The invention discloses a symmetric thrust layout four-channel series-parallel hybrid engine control method and system. The method comprises the following steps: establishing a security boundary, and setting a limit protection strategy based on the security boundary; setting a modal switching control strategy by using the flight parameters based on a limit protection strategy; based on a mode switching control strategy, a sub PID controller is set, and an engine controller is constructed through a Max-Min high-low selection strategy; the fuel flow of the engine is adjusted based on the PID parameters optimized by the engine controller, and the thrust of the engine is controlled based on the function relation between the fuel flow of the engine and the corresponding output thrust; the PID control and the Max-Min high-low selection strategy are combined to be applied to the series-parallel TBCC engine control, meanwhile, the TBCC engine safety protection and mode switching control method is designed, by means of the technical scheme, the temperature and pressure of the TBCC engine in the flight process can be kept within the safety boundary range, and the TBCC engine safety protection and mode switching control method can be applied to the series-parallel TBCC engine control. Meanwhile, the relative error deviating from a reference thrust curve in the modal switching process is smaller than 10%.

    本发明公开了一种对称推力布局四通道串并混联发动机控制方法及系统;所述方法包括:建立安全边界,基于所述安全边界设定限制保护策略;基于限制保护策略,利用飞行参数设定模态切换控制策略;基于模态切换控制策略,设定子PID控制器并通过Max‑Min高低选策略构建发动机控制器;基于所述发动机控制器优化PID参数调节发动机燃油流量,基于发动机燃油流量与对应输出推力函数关系来对发动机的推力进行控制;本发明将PID控制与Max‑Min高低选策略结合应用于混联式TBCC发动机控制中,同时设计了TBCC发动机安全保护与模态切换控制方法,采用本发明技术方案可使得TBCC发动机在飞行过程中的温度、压力保持在安全边界范围内,同时在模态切换过程偏离参考推力曲线相对误差小于10%。


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    Title :

    Symmetrical thrust layout four-channel series-parallel hybrid engine control method and system


    Additional title:

    一种对称推力布局四通道串并混联发动机控制方法及系统


    Contributors:
    LIU LIJUN (author) / LI WEIZHOU (author) / YU ZHEN (author)

    Publication date :

    2023-02-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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