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Title: Voltage Controlled Push - Pull Converter Based PFC Drive for PMBLDC Motors.
Authors: Singh, Sanjeev
Singh, Bhim
Keywords: PFC
Air conditioner
Push-pull converter
Voltage control
Issue Date: 2010
Publisher: Indian Institute of Technology Roorkee.
Citation: Sanjeev Singh and Bhim Singh, "Voltage Controlled Push - Pull Converter Based PFC Drive for PMBLDC Motors", Indian Institute of Technology Roorkee. 2010.
Abstract: In this paper, a single-stage power factor correction (PFC) converter based on a diode bridge rectifier fed push-pull DC-DC converter is used for feeding a voltage source inverter (VSI) based permanent magnet brushless DC motor (PMBLDCM). The PMBLDCM is used to drive a compressor load of an air conditioner. This speed control of the PMBLDCM uses a concept of the voltage control at DC link proportional to the desired speed while operating the VSI as an electronic commutator of the PMBLDCM. The stator current of the PMBLDCM during step change of reference speed is controlled by a rate limiter for the reference voltage at DC link. The proposed drive is designed, modeled and its performance is simulated in Matlab-Simulink environment for an air conditioner compressordriven through a 0.816 kW, 1500 rpm PMBLDC motor. The performance of the proposed speed control scheme is studied to demonstrate the effectiveness of the proposed drive system in wide range of the speed and input AC voltage.
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