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Open AccessArticle

Proximate Time-Optimal Servomechanism Based on Transition Process for Electro-Optical Set-Point Tracking Servo System

by Qianwen Duan 1,2,3, Qiunong He 1,2,3, Yao Mao 1,2,3,*, Xi Zhou 1,2,3 and Qintao Hu 1,2,3
1
Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu 610209, China
2
Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
3
University of Chinese Academy of Sciences, Beijing 100049, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(23), 5201; https://doi.org/10.3390/app9235201
Received: 28 September 2019 / Revised: 24 November 2019 / Accepted: 25 November 2019 / Published: 29 November 2019
(This article belongs to the Section Electrical, Electronics and Communications Engineering)
Set-point tracking servo systems encounter the problem of the trade-off between the swiftness and smoothness in tracking task. To deal with this problem, the proximate time-optimal servomechanism based on transition process (PTSTP) is proposed in this paper. The PTSTP control scheme incorporates a transition process (TP) into the framework of proximate time-optimal servomechanism (PTOS) to eliminate the conservatism of the original PTOS without the controller changing. The target position signal amplitude and the ultimate ability of actuator are utilized to design the time-optimal TP to make the jumping target position signal turns to a smooth signal, which can significantly reduce system overshoot. Therefore, the system swiftness and smoothness performance are guaranteed by PTSTP. Then, the stability of the proposed method is analyzed theoretically. Finally, the experimental results show that the controlled system is able to track the target position signal with different amplitude fast and smoothly in an electro-optical set-point tracking servo system. View Full-Text
Keywords: set-point tracking; transition process; proximate time-optimal servomechanism set-point tracking; transition process; proximate time-optimal servomechanism
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Duan, Q.; He, Q.; Mao, Y.; Zhou, X.; Hu, Q. Proximate Time-Optimal Servomechanism Based on Transition Process for Electro-Optical Set-Point Tracking Servo System. Appl. Sci. 2019, 9, 5201.

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