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。
2
A nonlinear robust controller with a high gain observer (ONRC) was developed for a decentralized robust controller for use when not every derivative of the output is measurable.
为克服分散鲁棒控制器设计中输出量各阶导数可测要求的限制，设计了带有高增益观测器的非线性鲁棒控制器。
3
A novel fuzzy fractional order proportional integral derivative (FFPID) controller based on fractional calculus is presented.