Simulation of Fuzzy Controller Based PFC Cuk Converter Fed BLDC Motor Drive
Journal Title: UNKNOWN - Year 2015, Vol 4, Issue 4
Abstract
The use of permanent-magnet brushless dc motor (BLDC) in low-power appliances is increasing because of its features of high efficiency, wide speed range, and low maintenance. This project deals with a power factor correction (PFC) based Cuk converter fed brushless DC motor (BLDC) drive as a cost effective solution for low power applications. The speed of the BLDC motor is controlled by varying the Dc bus voltage of voltage source inverter(VSI) which uses a low frequency switching of VSI (electronic commutation of BLDC motor) for low switching losses. A diode bridge rectifier (DBR) followed by a Cuk converter working in discontinuous conduction mode(DCM)is used for control DC link voltage with unity power factor at AC mains. The fuzzy based controller system is used for general purpose industrial applications. Performance of the PFC Cuk converter is evaluated in four different operation condition of discontinuous and continuous conduction mode (CCM) and a comparison is made to select a best suited mode of operation.
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