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

Volume

2

fYear

2003

fDate

15-19 June 2003

Firstpage

550

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual

ISSN

0275-9306

Print_ISBN

0-7803-7754-0

Type

conf

DOI

10.1109/PESC.2003.1218115

Filename

1218115