Fuzzy Proportional Integral Derivative control of a voice coil actuator system for adaptive deformable mirrors  

作　　者：Ziqiang Cui Heng Zuo Weikang Qiao Hao Li Fujia Du Yifan Wang Jinrui Guo 

机构地区：[1]Nanjing Institute of Astronomical Optics&Technology,Chinese Academy of Sciences,Nanjing 210042,China [2]CAS Key Laboratory of Astronomical Optics&Technology,Nanjing Institute of Astronomical Optics&Technology,Nanjing 210042,China [3]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Astronomical Techniques and Instruments》2024年第3期179-186,共8页天文技术与仪器（英文）

基　　金：supported by the National Key R&D Program of China (2022YFA1603001,2021YFC2801402);the National Nature Science Foundation of China (12073053);the Science and Technology Plan of Inner Mongolia (2021GG0245).

摘　　要：Research on adaptive deformable mirror technology for voice coil actuators(VCAs)is an important trend in the development of large ground-based telescopes.A voice coil adaptive deformable mirror contains a large number of actuators,and there are problems with structural coupling and large temperature increases in their internal coils.Additionally,parameters of the traditional proportional integral derivative(PID)control cannot be adjusted in real-time to adapt to system changes.These problems can be addressed by introducing fuzzy control methods.A table lookup method is adopted to replace real-time calculations of the regular fuzzy controller during the control process,and a prototype platform has been established to verify the effectiveness and robustness of this process.Experimental tests compare the control performance of traditional and fuzzy proportional integral derivative(Fuzzy-PID)controllers,showing that,in system step response tests,the fuzzy control system reduces rise time by 20.25%,decreases overshoot by 78.24%,and shortens settling time by 67.59%.In disturbance rejection experiments,fuzzy control achieves a 46.09%reduction in the maximum deviation,indicating stronger robustness.The Fuzzy-PID controller,based on table lookup,outperforms the standard controller significantly,showing excellent potential for enhancing the dynamic performance and disturbance rejection capability of the voice coil motor actuator system.

关 键 词：Adaptive optics Deformable mirror Voice coil actuator Fuzzy control 

分 类 号：P111[天文地球—天文学]