An improved sensorless strategy on the basis of improved PI regulator Online publication date: Wed, 01-Dec-2021
by Haigang Zhang; Piao Liu; Xuan Chen; Bulai Wang
International Journal of Innovative Computing and Applications (IJICA), Vol. 12, No. 5/6, 2021
Abstract: The sensorless control strategy was implemented by replacing the conventional PI regulator with an improved fuzzy PI regulator, meanwhile an adjusted sliding mode observer was established for replacing the traditional rigid position sensor based on the principle of non-position sensor. The signals of rotor speed and position were extracted from the back electromotive force for reducing the error and complexity of the calculation of the angular and rotational speed. Compared with conventional PI sliding mode observer, the control system of the PMSM has a preferable influence on the steady-state and dynamic response. A Matlab platform has been built to validate this method, and the experimental results showed that the fuzzy PI sliding mode observer had strong robustness and restrained the chattering to a certain extent. On the other hand it also could improve the stability, rapidity and dynamic performance of the SMO system.
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 Innovative Computing and Applications (IJICA):
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