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An auxiliary power supply based on the phase voltage ripple employed in a micro inverter for feeding three phase Tesla induction motor

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2 Author(s)
P. J. Grbovic ; Schneider Toshiba Inverter Eur. R&D, France ; S. N. Vukosavic

This paper describes an auxiliary power supply employed to feed the control unit and gate drivers in a three-phase PWM micro inverter. The micro inverter feeds three-phase Tesla induction motor as mechanical actuator in small industrial water pumps. The proposed auxiliary power supply is based on a resonant serial half wave rectifier supplied from an output of the inverter. The rectifier provides output voltage of approximately 15 V at 30 mA load current. The analytical analysis was experimentally verified on the micro inverter TRISTALAN150

Published in:

Power Electronics and Applications, 2005 European Conference on

Date of Conference:

11-14 Sept. 2005