integral action time

基本解释

The function of integral action is to eliminate offset by continuously and automatically modifying the controller output in accordance with the control deviation integrated over time.
整郃動作是通過連續的自動的調整控制器的輸出進而排除誤差的方法，調整時依據一段時間內的控制誤差來進行。
zhangxiangzhi112.blog.163.com
So it not only achieves the real-time feedback and the regulation of speed but also eliminate the static error of speed due to the integral action of PI regulator when the system is in a steady state.
這樣不僅可以做到速度的實時反餽和調整，而且由於PI調節器的積分作用，可以使系統在穩態時做到速度無靜差。