An adjustable-speed PFC bridgeless buck-boost converter-fed BLDC motor drive

Bist, Vashist ; Singh, Bhim (2014) An adjustable-speed PFC bridgeless buck-boost converter-fed BLDC motor drive IEEE Transactions on Industrial Electronics, 61 (6). pp. 2665-2677. ISSN 0278-0046

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This paper presents a power factor corrected (PFC) bridgeless (BL) buck-boost converter-fed brushless direct current (BLDC) motor drive as a cost-effective solution for low-power applications. An approach of speed control of the BLDC motor by controlling the dc link voltage of the voltage source inverter (VSI) is used with a single voltage sensor. This facilitates the operation of VSI at fundamental frequency switching by using the electronic commutation of the BLDC motor which offers reduced switching losses. A BL configuration of the buck-boost converter is proposed which offers the elimination of the diode bridge rectifier, thus reducing the conduction losses associated with it. A PFC BL buck-boost converter is designed to operate in discontinuous inductor current mode (DICM) to provide an inherent PFC at ac mains. The performance of the proposed drive is evaluated over a wide range of speed control and varying supply voltages (universal ac mains at 90-265 V) with improved power quality at ac mains. The obtained power quality indices are within the acceptable limits of international power quality standards such as the IEC 61000-3-2. The performance of the proposed drive is simulated in MATLAB/Simulink environment, and the obtained results are validated experimentally on a developed prototype of the drive.

Item Type:Article
Source:Copyright of this article belongs to Institute of Electrical and Electronics Engineers.
Keywords:Power Quality; Bridgeless (BL) Buck–Boost Converter; Brushless Direct Current (BLDC) Motor; Discontinuous Inductor Current Mode (DICM); Power Factor Corrected (PFC)
ID Code:106088
Deposited On:07 Aug 2017 12:23
Last Modified:07 Aug 2017 12:23

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