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

LIU Weijie; LING Zhongwei; DENG Xiaoman; YAN Cheng; CHEN Haifeng; XIAO Jin

doi:10.11729/syltlx20230093

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Article Navigation > Journal of Experiments in Fluid Mechanics > 2023 > Accepted Manuscript

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

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

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

doi: 10.11729/syltlx20230093

High Speed Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang　621000, China

Received Date: 2023-07-20
Accepted Date: 2023-09-27
Rev Recd Date: 2023-09-25

Available Online: 2023-11-06

Abstract

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.
- time-varying disturbance,
- extend state observer,
- lead correction,
- incremental controller,
- composite control

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References(16)

References

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