闭环网络控制系统全数字仿真实验方法的研究

Research on Method of Fully Digitized Simulation Experiment for Closed Loop Networked Control System

提出网络控制系统全数字仿真的方法,针对目前Matlab没有提供NCS仿真模块的现状,设计出能够真实再现网络环境的延时模块,并在此基础上开发出一套完整的网络控制仿真实验平台,只需一台计算机就能够完成包括网络数据包丢失和时序错乱等现象在内的各种NCS仿真实验,保证在进行NCS控制算法的比较研究时,网络延时状况是一致的。在该实验平台上进行NCS全数字仿真实验,结果证明以上方法的有效性。

Methods of fully digitized simulation for networked control system are introduced. A transport delay module that could truly reproduce the network environment was designed in order to solve the problem that Matlab didn't provide the NCS simulation module, and then a whole experiment platform for networked control system simulation was developed. Based on the platform, NCS simulation experiments including data packet dropout, wrong order of network packet and so on could be achieved in one computer, and it ensures the net delay is consistent when two NCS control arithmetics are compared. Experiments are performed to testify the feasibility of these methods.