摘要
提出了一种引入继电反馈的自整定ＰＩＤ控制器，在线测出过程对象两点的频率特性，辨识出二阶纯滞后的模型，基于相位、幅值裕度整定出ＰＩＤ参数。还介绍了该方法适应范围，仿真实验又仿真结果。
A self-tuning PID controller with relay feedback is introduced. In this controller the frequency characteristics at two points of the process object are measured and the model of the second order dead time is recognized. Based on the phase and amplitude abundance the PID parameters are tuned. The applicable scope of this method and the results of experiment and simulation are also presented.
出处
《自动化仪表》
CAS
北大核心
2000年第8期9-13,共5页
Process Automation Instrumentation
关键词
自整定PID控制器
频域辨识
频率特性
鲁棒性
PID control Self-tuning Relay feedback Frequency characteristic Robustness
