Power factor correction in bridgeless-Luo converter-fed BLDC motor drive

Singh, Bhim ; Bist, Vashist ; Chandra, Ambrish ; Al-Haddad, Kamal (2015) Power factor correction in bridgeless-Luo converter-fed BLDC motor drive IEEE Transactions on Industry Applications, 51 (2). pp. 1179-1188. ISSN 0093-9994

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Official URL: http://ieeexplore.ieee.org/document/6874552/

Related URL: http://dx.doi.org/10.1109/TIA.2014.2344502


This paper presents a power factor correction (PFC)-based bridgeless Luo (BL-Luo) converter-fed brushless dc (BLDC) motor drive. A single voltage sensor is used for the speed control of the BLDC motor and PFC at ac mains. The voltage follower control is used for a BL-Luo converter operating in discontinuous inductor current mode. The speed of the BLDC motor is controlled by an approach of variable dc-link voltage, which allows a low-frequency switching of the voltage source inverter for the electronic commutation of the BLDC motor, thus offering reduced switching losses. The proposed BLDC motor drive is designed to operate over a wide range of speed control with an improved power quality at ac mains. The power quality indices thus obtained are under the recommended limits of IEC 61000-3-2. The performance of the proposed drive is validated with test results obtained on a developed prototype of the drive.

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