【摘要】 利用自解耦控制方法(SDC)研究三容系统的液位控制。首先使用线性扩张状态观测器对三容系统中的耦合、非线性部分和扰动进行估计及补偿，进而通过设计合适的控制律来实现系统中每个子系统的自解耦。仿真结果表明，与传统的自抗扰控制相比，自解耦控制方法对期望的液位值具有良好的随动跟踪性能、较快的响应速度、鲁棒性更好。更多还原

【Abstract】 This paper made use of the self-decoupling control(SDC) method to study the liquid level control of a three-tank system.Firstly, a linear extended state observer was employed to estimate and compensate for the coupling, non-linear elements, and disturbances in the three-tank system.Subsequently, by designing appropriate control laws, the self-decoupling of each subsystem of the system was achieved.Simulation results indicated that compared with traditional active disturbance rejection control, the self-decoupling control method demonstrates great dynamic tracking performance for the desired liquid level values with faster response speed and better robustness.更多还原