PID参数继电反馈整定法的改进

摘要

In this paper,the relay feedback tuing method of PID parameters is improved.An integrator is set between the relay and controlled object. High frequency signal is weaken, the proportion of the fundamental wave in the harmonic wave is increased and the accuracy of describing function is improved.On this occasion,new tuing equations is presented. Practical emulation proves that the tuning method after improvement can get better performance than Astrom method and PM method.%提出了一种改进的继电整定法，在继电环节和被控对象之间设置一个积分器。促进了高频信号的衰减。使谐波中的基波成分所占比例得到提高，改善了描述函数的精度，并在此情况下推导出了新的整定公式。通过仿真证明。利用改进后的方法进行PID参数整定比传统的Astrom法和PM法性能更加优越。