Position control of DC-motor based on sliding mode variable structure and high-gain observer

doi:10.3969/j.issn.0253-2778.2018.01.011

Journal of University of Science and Technology of China ›› 2018, Vol. 48 ›› Issue (1): 82-88.DOI: 10.3969/j.issn.0253-2778.2018.01.011

• Original Paper • Previous Articles

Position control of DC-motor based on sliding mode variable structure and high-gain observer

TANG Wenxiu, XI Wenlong, LI Zhipeng, WU Junying

1. College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, China;
2. Traffic College, Northeast Forestry University, Harbin 150040, China
）

Received:2017-04-01 Revised:2017-08-15 Online:2018-01-01 Published:2018-01-01

Abstract

Abstract: A position sliding mode control method based on a high-gain observer is proposed for DC-motor position tracking control. The state space expression of the DC-motor is established. A high-gain observer is designed to observe the speed, current and their derivative signals. The accuracy and stability of the observer is guaranteed by placing suitable poles. The exponential reaching law of sliding mode variable structure is improved. The position tracking control of the DC-motor is realized by adopting the position

Key words: high-gain observer, sliding mode variable structure, exponential reaching law, position control

CLC Number:

TP273

TANG Wenxiu, XI Wenlong, LI Zhipeng, WU Junying. Position control of DC-motor based on sliding mode variable structure and high-gain observer[J]. Journal of University of Science and Technology of China, 2018, 48(1): 82-88.

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Position control of DC-motor based on sliding mode variable structure and high-gain observer

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