CAJ | 학술논문

针对一类多人多出系统的解耦问题,提出了一种基于扩张状态观测器(ESO)的动态解耦方法.将系统输入变量间的耦合作用,被控对象参数时变和外界干扰视为一个总的扰动,用ESO估计扰动并反馈到控制器进行补偿,从而实现动态解耦,对解耦后的子系统按照极点配置方法设计出控制器.采用"参数动态确定"法确定ESO的参数.上述动态解耦方法简化了解耦过程,放松了对系统模型精度的要求,计算量小,响应速度快,鲁棒性强.并通过对常压蒸馏塔模型进行仿真控制,并与模糊PID解耦控制方法对比,结果表明本方法有效可行.
침대일류다인다출계통적해우문제,제출료일충기우확장상태관측기(ESO)적동태해우방법.장계통수입변량간적우합작용,피공대상삼수시변화외계간우시위일개총적우동,용ESO고계우동병반궤도공제기진행보상,종이실현동태해우,대해우후적자계통안조겁점배치방법설계출공제기.채용"삼수동태학정"법학정ESO적삼수.상술동태해우방법간화료해우과정,방송료대계통모형정도적요구,계산량소,향응속도쾌,로봉성강.병통과대상압증류탑모형진행방진공제,병여모호PID해우공제방법대비,결과표명본방법유효가행.
For the problem of decoupling in a class of MIMO system,a dynamic decoupling control based on ESO was proposed.In this method,coupling from other inputs,parameters time-varying and external disturbances are all regarded as a total disturbance.The total disturbance Can be estimated by ESO and feedback to controller,and decoupling is achieved.The parameters of ESO ale adjusted through parameter dynamic determination.In this method,the decoupling is simplified,and the requirement of the plant model is reduced.The novel method can also achieve less calculation,faster response and better robustness.Finally,the method is used for distillation column control.The simulation result is siren and which shows the method is available.