Intelligent design of sensorless Switched reluctance motor drives

Abstract

The Switched Reluctance Motor SRM drive technology has gone newlinethrough steady and significant development over the last two decades The newlinesimplicity in both motor construction and power converter requirement newlinetogether with the availability of fast acting high performance semiconductor newlineswitches have made SRM an attractive alternative in adjustable speed drives newlineShaft position sensing is essential in SRMs with the view to synchronize the newlinephase excitation pulses to the rotor position The torque in a SRM is newlinedeveloped by the tendency of the rotor to seek the minimum reluctance newlineposition which consequently is the complete alignment of the rotor The rotor newlineposition information is essential in the SRM drive to generate the newlinecommutation signals Hall Effect sensors used for current sensing not only newlineadd complexity to the system but also come with associated cost newline newline