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Research on the continuous positioning control to servo-pneumatic system

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An Erratum to this article was published on 07 September 2013

Abstract

Pneumatic driven system has been widely used in industrial automation mainly for relatively simply tasks with open-loop control. With regard to closed-loop controlled axes in robotics, servo-electric driven systems have been dominant up to now. This paper introduces a new closed-loop control servo-pneumatic system that can do continuous positioning. The mathematical model of the servo-pneumatic system was developed accurately through analysis of the flow characteristics of the proportional flow valve and the friction of the cylinder. The optimum control strategy with friction compensation is presented in this paper. Experiments demonstrate that the servo-pneumatic system has excellent tracking characteristics and can rival the expensive servo-electric system in many areas of industrial control.

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Authors and Affiliations

  1. The State Key Laboratory of Fluid Power Transmission and Control of Zhejiang University, 310027, Hangzhou, China

    Tao Guo-liang, Wang Xuan-yin & Lu Yong-xiang

Authors
  1. Tao Guo-liang
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  2. Wang Xuan-yin
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  3. Lu Yong-xiang
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Additional information

Project supported by the National 863/Robot (No. 863-512-9934-05) and Zhejiang Science and Technology Office (No. 001606128).

An erratum to this article is available at http://dx.doi.org/10.1631/jzus.2001.e128.

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Guo-liang, T., Xuan-yin, W. & Yong-xiang, L. Research on the continuous positioning control to servo-pneumatic system. J. Zhejiang Univ. Sci. A 2, 128–131 (2001). https://doi.org/10.1631/jzus.2001.0128

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  • DOI: https://doi.org/10.1631/jzus.2001.0128

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