Title :
Rotor flux based MRAS for sensorless operation of three level inverter fed induction motor
Author :
Giribabu, D. ; Srivastava, S.P. ; Pathak, M.K.
Author_Institution :
Dept. of Electr. Eng., IIT Roorkee, Roorkee, India
Abstract :
This paper proposes a sensorless vector control scheme for induction motor to operate at low speed. The integrator in the reference model of the rotor flux based Model Reference Adaptive System (MRAS) have the problems of dc drift and dead time. A new integration algorithm is developed for rotor flux based MRAS to reduce the effects of integrator. Multilevel inverter with space vector modulation technique is used to improve the performance of induction motor drive. Simulation study is carried out using SIMULINK and comparison study is made between classical rotor flux MRAS, new integration algorithm.
Keywords :
induction motors; invertors; model reference adaptive control systems; rotors; sensorless machine control; Simulink; integration algorithm; multilevel inverter; rotor flux-based MRAS; rotor flux-based model reference adaptive system; sensorless operation; sensorless vector control scheme; space vector modulation technique; three level inverter fed induction motor drive; Adaptation models; Induction motors; Inverters; Machine vector control; Mathematical model; Rotors; Vectors; Induction Motor; Model Reference Aadaptive System (MRAS); Multi Level Inverter; Space Vector Modulation;
Conference_Titel :
Electrical, Electronics and Computer Science (SCEECS), 2012 IEEE Students' Conference on
Conference_Location :
Bhopal
Print_ISBN :
978-1-4673-1516-6
DOI :
10.1109/SCEECS.2012.6184765
