A modified instantaneous speed observer design for brushless AC motors

Ming Shyan Wang, Po Jui Hsiao, Nguyen Thi Hanh, Tzuu Hseng S. Li

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

Low speed control of servo systems is required in some applications. Motor speed is generally acquired from the so-called M method, which averages the number of pulses from the coupled encoder by a fixed time period. As a result, a long detection delay time, due to speeds lower than the minimum measurable value determined by the sampling frequency and the resolution of the encoder, may degrade the performance or even make system unstable. Instantaneous speed observers and/or disturbance torque observers provide merits of simple structure and easy implementation. However, this method is obsessed by the sensitivity to the instantaneous speed estimation due to the parameter variations. In this paper, a simply modified instantaneous speed observer is proposed to overcome the sensitivity problem. The experimental results without and with load will verify the effectiveness of the proposed algorithm such that the controllable motor speed is much lower than the minimum measurable value.

原文English
主出版物標題2010 International Conference on System Science and Engineering, ICSSE 2010
頁面481-485
頁數5
DOIs
出版狀態Published - 2010 十月 11
事件2010 International Conference on System Science and Engineering, ICSSE 2010 - Taipei, Taiwan
持續時間: 2010 七月 12010 七月 3

出版系列

名字2010 International Conference on System Science and Engineering, ICSSE 2010

Other

Other2010 International Conference on System Science and Engineering, ICSSE 2010
國家Taiwan
城市Taipei
期間10-07-0110-07-03

All Science Journal Classification (ASJC) codes

  • Computational Theory and Mathematics
  • Computer Science Applications
  • Information Systems
  • Control and Systems Engineering

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