Title :
Comparison of MRAS and novel simple method for position estimation in PMSM drives
Author :
Eskola, Matti ; Tuusa, Heikki
Author_Institution :
Inst. of Power Electron., Tampere Univ. of Technol., Finland
Abstract :
The control of a high performance permanent magnet synchronous motor drive needs accurate information on rotor angle and angular speed. Two methods to estimate the position angle and angular speed of a surface magnet motor without the use of mechanical motion sensors are compared in this paper. The proposed estimator is compared to the model reference adaptive system (MRAS) estimator, which is a well known method of estimating the angle and speed of the PMSM. The simple algorithms studied in this paper do not need any information about mechanical system of the motor. The applicability of the estimators for closed-loop, estimator based, feedback control was studied using simulations and measurements with a real PMSM drive.
Keywords :
angular velocity control; closed loop systems; feedback; machine vector control; model reference adaptive control systems; parameter estimation; permanent magnet motors; rotors; synchronous motor drives; two-term control; MRAS; PI controller; PMSM drive; PMSM drives; angular speed; closed-loop; feedback control; field oriented control; model reference adaptive system estimator; motor speed control; permanent magnet synchronous motor drive; position angle estimation; position estimation; rotor angle; surface magnet motor; Adaptive systems; Computational modeling; Control systems; Magnetic sensors; Mechanical sensors; Mechanical systems; Permanent magnet motors; Rotors; Servomotors; Synchronous motors;
Conference_Titel :
Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual
Print_ISBN :
0-7803-7754-0
DOI :
10.1109/PESC.2003.1218115
