Introduction
Bimonthly, started in 1957
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
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Speed Identification Method of IPMSM Based on MRAS in the Flux-weakening Field
DOI:
10.16355/j.cnki.issn1007-9432tyut.2017.05.016
Received:
Accepted:
| Corresponding author | Institute | |
| WANG Shuhong | College of Electrical and Power Engineering,Taiyuan University of Technology |
abstract:
In this paper,a control method of estimating the rotor speed based on MRAS for interior permanent magnet synchronous motor(IPMSM)in the flux-weakening field is presented.The permanent magnet synchronous motor is considered as reference model and the stator current mathematical model containing estimated parameters is regarded as adjustable model,an adaptive law based on Popov stability theory is derived.Meanwhile,considering the case of non-equal quadrature axis inductance of salient pole motor,the speed identification formulae applying to both non-salient pole motor and salient pole motor are obtained.The simulation results indicate that speed identification algorithm can accurately identify the speed of IPMSM in the flux-weakening field and the identification results respond quickly in system dynamic process.
Keywords:
IPMSM; MRAS; speed sensorless control; flux-weakening control;