Research on the Application of Flux-Weakening Control in PMSM with Wide Range Speed Variation

In order to meet the requirement for wide range speed regulation in permanent magnet synchronous motor (PMSM) control, the flux-weakening control strategy based on the method of voltage limit circle gradient descent is proposed. Firstly, the principle of flux-weakening control is introduced in the p...

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Bibliographic Details
Published in2017 International Conference on Smart Grid and Electrical Automation (ICSGEA) pp. 371 - 374
Main Authors Xun Qian, Guo Xiaorui, Qin Haihong, Zhang Ying, Dong Yaowen
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2017
Subjects
current correction value
current-limit ellipse
fluxweakening control
Mathematical model
Permanent magnet motors
Stator windings
Synchronous motors
Torque
Voltage control
voltage-limit ellipse
Wide range speed
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Summary:In order to meet the requirement for wide range speed regulation in permanent magnet synchronous motor (PMSM) control, the flux-weakening control strategy based on the method of voltage limit circle gradient descent is proposed. Firstly, the principle of flux-weakening control is introduced in the paper, on the basis of this, the flux-weakening area has been determined according to the voltage-limit ellipse and current-limit ellipse. In the flux-weakening area, the current correction value is calculated by the flux-weakening field and voltage error. Simulation results show that the strategy can expand the speed range of PMSM, and the feasibility of this method is explained.
DOI:10.1109/ICSGEA.2017.32