Sensorless control of PM synchronous motors based on MRAS method and initial position estimation

Author

LIANG, Yan ; Li, Yongdong

Author_Institution

Dept. of Electr. Eng. & Appl. Electron., Tsinghua Univ., Beijing, China

Volume

1

fYear

2003

fDate

9-11 Nov. 2003

Firstpage

96

Abstract

This paper presents a scheme of model reference adaptive system (MRAS) method for the sensorless control of PM synchronous motors. The stability of this scheme is guaranteed by the Popov super stability theorem. Two-phase stator currents and DC bus voltage are used to estimate the rotor speed and position and it doesn´t need much calculation. The experimental results show that the estimated values are in close agreement with those obtained from an encoder. The method of estimating the initial rotor position of PM synchronous motors is also discussed in this paper.

Keywords

Popov criterion; machine control; model reference adaptive control systems; permanent magnet motors; rotors; stability; synchronous motors; DC bus voltage; MRAS method; PM synchronous motors; Popov super stability theorem; model reference adaptive system; position estimation; rotor speed; sensorless control; two-phase stator currents; Adaptive control; Adaptive systems; Electronic mail; Equations; Programmable control; Rotors; Sensorless control; Stability; Stators; Synchronous motors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2003. ICEMS 2003. Sixth International Conference on

Conference_Location

Beijing, China

Print_ISBN

7-5062-6210-X

Type

conf

Filename

1273819