Analysis and design of a cost effective converter for srm drive with reduced torque and current ripples

Abstract

Switched Reluctance Motor SRM designed with a number of different power converter circuits and position control system as its major components are of simple construction easy maintenance high speed range robust and can be employed for unique applications due to the construction of rotor without permanent magnets. These features accounts for its economical pricing and popularity in the automation industry. The presence of acoustic noise and vibration due to torque ripples are the only major limitations of SRM The conventional converters have many advantages and features such as high efficiency fast regeneration high control capability phase independence and fast response. In addition there are other limitations that need solution A major issue in the conventional converters are torque ripple current ripple and high conduction losses due to more number of components This may reduce the overall efficiency of the machine So the reduction of torque and current ripples is the major objective of this work. newline