Derivative action (referred to by the letter d) measures and responds to the rate of change of process signal, and adjusts the output of the controller to minimise overshoot.
微分动作(字母d表示)测量并对过程信号变化率进行反应，调整控制器的输出以达到最小的突出峰。
3
It describes the fuzzy PID-type controller design of the alkali boiler water level, the build of 2-d control table, the realization of the computer design and simulation of the controller.