Control system for coarse tracking turntable of laser communication between satellites

doi:10.37188/OPE.20212912.2797

CIOMP OpenIR

	Control system for coarse tracking turntable of laser communication between satellites
	W.-J. Wang; W. Xu; Y.-J. Piao; R.-P. Feng and M.-L. Zhou
	2021
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	1004924X
卷号	29 期号:12 页码:2797-2805
摘要	With regard to meeting the highly dynamic and steady-state performance of the coarse tracking system used for laser communication in a satellite, under the action of the step signal, the ordinary PID control has drawbacks such as large step response overshoot and long adjustment time to fulfill the engineering requirements. This study uses permanent magnet synchronous motor (PMSM) as the control object to establish a three-loop control model of the coarse tracking system and performs MATLAB simulation analysis. An adaptive gain control is proposed on the basis of ordinary PI control, and theoretical proof and simulation are executed. It provides a new method for the tracking system to shorten the adjustment time and reduce the overshoot. The tracking system is controlled by the FPGA main control unit. In the ground test, under the excitation of a 187.25 rad (500 yard) step signal, the improved adaptive gain control strategy is better than ordinary PI control, the overshoot is reduced from 35.8 % to 10%, and the adjustment time of the system is shortened from 100 ms to 70 ms. The state accuracy is maintained at 2.247 rad(3 yards), and the control performance is significantly improved. Under orbital conditions, the adaptive gain control strategy shows good control performance, meeting the high precision requirements of the tracking turntable used for inter-satellite laser communication, and it has reference significance for the design of other high-precision servo systems. 2021, Science Press. All right reserved.
DOI	10.37188/OPE.20212912.2797
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收录类别	EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65113
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	W.-J. Wang,W. Xu,Y.-J. Piao,et al. Control system for coarse tracking turntable of laser communication between satellites[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2021,29(12):2797-2805.
APA	W.-J. Wang,W. Xu,Y.-J. Piao,&R.-P. Feng and M.-L. Zhou.(2021).Control system for coarse tracking turntable of laser communication between satellites.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,29(12),2797-2805.
MLA	W.-J. Wang,et al."Control system for coarse tracking turntable of laser communication between satellites".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 29.12(2021):2797-2805.

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