DocumentCode :
2669040
Title :
High-Frequency Modeling of an Adjustable Speed Drive
Author :
Weens, Yannick ; Idir, Nadir ; Franchaud, Jean-Jacques ; Bausiere, Robert
Author_Institution :
L2EP, Univ. des Sci. et Technol. de Lille, Villeneuve d´´Ascq
fYear :
2006
fDate :
Aug. 30 2006-Sept. 1 2006
Firstpage :
456
Lastpage :
461
Abstract :
The use of high frequency switching power devices in adjustable speed drives (ASDs) induces high voltage variations (dv/dt) that excite the parasitic elements of the power circuit, leading to conducted emissions at high frequencies. The advent of these devices has thus generated several unexpected problems, such as premature deterioration of motor ball bearings and high increases in the electromagnetic interference (EMI) levels, caused by the circulation of the high frequency parasitic currents. This paper deals with high frequency modeling of an ASD system. This will be used to study the influence of the PWM inverter commutations on the level of the common mode and the differential mode currents between the power converter and the motor. First a shielded 4-wire energy cable model is presented. Then, a high frequency model of the PWM inverter and a model of the AC motor are proposed. Finally, the ASD system is simulated and the obtained results are compared to the experimental measurements
Keywords :
AC motor drives; PWM invertors; commutation; switching convertors; variable speed drives; AC motor ball bearings; EMI; PWM inverter; adjustable speed drive; common mode currents; commutations; conducted emissions; differential mode currents; electromagnetic interference; high-frequency modeling; shielded 4-wire energy cable model; switching power devices; AC motors; Ball bearings; Commutation; Electromagnetic interference; Frequency; Power system modeling; Pulse width modulation inverters; Switching circuits; Variable speed drives; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. EPE-PEMC 2006. 12th International
Conference_Location :
Portoroz
Print_ISBN :
1-4244-0121-6
Type :
conf
DOI :
10.1109/EPEPEMC.2006.4778442
Filename :
4778442
Link To Document :
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