Constant rate magnetic weakening control method of brushless DC motor based on current advance angle method
by Xi Qin
International Journal of Power and Energy Conversion (IJPEC), Vol. 13, No. 2, 2022

Abstract: In order to improve the timeliness and effect of magnetic weakening control, this study designed a constant rate magnetic weakening control method of brushless DC motor based on current advance angle method. After the motor constant rate unit is established, the motor voltage is controlled in a stable state. When the motor speed exceeds the rated speed, the lead angle of the control current is controlled by controlling the ratio of the motor terminal voltage to the bus voltage, so that the in-phase current and the back potential can keep synchronised. And then the weak magnetic control is realised. Experimental results show that the motor can enter the weak magnetic mode only 68-109 ms after using this method, the motor can achieve fast dynamic response, the speed increases to 7,000 rad/min in a short time, and the motor can achieve more than three times of weak magnetic control well.

Online publication date: Wed, 11-Jan-2023

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
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 Power and Energy Conversion (IJPEC):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your 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