Design of the control system for the coarse tracking turntable of the laser communication between satellite
|更新时间:2021-11-29
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Design of the control system for the coarse tracking turntable of the laser communication between satellite
Optics and Precision EngineeringPages: 1-9(2021)
作者机构:
1.中国科学院 长春光学精密机械与物理研究所,吉林 长春 130033
2.中国科学院大学,北京 100049
3.中国科学院 天基动态快速光学成像技术重点实验室,吉林 长春 130033
作者简介:
基金信息:
DOI:
CLC:TP394.1;TH691.9
Received:29 March 2021,
Revised:21 July 2021,
稿件说明:
移动端阅览
王文杰,徐伟,朴永杰等.卫星星间激光通信粗跟踪转台控制系统设计[J].光学精密工程,
WANG Wen-jie,XU Wei,PIAO Yong-jie,et al.Design of the control system for the coarse tracking turntable of the laser communication between satellite[J].Optics and Precision Engineering,
WANG Wen-jie,XU Wei,PIAO Yong-jie,et al.Design of the control system for the coarse tracking turntable of the laser communication between satellite[J].Optics and Precision Engineering,DOI:10.37188/OPE.XXXXXXXX.0001
Design of the control system for the coarse tracking turntable of the laser communication between satellite
In order to meet the high dynamic performance and steady-state performance of the coarse tracking system used for laser communication on the satellite, under the action of the step signal, ordinary PID control has the problem of large step response overshoot and too long adjustment time to meet the engineering requirements. If necessary, this article uses permanent magnet synchronous motor (PMSM) as the control object to establish a three-loop control model of the coarse tracking system, and perform matlab simulation analysis. An adaptive gain control is proposed on the basis of ordinary PI control, and theoretical proof and simulation are carried out. It provides a new method for the tracking system to shorten the adjustment time and reduce the overshoot. The tracking system is controlled under the control of the FPGA main control unit. In ground test, under the excitation of 500 yards (187.25 urad) step signal, the improved adaptive gain control strategy is better than ordinary PI control, the overshoot is reduced from 25.7% to 10.5%, and the adjustment time of the system is shortened from 95ms to 70ms. The state accuracy is maintained at±3 yards (2.247urad), and the control performance is significantly improved. Under orbital conditions, the adaptive gain control strategy also shows good control performance, meeting the high precision requirements of the tracking turntable used for inter-satellite laser communication, and at the same time has reference significance for the design of other high-precision servo systems.
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