ANALYSIS, DESIGN & DEVELOPMENT OF HYBRID CONTROLLER FOR SPEED CONTROL OF PERMANENT MAGNET BRUSHLESS DC MOTOR DRIVE

Abstract

With rapid developments in power electronic technology, power semiconductor technology, modern control theory for motors, the permanent magnet brushless DC motors (PMBLDCM) are been widely used in many fields. Due to the advantages like small size, good performance, simple structure, high reliability and large output torque, BLDC motors have attracted increasing attention. They have also found wide applications in high power servo and robotic application due to their advantages like high power-density ease of control, high efficiency, low maintenance and low rotor inertia. It is well known that electrical motors use a significant percentage of Electrical Energy and even small improvement in operating efficiency could result in large reduction in consumption of energy. Therefore new techniques are required to extract ultimate performance from these drives. There has also been tremendous research for providing suitable speed controller for PMBLDC motor. Many control strategies...