摘要
分数阶PID控制器较传统整数阶PID控制器增加了2个可调参数,使得其控制器的设计更加灵活,控制性能更加优良.针对网络控制系统(NCS)中的时延以及数据包丢失问题,提出对系统采用分数阶PID控制方法进行补偿,利用MATLAB/True Tim e仿真工具箱对NCS进行仿真研究.仿真实验结果表明,采用分数阶PID控制方法可以对时延以及数据包丢失问题进行有效的补偿,且控制效果明显优于整数阶PID方法.
Compared with the traditional integer-order PID controller, the fractional-order PID controller has two more adjustable parameters, so the latter can be designed flexibly and its control performance is better. Aimed at the existence of time-delay and data packet dropout in networked control system,a compensation method called fractional-order PID control is provided. Through the simulation using MATLAB/True Time toolbox, the efficiency of fractional-order PID control compensation method is confirmed, and this method is obviously more effective than integerorder PID control in compensating for time delay and data packet dropout.
出处
《南京信息工程大学学报（自然科学版）》
CAS
2009年第4期309-313,共5页
Journal of Nanjing University of Information Science & Technology（Natural Science Edition）
基金
国家863计划(2006AA040308)
关键词
网络控制系统
分数阶PID控制
整
数阶PID控制
时延
数据包丢失
networked control system
fractional-order PID control
integer-order PID control
time-delay
data packet dropout
