network topology; partial discharge measurement; time-frequency analysis; PWM inverter-fed induction motor; bridge circuit topology; frequency-domain analysis; interference suppression; partial discharge measurement; time-domain analysis;
Conference_Titel :
Power Electronics and Motion Control Conference, 2004. IPEMC 2004. The 4th International
Conference_Location :
Xi´an
Print_ISBN :
7-5605-1869-9
