Composite Current Control Method for Small Inertia Infrared Stable Platforms

XIONG Hui; LIN Yu; ZHANG Yanwei; LI Ruihua; SHU Junyi; YAN Xinjie; FENG Jianwei

Volume 43 Issue 2

Mar. 2021

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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): 116-126.

Citation:

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): 116-126.

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Composite Current Control Method for Small Inertia Infrared Stable Platforms

Kunming Institute of Physics, Kunming 650223, China

Received Date: 2020-12-21
Rev Recd Date: 2021-01-06
Publish Date: 2021-02-20

Abstract

Abstract

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.
- infrared stable platform,
- small moment of inertia,
- current loop,
- composite control

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References(16)

References

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