Infrared Technology, Volume. 43, Issue 2, 116(2021)

Composite Current Control Method for Small Inertia Infrared Stable Platforms

Hui XIONG*, Yu LIN, Yanwei ZHANG, Ruihua LI, Junyi SHU, Xinjie YAN, and Jianwei FENG
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  • [in Chinese]
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    Miniaturization and high dynamics are the development trends of infrared imaging stabilization platform technology. Owing to a small moment of inertia, traditional PI(Proportion Integral)-type current loop control cannot completely overcome the slope interference of the back electromotive force(back-EMF), which will reduce the dynamic response of small inertia infrared stable platforms. Concurrently, balancing dynamics and anti-disturbance performance is another difficulty with regard to high dynamic and small inertia infrared stable platform technology. To solve the a forenoted problems, a composite current control method based on dead-beat predictive control and extended state observation(ESO) is proposed in this paper, which effectively improves the dynamic response and anti-disturbance ability of small inertia infrared stable platforms. Simulation and experimental results show that the composite current control method reduces the settling time of the current loop of a small inertia infrared stable platform by 1/3. It also improves the dynamic performance and anti-disturbance performance of the speed response, and has good performance robustness.

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    XIONG Hui, LIN Yu, ZHANG Yanwei, LI Ruihua, SHU Junyi, YAN Xinjie, FENG Jianwei. Composite Current Control Method for Small Inertia Infrared Stable Platforms[J]. Infrared Technology, 2021, 43(2): 116

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    Paper Information

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    Received: Dec. 21, 2020

    Accepted: --

    Published Online: Aug. 23, 2021

    The Author Email: Hui XIONG (xh1270223693@163.com)

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