Title :
Analysis of the waveform-detection technique for indirect roto-position sensing of switched reluctance motor drives
Author :
Panada, S.K. ; Amaratunga, G.A.J.
Author_Institution :
Dept. of Eng., Cambridge Univ., UK
fDate :
9/1/1991 12:00:00 AM
Abstract :
A sensing technique that monitors rotor-position indirectly by monitoring the phase current waveform is evaluated. Computer simulations showing the effects of back-EMF on phase current rise and fall-times are presented. A control circuit for current-waveform-based rotor-position detection has been implemented using hard-wired digital circuits. Torque-speed and system efficiency characteristics resulting from the application of the method to a 4 kW, four-phase SR motor with IGBT drive are also presented
Keywords :
electric drives; position measurement; reluctance motors; rotors; 4 kW; computer simulations; efficiency characteristics; hard-wired digital circuits; indirect roto-position sensing; phase current waveform monitoring; switched reluctance motor drives; Application software; Circuits; Commutation; Insulated gate bipolar transistors; Motor drives; Reluctance motors; Rotors; Servomotors; Stator windings; Strontium;
Journal_Title :
Energy Conversion, IEEE Transactions on
