摘要
机电装置的动力学模型是研究装置特性、开展控制器设计的基础.本文对机电控制系统设计中的实验建模问题进行了研究.提出了使用dSPACE半实物仿真系统进行机电装置频域特性测试和模型辨识的数字化测试方法,从理论上推导了频响函数的最佳估计原理,从实际上分析了测试参数的选取原则,并给出了实验和分析结果.使用该方法可以方便地得到被测系统的频率特性曲线和传递函数解析式,并能将模型参数导入Matlab控制工具箱进行控制器的设计,为进一步开展机电装置的动力学和控制综合优化问题提供了有效手段.
Based on the research on how to build up the model of a mechatronics control system, this paper proposed a digital measuring approach implemented with the Semi - practical Simulink system of dSPACE, which can be used to test the frequency response and identify the model of the mechatronics equipment. The optimal estimate principile of the frequency response function was deduced theoretically, the principle of selecting testing parameters was analyzed practically, and the analytic and experimental results were provided. With this approach, it＇ s very convenient to work out the frequency characteristic curve and the transfer function expression of the system, as well as to import the model parameters to Matlab Controlling Toolbox to design the controller. So, it provides an efficient means to improve the dynamic issues on mechatronics equipments and the cybernatic issues on synthetical optimization.
出处
《动力学与控制学报》
2007年第1期92-96,共5页
Journal of Dynamics and Control
