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http://dx.doi.org/10.5370/JEET.2014.9.6.1914

Analysis on Core Loss of Brushless DC Motor Considering Pulse Width Modulation of Inverter  

Kim, Ki-Chan (Department of Electrical Engineering, Hanbat National University)
Publication Information
Journal of Electrical Engineering and Technology / v.9, no.6, 2014 , pp. 1914-1920 More about this Journal
Abstract
In this paper, characteristics of blushless direct current (BLDC) motor including core loss are analyzed considering pulse width modulation (PWM) of inverter. Input voltage of BLDC motor due to PWM is calculated considering duty ratio and carrier frequency of inverter in order to control torque or speed of BLDC motor. For the calculation of core loss, the input current with harmonics due to PWM voltage is calculated by using equivalent circuit model of BLDC motor according to switching pattern and carrier frequency. Next, core loss is analyzed by inputting the currents as a source of BLDC motor for FEM. Characteristics including core loss are compared with ones without PWM waveform according to reference speed.
Keywords
Blushless DC motor; Core loss; Pulse width modulation; Switching frequency;
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Times Cited By KSCI : 1  (Citation Analysis)
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