Speed control of BLDC motor for four quadrant operation without loss of power

In this modern world the power demand and wastage is one of the major problems over the home appliance and small scale industries. Since the equipment´s have been used is very good power consumer. In this paper speed control of three phase BLDC motor for four quadrant operation with reduced power loss is proposed. Using Hall sensors the position of Rotor is determined and then individual stator windings are energized in order to make the rotor to rotate. The Power generated during the Braking mode of BLDC motor is stored in the Battery.