Review of Sensor & Sensor less Control Topologies for a Four- Switch Inverter Fed Permanent Magnet Brushless Dc Motor

Permanent Magnet (PM) Brushless DC machine has distinct advantages of high efficiency, high power density, high power factor, high torque, simple control, and minimal maintenance. Modelling, simulation and experimentation of drives with new converter configuration and control schemes are essential for making this drive competitive. This paper describes modelling of four switch inverter fed BLDC motor, is explained with transfer function model. The simulation of sensor and sensor less control of drive is done in Matlab/Simulink. Control with sensor, the controller is used Fuzzy logic Controller and in sensor less control the method is used is terminal voltage sensing

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