Impact of inverter on losses and thermal characteristics of induction motors
نویسندگان
چکیده
This paper investigated the losses and thermal characteristics of induction motors operated from pulse width-modulated (PWM) voltage supply in comparison to that operated from sinusoidal voltage supply. It was concluded that due to the abundant harmonics in the PWM waveforms, significant losses are induced in the motor by the inverter supply. The temperature ascends correspondingly. Switching frequencies of the PWM inverter at 3.5 kHz to 9 kHz were investigated to evaluate their effect on the excessive losses. Experiments were conducted with no load and with load conditions. The losses and thermal characteristics were calculated using finite-element analysis (FEA) and validated by the experiments.
منابع مشابه
Resistive Loss Modelling for Inverter- fed Induction Motors
Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Huynh Van Khang Name of the doctoral dissertation Resistive Loss Modelling for Inverter-fed Induction Motors Publisher School of Electrical Engineering Unit Department of Electrical Engineering Series Aalto University publication series DOCTORAL DISSERTATIONS 162/2012 Field of research Electromechanics Manuscript submitted 10 ...
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