基于系统特征数据辨识的控制器设计

介绍了一种基于系统特征数据的控制器设计算法.该算法仅根据被控对象的输入、输出采样数据,按照卷积定理计算出被控对象的单位脉冲响应作为系统的特征数据;在控制量约束条件下,根据特征数据以最速响应为控制目标规划出输出参考数据和最速控制律;然后根据控制目标和最速控制律的要求计算出理想控制器的特征数据;最后,根据控制器的特征数据辨识出线性控制器参数.仿真结果表明,控制结果具有最速参考控制的特征. 

Controller design based on the feature data of control systems

A method is introduced for designing a controller based on the feature data of a control system. According to the input and output data of a controlled object only, this method identifies an impulse response by means of the convolution theorem. The impulse response data are taken as the feature data of the control system. With the controlling signal in a certain scope, the output reference data and the fastest control signal are calculated according to the feature data to meet the requirements of the fastest response.Then the ideal feature data of the controller are worked out on the basis of the control goal and the fastest control signal. Finally the linear parameters of the controller are identified by the feature data. Simulation results show that the control result has the characteristic of the fastest reference control.