Improving Anti-Disturbance Capability of Fast Steering Mirror by Adaptive Robust Control

Wang Zhengxi; Zhang Bao; Li Xiantao

doi:10.3788/CJL201946.0905002

Chinese Journal of Lasers, Volume. 46, Issue 9, 905002(2019)

Improving Anti-Disturbance Capability of Fast Steering Mirror by Adaptive Robust Control

Wang Zhengxi^1,2, Zhang Bao^1、*, and Li Xiantao¹

¹Key Laboratory of Aviation Optical Imaging and Measurement, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China

²University of Chinese Academy of Sciences, Beijing 100049, China

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Figures & Tables(15)

Fig. 1. Structural diagram of FSM control system with disturbance

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Fig. 2. Principle diagram of disturbance observer

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Fig. 3. Principle diagram of ARC

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Fig. 4. Diagram of secondary stabilization system based on FSM

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Fig. 5. FSM model diagram

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Fig. 6. Comparison of scanning and fitting curves of FSM model

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Fig. 7. Principle diagram of resonance suppression by introducing velocity feedback

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Fig. 8. Open-loop frequency responses of FSM with and without rate feedback

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Fig. 9. Simulink simulation diagram of ARC system

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Fig. 10. Comparison of simulation results. (a) Step response curve; (b) steady-state error curve

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Fig. 11. FSM stability error curves without vibration disturbance. (a) PID; (b) PID+DOB; (c) PID+ARC

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Fig. 12. FSM stability error curves under vibration disturbance. (a) PID; (b) PID+DOB; (c) PID+ARC

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Fig. 13. FSM stability error spectra under vibration disturbance. (a) PID; (b) PID+DOB; (c) PID+ARC

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Table 1. Comparison of maximal and average steady-state errors and RMSE of fast FSM without vibrationdisturbance μrad
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Table 1. Comparison of maximal and average steady-state errors and RMSE of fast FSM without vibrationdisturbance μrad
Controlmethod Maximalsteady-state error Averagesteady-state error RMSE
PID 8.1872 1.0041 1.6938
DOB 67.8370 27.2953 33.4699
ARC 9.3568 1.9641 2.8877

Table 2. Comparison of maximal and average steady-state errors and RMSE of fast FSM with vibration disturbance μrad
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Table 2. Comparison of maximal and average steady-state errors and RMSE of fast FSM with vibration disturbance μrad
Controlmethod Maximalsteady-state error Averagesteady-state error RMSE
PID 190.0618 67.3275 82.4228
DOB 163.1598 34.4581 43.2125
ARC 59.6498 13.4877 17.0788

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Wang Zhengxi, Zhang Bao, Li Xiantao. Improving Anti-Disturbance Capability of Fast Steering Mirror by Adaptive Robust Control[J]. Chinese Journal of Lasers, 2019, 46(9): 905002

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Paper Information

Category: Beam transmission and control

Received: Apr. 15, 2019

Accepted: --

Published Online: Sep. 10, 2019

The Author Email: Bao Zhang (clearsky_zh@163.com)

DOI:10.3788/CJL201946.0905002

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Comparison of maximal and average steady-state errors and RMSE of fast FSM without vibrationdisturbance μrad

Table 1. Comparison of maximal and average steady-state errors and RMSE of fast FSM without vibrationdisturbance μrad

Table 2. Comparison of maximal and average steady-state errors and RMSE of fast FSM with vibration disturbance μrad

Table 2. Comparison of maximal and average steady-state errors and RMSE of fast FSM with vibration disturbance μrad