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    Este estudio presenta un método de control intermitente difuso para sistemas complejos no lineales con retrasos, asegurando la estabilidad utilizando modelos de Takagi-Sugeno y funciones de Lyapunov. El enfoque está validado para el control de cohetes hipersónicos.

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    Área de la Ciencia:

    • Teoría de control
    • Sistemas no lineales
    • Lógica difusa

    Sus antecedentes:

    • Los sistemas no lineales acoplados de ecuación diferencial parcial retrasada-ecuación diferencial ordinaria (PDE-ODE) presentan desafíos de control significativos.
    • Las mediciones espaciales promediadas (SAM) ofrecen un enfoque práctico para el monitoreo del sistema.

    Objetivo del estudio:

    • Desarrollar un método de control intermitente difuso para sistemas de PDE-ODE retrasados acoplados no lineales.
    • Para asegurar la estabilidad exponencial de estos sistemas complejos.

    Principales métodos:

    • Modelado de los sistemas utilizando el modelo difuso PDE-ODE de Takagi-Sugeno (T-S).
    • Diseño de controladores intermitentes difusos basados en una función de conmutación de Lyapunov (LF).
    • Utilizando desigualdades de matriz lineal dependientes del espacio (SDLMIs) para establecer las condiciones de estabilidad.

    Principales resultados:

    • Se derivaron condiciones suficientes para la estabilidad exponencial.
    • El método de control intermitente difuso propuesto demostró su eficacia.
    • La estrategia de control se aplicó con éxito a un modelo de coche cohete hipersónico (HRC).

    Conclusiones:

    • El método de control intermitente difuso proporciona una solución robusta para la estabilización de sistemas PDE-ODE acoplados no lineales.
    • El uso de modelos difusos T-S y funcionales de Lyapunov es efectivo para esta clase de sistemas.
    • El enfoque es práctico y validado a través de simulaciones en una aplicación compleja.