Title :
Sensorless Operation of a Permanent Magnet Generator for Aircraft
Author :
Qiang Gao ; Staines, C. Spiteri ; Asher, Greg M. ; Sumner, M.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nottingham Univ.
Abstract :
The paper investigates the improvement in sensorless vector control of induction machines through the use of a non-linear feedback integrator embedded in a standard rotor flux model reference adaptive system (MRAS)-based observer. The feedback integrator compensates for drift and DC-offset and is capable of open loop flux estimation down to frequencies below 0.1 Hz. The paper presents experimental results of a sensorless speed controlled induction motor exploiting a MRAS observer. The sensorless system shows good performance down to frequencies of 0.2 Hz
Keywords :
angular velocity control; induction motors; machine vector control; model reference adaptive control systems; nonlinear systems; observers; rotors; 0.2 Hz; MRAS observer; cage induction motor; nonlinear feedback integrator; rotor flux model reference adaptive system; sensorless vector control; speed control; zero drift feedback integration; Adaptive systems; Aircraft; Feedback; Frequency estimation; Induction generators; Induction machines; Machine vector control; Permanent magnets; Programmable control; Rotors;
Conference_Titel :
Electric Machines and Drives, 2005 IEEE International Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-8987-5
Electronic_ISBN :
0-7803-8988-3
DOI :
10.1109/IEMDC.2005.195970
