项目名称: 迭代变化因素下基于二维H∞理论的迭代学习控制方法研究
项目编号: No.61304087
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 自动化技术、计算机技术
项目作者: 祝乔
作者单位: 西南交通大学
项目金额: 25万元
中文摘要: 为实现完全跟踪,传统和基于二维系统的迭代学习控制研究通常需假定相同系统特性(即迭代不变的初始状态、参数、扰动、参考轨迹等)。然而,在实际控制系统中,很难满足严格的相同系统特性。因此,本课题拟针对迭代变化因素下的迭代学习控制问题,设计基于二维H∞理论的迭代学习控制器,实现完全跟踪和H∞最优跟踪性能。具体研究内容有: 1)针对线性离散系统,研究二维离散Roesser模型的H∞控制理论,建立输出反馈型二维H∞迭代学习控制器; 2)针对线性连续系统,研究二维连续离散Roesser模型的H∞控制理论,建立基于高阶内模的二维H∞迭代学习控制器; 3)针对含输入饱和及不可行参考轨迹的非线性仿射系统,研究二维非线性Roesser模型的H∞控制理论,建立轨迹生成器和二维H∞迭代学习控制器协调优化机制; 4)探索迭代学习控制方法在高炉布料器控制系统中的应用,设计实用的二维H∞迭代学习控制器,提高高炉布料效果。
中文关键词: 迭代学习控制;迭代变化因素;高阶内模;二维H∞理论;
英文摘要: In general, the system invariance property (e.g., iteration-invariant initial states, system parameters,disturbances, and reference trajectories) in classic and 2-D system based iterative learning control (ILC) is indispensable to achieve perfect tracking. However, for many practical control systems, the system invariance property is hardly achievable. Therefore, we will study the H∞ control theory of 2-D systems for the ILC design problems under iteration-varying factors. Then, based on the 2-D H∞ control theory, we will design 2-D H∞ ILC laws which can achieve the perfect tracking and H∞ optimal tracking performance. The details are as follows: 1)For the ILC design problem of linear discrete-time systems with iteration-varying factors, a output-feedback 2-D H∞ ILC design method will be presented by establishing the H∞ control theory of 2-D linear discrete Roesser models. 2)For the ILC design problem of linear continuous-time systems with iteration-varying factors, a high-order internal model based 2-D H∞ ILC design method will be presented by establishing the H∞ control theory of 2-D linear continuous-discrete Roesser models. 3) For the ILC design problem of nonlinear affine systems with iteration-varying factors, saturation and unfeasible trajectory, an optimization strategy of trajectory generator and 2-D
英文关键词: iterative learning control;iteration-varying factors;high-order internal model;2-D H∞ theory;