Stability Analysis for Direct Torque Control of Permanent Magnet Synchronous Motors

Author

Linni Jian ; Liming Shi

Author_Institution

Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing

Volume

2

fYear

2005

fDate

29-29 Sept. 2005

Firstpage

1672

Lastpage

1675

Abstract

Direct torque control (DTC) is an effective control strategy for permanent magnet synchronous motor (PMSM). However, the asynchronization between stator flux linkage vector and rotor flux linkage vector may happen and this may result in unstable operation or serious vibration. This paper describes several principles that should be taken into account when we design the DTC system for PMSM. For instance, the choice of stator flux linkage, the effect of zero-voltage vector, the limitation for torque reference, and so on. The simulation results confirm the correctness of the stability analysis

Keywords

control system synthesis; machine control; magnetic flux; permanent magnet motors; stability; synchronous motors; torque control; PMSM; asynchronization; direct torque control; flux linkage; permanent magnet synchronous motor; rotor; stability analysis; stator; zero-voltage vector; Couplings; Equations; Inverters; Permanent magnet motors; Rotors; Stability analysis; Stators; Switches; Torque control; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on

Conference_Location

Nanjing

Print_ISBN

7-5062-7407-8

Type

conf

DOI

10.1109/ICEMS.2005.202838

Filename

1638076