Research on compound control strategy of sensorless permanent magnet synchronous motor Online publication date: Fri, 07-Jul-2023
by Kai Zhou
International Journal of Electric and Hybrid Vehicles (IJEHV), Vol. 15, No. 2, 2023
Abstract: The parameters of permanent magnet synchronous motor (PMSM) change from time to time at low speeds, leading to unstable operations. Aiming at this shortcoming, this paper proposes a control method of sensorless PMSM feedforward voltage estimation combined with multi-parameter estimation, and the parameters required for the feedforward voltage control (FFVC) are given through the multi-parameter estimation model. The FFVC is used to dynamically control the current of the stator voltage in the inner loop, and the sliding mode controller is added to improve the sensitivity and stability of the parameter change at the low speeds of the PMSM. This method improves the dynamic stability of the motor control system and eliminates the transient oscillation in the speed estimation. Through software simulation and experimental verification on the hardware platform of a 2-kW PMSM, it is shown that the proposed control strategy can make the PMSM run stably at low speeds.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Electric and Hybrid Vehicles (IJEHV):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook