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

Category : Power Electronics


Sub Category : MOTOR APPLICATIONS


Project Code : ITPW31


Project Abstract

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.

EXISTING SYSTEM

PROPOSED SYSTEM

Switching losses are high

Switching losses can be effectively reduced

Efficiency can be reduced due to losses

Efficiency is high

The percentage of harmonic current is high

The percentage of harmonic current is less

 
 
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