刘为杰, 凌忠伟, 邓晓曼, 等. 风洞流场抗时变干扰控制研究[J]. 实验流体力学, doi: 10.11729/syltlx20230093.
引用本文: 刘为杰, 凌忠伟, 邓晓曼, 等. 风洞流场抗时变干扰控制研究[J]. 实验流体力学, doi: 10.11729/syltlx20230093.
LIU W J, LING Z W, DENG X M, et al. Research on anti time-varying disturbance control of wind tunnel flow field[J]. Journal of Experiments in Fluid Mechanics, doi: 10.11729/syltlx20230093.
Citation: LIU W J, LING Z W, DENG X M, et al. Research on anti time-varying disturbance control of wind tunnel flow field[J]. Journal of Experiments in Fluid Mechanics, doi: 10.11729/syltlx20230093.

风洞流场抗时变干扰控制研究

Research on anti time-varying disturbance control of wind tunnel flow field

  • 摘要: 时变干扰问题在风洞流场控制中普遍存在,其中比较常见和典型的是跨声速连续变迎角试验中迎角对马赫数控制带来的干扰。为了在存在时变干扰情况下提高流场控制精度,创新的提出了一种新型的前馈 + 反馈复合控制方案。前馈控制采用基于超前校正的增量式扩张状态观测器(Lead Correction based Incremental Extend State Observer,LIESO),反馈控制采用增量式比例积分(Proportional-Integral,PI)控制。以1.2 m跨超声速风洞连续变迎角试验为研究对象,对该复合控制方法进行试验验证。试验结果表明:LIESO + PI复合控制对时变干扰抑制效果显著,鲁棒性较好,对不同的模型堵塞度、试验马赫数适应性较好,具有较好的工程应用价值。

     

    Abstract: The time-varying disturbance problems are common in wind tunnel flow field control, the most typical of which is the disturbance of Mach number control caused by angle of attack in the transonic continuous sweep angle of attack test. In order to improve the accuracy of flow field control in the presence of time-varying disturbance, a novel feed-forward feedback composite control scheme is innovatively proposed. The feed-forward control is based on phase Lead Correction based Incremental Extend State Observer(LIESO), and the feedback control is based on the incremental Proportional-Integral(PI) control. The research on the transonic continuous sweep angle of attack test in the 1.2 m trans-supersonic wind tunnel is carried out to verify the composite control method. The test results show that: the LIESO + PI composite control method has remarkable effect on time-varying disturbance suppression, and good robustness, good adaptability to different model blockage and test Mach numbers, and has good engineering application value.

     

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