模糊PID在网络控制系统中的仿真研究  

Simulation Research on Fuzzy PID in Network Control System

作　　者：冯冬青[1] 任雪梅[1] 

机构地区：[1]郑州大学电气工程学院,河南郑州450001

出　　处：《自动化仪表》2013年第1期61-63,68,共4页Process Automation Instrumentation

基　　金：国家自然科学基金资助项目(编号:60974005)

摘　　要：为了研究网络控制系统的特性,结合PID结构简单、稳定性好和模糊控制适应性强的特点,设计了模糊PID网络控制系统。综合分析了采样周期、时延、数据丢包率、网络传输速率、通信模式和扰动等主要因素对系统性能的影响,并给出了仿真曲线和分析结果。仿真结果表明,与PID网络控制系统相比,模糊PID网络控制系统具有较好的控制效果。利用TrueTime工具箱,该系统能够比较全面地分析网络控制系统的性能。In order to study the characteristics of network control system, the fuzzy PID network control system has been designed, which combined the good performance of PID having simple structure and stability ; as well as the strong adaptability of fuzzy control. The main factors influencing the performance of the system, including sampling period, time delay, loss rate of data packets, network transmission rate, communication mode, and disturbance, etc., are analyzed compositely, and the simulation curves and analysis results are given. The simulation results show that comparing with PID network control system, the fuzzy PID network control system offers better control effects; and the performance of network control system can be analyzed more comprehensively by using TrueTime toolbox.

关 键 词：网络控制系统 模糊PID A D转换器 实时控制 网络延时 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]