The time domain guideposts requirements of a pump-motor system is transfered into a series of constraints which express the robust performance upper bound and regional poles limits of the closed loop system. Then the ...The time domain guideposts requirements of a pump-motor system is transfered into a series of constraints which express the robust performance upper bound and regional poles limits of the closed loop system. Then the servo system control problem is transferred into the problem of robust performance optimizing under regional poles constrains described by linear matrix inequality （LMI）. These LMIs are easy to solve through the Matlab LMI-toolbox. Simulations indicate that the controller has excellent dynamic, static and disturbance rejection performance, and the control system is robust and has perfect H2 performance to the bounded external torque disturbance.展开更多
为了降低磕头式抽油机的能量损耗,设计了一种节能型液压抽油机。根据设计的液压原理图,在AMESim仿真软件中完成液压系统仿真建模,在分析位置闭环控制系统时,最终采用位置闭环反馈结合前馈补偿的复合校正控制方案,具有最优控制效果;单一...为了降低磕头式抽油机的能量损耗,设计了一种节能型液压抽油机。根据设计的液压原理图,在AMESim仿真软件中完成液压系统仿真建模,在分析位置闭环控制系统时,最终采用位置闭环反馈结合前馈补偿的复合校正控制方案,具有最优控制效果;单一油缸在行程止点的位置误差为±1 mm,理论消耗能量达到7 k W,整体响应时间缩短,满足设备指标要求,对于工作过程中的位置偏差具有一定的抗干扰能力。展开更多
文摘The time domain guideposts requirements of a pump-motor system is transfered into a series of constraints which express the robust performance upper bound and regional poles limits of the closed loop system. Then the servo system control problem is transferred into the problem of robust performance optimizing under regional poles constrains described by linear matrix inequality （LMI）. These LMIs are easy to solve through the Matlab LMI-toolbox. Simulations indicate that the controller has excellent dynamic, static and disturbance rejection performance, and the control system is robust and has perfect H2 performance to the bounded external torque disturbance.
文摘为了降低磕头式抽油机的能量损耗,设计了一种节能型液压抽油机。根据设计的液压原理图,在AMESim仿真软件中完成液压系统仿真建模,在分析位置闭环控制系统时,最终采用位置闭环反馈结合前馈补偿的复合校正控制方案,具有最优控制效果;单一油缸在行程止点的位置误差为±1 mm,理论消耗能量达到7 k W,整体响应时间缩短,满足设备指标要求,对于工作过程中的位置偏差具有一定的抗干扰能力。
