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Alternative TitleAn Experimental Study on Hysteresis Characteristics of Fast Steering Mirror Driven by Piezoelectric Actuator
于志亮; 姜晓明; 王岩; 曹开锐; 李松
Source Publication光学学报
Contribution Rank4
Funding Organization国家科技重大专项(No.2009ZX02207) ; 国家自然科学基金重点项目(No.51537002) ; 国家青年自然科学基金(61503096)
Keyword快速倾斜镜 压电陶瓷执行器 迟滞特性 改进pi迟滞模型
Other AbstractIn a precision pointing system for space optical communication, the hysteresis nonlinearity of the fast steering mirror (FSM) driven by the piezoelectric actuator (PZT) will not only reduce its pointing accuracy greatly, but also affect the acquisition of beacon and link stability. To address this issue, an improved Prandtl-Ishlinskii (PI) model based on the PLAY hysteresis operator and parameter identification method are presented, and on this basis, a feedforward linearization method for the FSM was proposed. In order to improve tracking precision of the FSM, the static output feedback controller of the compound control method is designed for the linearized model. The experiments are implemented in the precision pointing principle prototype for space optical communication. The experiments are used to validate the effectiveness of the compound method, in which different frequency and amplitude sine signals are input. The performance of the compound method is verified by experiments using control signals with different frequencies, and constant and decreasing amplitudes respectively. The experimental results show that the inverse of this model with maximum error less than 1% is employed for feedforward compensation of the PZT hysteresis. The results shows that the feedforward inverse model compensation can reduce the linearity error of the PZT from 5% to less than 1%, which satisfy the demand for precision control of the FSM. Tracking errors of the system by using the compound method are reduced by 80%.
Document Type期刊论文
Corresponding Author于志亮
Recommended Citation
GB/T 7714
于志亮,姜晓明,王岩,等. 压电式快速倾斜镜迟滞特性及实验研究[J]. 光学学报,2018.
APA 于志亮,姜晓明,王岩,曹开锐,&李松.(2018).压电式快速倾斜镜迟滞特性及实验研究.光学学报.
MLA 于志亮,et al."压电式快速倾斜镜迟滞特性及实验研究".光学学报 (2018).
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