Current sensorless-based model predictive control for PMSM drive system

Publisher:
Editorial Board of Electric Machines and Control
Publication Type:
Journal Article
Citation:
Dianji yu Kongzhi Xuebao/Electric Machines and Control, 2019, 23, (5), pp. 119-128
Issue Date:
2019-05-01
Full metadata record
© 2019, Harbin University of Science and Technology Publication. All right reserved. Based on extended state observer (ESO), a novel model predictive torque control (MPTC) strategy was developed for three phase permanent magnet synchronous motor (PMSM) drive system with current sensorless. To achieve high precision control, generally two phase current sensors are indispensable for successful operation of the feedback control. For this purpose, by use of technique of ESO, a new observer for estimating three phase currents and time-varying stator resistance was put forward. Moreover, to reduce torque and flux ripples and improve the performance of the torque and speed, MPTC strategy was employed. The resultant ESO-based MPTC strategy enables PMSM drive system not only to run stably and reliably but also to have satisfactory control performance and strong robustness. The simulation results validate the feasibility and effectiveness of the proposed scheme.
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