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.
整合动作是通过连续的自动的调整控制器的输出进而排除误差的方法，调整时依据一段时间内的控制误差来进行。
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.
这样不仅可以做到速度的实时反馈和调整，而且由于PI调节器的积分作用，可以使系统在稳态时做到速度无静差。