可逆冷带轧机速度张力系统的耗散Hamilton控制  

Dissipative Hamilton control for speed and tension system of reversible cold strip rolling mill

作　　者：刘乐[1] 方一鸣[1,2] 李建雄[1] 常茹[1] 

机构地区：[1]燕山大学工业计算机控制工程河北省重点实验室,河北秦皇岛066004 [2]燕山大学国家冷轧板带装备及工艺工程技术研究中心,河北秦皇岛066004

出　　处：《控制与决策》2015年第6期985-992,共8页Control and Decision

基　　金：国家自然科学基金项目(61074099);河北省高等学校创新团队领军人才培育计划项目(LJRC013)

摘　　要：研究基于侵入与不变流形(I&I)自适应方法和非线性干扰观测器(NDO)的可逆冷带轧机速度张力系统耗敞Hamiltou控制问题.首先采用I&I自适应方法估计系统的摄动参数;其次,通过预反馈建立系统速度张力外环的耗散Hamilton模型,并利用互联和阻尼配置以及能量整形方法设计耗散Hamilton控制器;再次,选用NDO对系统电流内环的外扰进行观测,并引入设计的积分滑模控制器中进行补偿;最后将该方法应用于某1 422mm可逆冷带轧机速度张力系统中进行仿真,结果验证了所提出方法的有效性.Dissipative Hamilton control problem for the speed and tension system of the reversible cold strip rolling mill is studied based on the immersion and invariance（I＆amp;I） adaptive method and the nonlinear disturbance observer（NDO）. Firstly, the I＆amp;I adaptive method is used to estimate the perturbation parameters of the system. Next, the dissipative Hamilton model of the speed and tension outside loop is built after pre-feedback control, and dissipative Hamilton controllers are designed by utilizing the interconnection and damping assignment, and energy shaping method. Further more, external disturbances in the system current inside loop are observed by NDOs, and the observed values are introduced into the integral sliding mode controllers for compensation. Finally, a simulation is carried out on the speed and tension system of a 1422 mm reversible cold strip rolling mill, and results show the effectiveness of the proposed control strategy.

关 键 词：可逆冷带轧机 速度张力系统 协调控制 非线性干扰观测器 侵入与不变流形 耗散Hamilton控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]