机载光电稳定平台的强鲁棒性滑模变结构控制
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Strong Robust Sliding Mode Variable Structure Control in Airborne Photoelectric Stabilized Platform
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    摘要:

    为使机载光电稳定平台系统在复杂环境下仍具有强鲁棒性,建立光电稳定平台数学模型。以两轴四框架 光电吊舱为研究对象,通过分析噪声干扰及本身结构参数的变化对光电稳定平台的影响,提出基于干扰观测器 (disturbance observer,DOB)的滑模控制器设计方案。理论推导和仿真结果表明:滑模变结构控制(sliding mode variable structure control,SMVSC)对干扰力矩和摄动完全适应,对系统结构参数变化和外界扰动具有良好的鲁棒性;比无干 扰观测器的控制系统,拥有更高的稳定精度和更快的动态响应,能增强光电稳定平台的抗扰动能力。

    Abstract:

    In order to make the airborne optoelectronic stabilized platform system still have strong robustness in complex environments, a mathematical model of the optoelectronic stabilized platform is established. Taking the two-axis four-frame photoelectric pod as the research object, by analyzing the influence of noise interference and changes in its structural parameters on the photoelectric stabilized platform, a design scheme of sliding mode controller based on disturbance observer (DOB) is proposed. Theoretical derivation and simulation results show that: sliding mode variable structure control (SMVSC) is fully adaptable to disturbance torque and perturbation, and has good robustness to system structural parameter changes and external disturbances; it has higher performance than control systems without disturbance observers. Stable a

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马经帅.机载光电稳定平台的强鲁棒性滑模变结构控制[J].,2021,40(5).

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  • 收稿日期:2021-01-09
  • 最后修改日期:2021-02-23
  • 在线发布日期: 2021-06-02
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