1.前言: 因一般调节器的PID参数是用手动给定的,所以在间断过程和负荷变化大的过程中PID参数不能自动地跟踪,因此也就不能获得理想的控制效果。同时即使依靠熟练的操作工人起动设备时也要借助仪表的帮助,如能自动地调整就理想了。本文叙述的自适应控制是按照过程的特性自动地给定PID参数的控制过程。其基本原理是在PID控制系统中让其产生小的极限振荡,测出其振荡周期,振幅和重叠信号的振幅,根据这些参数在过程中自动设定PID参数。为适应过程特性而修正调节器增益,所以必须在在线状态下对过程进行识别。理论上讲有输出,输入信号相关法,根据与 1. Introduction: Because the PID parameters of the general regulator are given manually, the PID parameters can not be automatically tracked during the interruption process and the load change is large, so the ideal control effect can not be obtained. At the same time, even if you rely on skilled workers to start the equipment with the help of the instrument, it is ideal if you can adjust automatically. This article describes the adaptive control is automatically given in accordance with the characteristics of the PID control process parameters. The basic principle is to let it generate a small limit oscillation in the PID control system and measure the amplitude of the oscillation period, amplitude and overlap signal, and automatically set the PID parameters in the process according to these parameters. To adjust the regulator gain to suit the process characteristics, the process must be identified online. In theory, there are output, input signal correlation method, according to