By Topic

A Rotor Speed and Load Torque Observer for PMSM Based on Extended Kalman Filter

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Zheng Zedong ; Laboratoire d'Electrotechnique et d'Electronique Industrielle, LEEI UMR-CNRS 5828, Toulouse, France; Department of Electrical Engineering, Tsinghua University, Beijing, China, E-mail: ; Li Yongdong ; Maurice Fadel ; Xiao Xi

This paper proposed a state observer based on extended Kalman Alter (EKF) for the rotor speed and load torque observation of permanent magnet synchronous motor (PMSM). This observer can be used to estimate the precise rotor position and rotor speed in the servo systems with only optical encoder of limited accuracy. By using the observed rotor speed and position instead of the values got directly from the encoder, the speed and position control performances can be greatly improved. The observer can also give the load torque which can be used as the feedforward compensation of the speed PI controller. The compensation can greatly improve the speed control performance during load torque change. The extended Kalman filter is used to solve the nonlinear equation of the observer, considering the influence of the parameter errors and the noise in measurement. So it is very robust to the parameter errors.

Published in:

Industrial Technology, 2006. ICIT 2006. IEEE International Conference on

Date of Conference:

15-17 Dec. 2006