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High Power Factor Control of High-speed Single-phase BLDC Motor
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 Title & Authors
High Power Factor Control of High-speed Single-phase BLDC Motor
Lee, Wook-Jin; Jung, Bumun;
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This paper presents a power control method of high-speed single-phase BLDC motor. Most electric appliances require a power factor corrector (PFC) to mitigate grid current harmonics. However, the reactive components and power semiconductors in the PFC increase system cost and dimension. In this paper, a new motor drive system for a high-speed single-phase BLDC motor is proposed, which can decrease grid current harmonics without PFC by directly manipulating motor power and eliminating bulky electrolytic dc-link capacitor. Given that the proposed motor power control method does not require motor current controller, no current sensor is necessary. Moreover, the proposed algorithms can be easily implemented using a low-cost micro-controller. The effectiveness of the proposed power control method is verified by experiments.
Single-phase BLDC motor;Power factor corrector;High-speed motor;Grid current harmonics;Power control;Fan motor;
 Cited by
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