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考虑推力陷阱的组合动力飞行器切换控制方法研究
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V249.1

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国家自然科学基金(62273249, 62373268, 62373273, 62073234, 62022060, 62103417)


A Switching Control Methodology for Hybrid Propulsion Aircraft in Consideration of Transition Thrust Pinch
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    摘要:

    针对组合动力飞行器动力切换时的推力陷阱问题,提出了一种考虑推力陷阱的组合动力飞行器切换控制方法。首先,针对组合动力飞行器正常飞行控制需求,基于超螺旋滑模控制方法,设计了正常飞行控制器,从而实现飞行器受扰动情况下的有限时间稳定跟踪参考指令;其次考虑组合动力飞行器动力切换引起的推力损失带来的控制约束,设计了输入约束控制器,实现模态转换阶段跟踪误差有限时间收敛的同时减小推力需求;然后考虑正常情况及模态转换阶段控制器的结合,设计了组合发动机软切换控制方法;最后通过仿真验证了所设计的控制器能够有效规避推力损失现象,并且能够有效保障切换控制系统的稳定性及鲁棒性。

    Abstract:

    In view of the issue of transition thrust pinch during power transitions in hybrid propulsion aircraft, a switching control method is proposed for hybrid propulsion aircraft considering thrust pinch.Firstly, for the normal flight control requirements of hybrid propulsion aircraft, a normal flight controller is designed by using a sliding mode control approach based on the super-twisting algorithm, enabling the aircraft to achieve finite-time stable tracking of reference commands in the presence of disturbances. Secondly, in consideration of the control constraints imposed by thrust losses during power transitions, an input-constrained controller is designed to facilitate limited-time convergence of tracking errors during the mode transition phase while reducing the demand for thrust. Furthermore, in combination with the controllers for a normal flight or on a mode transition phase, a soft switching control strategy for combined engine transitions is designed. Finally, the simulation experiments show that the designed controller can not only effectively avoid thrust loss phenomenon, and effectively ensure the stability and the robustness in the switching control system.

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张秀云,李梦龙,田栢苓,李智禹,宗 群.考虑推力陷阱的组合动力飞行器切换控制方法研究[J].空军工程大学学报,2024,25(2):21-31

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  • 在线发布日期: 2024-04-08
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