Application of linear active disturbance rejection control for photoelectric tracking system |
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| Authors: | Wang Wanting Guo Jin Jiang Zhenhua Wang Tingfeng |
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| Institution: | 1. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P.R.China;State Key Laboratory of Laser Interaction with Matter, Changchun 130033, P.R.China;University of Chinese Academy of Sciences, Beijing 100049, P.R.China;2. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P.R.China;State Key Laboratory of Laser Interaction with Matter, Changchun 130033, P.R.China |
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| Abstract: | Dynamic characteristics and tracking precision are studied in the photoelectric tracking system and a linear active disturbance rejection control ( LADRC) scheme is proposed for position loop.A current and speed controller is designed by a transfer function model,which is obtained by adaptive differential evolution.Model error, friction and nonlinear factor existing in position loop are treated as'disturbance', which is estimated and compensated by generalized proportional integral (GPI) observer.Comparative results are provided to demonstrate the remarkable performance of the pro-posed method.It turns out that the proposed scheme is successful and has superior features, such as quick dynamic response, low overshoot and high tracking precision.Furthermore, with the proposed method, friction is suppressed effectively. |
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| Keywords: | photoelectric tracking system linear active disturbance rejection control ( LADRC) generalized proportional integral observer adaptive differential evolution |
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