AN ADJUSTABLE SPEED PFC BRIDGELESS BUCK–BOOST CONVERTER-FED BLDC MOTOR DRIVE

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AN ADJUSTABLE SPEED PFC BRIDGELESS BUCK–BOOST CONVERTER-FED BLDC MOTOR DRIVE

Abstract

A novel PFC (Power Factor Corrected) Converter using buck-boost DC-DC converter feeding a BLDC (Brush Less DC)motor drive using a single voltage sensor is proposed. Voltage of a DC link capacitor of buck-boost converter is controlled to achieve the speed control of BLDC motor. The buck-boost converter is working as a frontend converter operating in DICM (Discontinuous Inductor Current Mode) and thus using a voltage follower approach. The DC link capacitor of the buck-boost converter is followed by a VSI which is feeding a BLDC motor. A sensor less control of BLDC motor is used to eliminate the requirement of Hall Effect position sensors. A MATLAB/Simulink environment is used to simulate the developed model to achieve a wide range of speed control with high PF (Power Factor) and improved PQ (Power Quality) at the supply.

Author

Ms.K.Diviya Mr. E.Maridurai

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International Journal of Advanced
Science and Engineering Research

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