Since the response of a HVDC plant dynamically changes with variations in the operating point, a PI controller performance is far from optimum.
由于HVDC系统的响应随运行状态的变化而改变，使得电压互感器控制器的性能很难实现最优。
For the flow regulation of the controllable traffic in high-speed computer networks, optimization of control parameters directly influence on a PI controller.
对于计算机高速网络中能控交通流的调节，PI控制器的参数优化直接影响控制系统的性能。
However, it is an effective way of overcoming the instability to design a PI controller, to select proper parameters, to set up a digital model and to simulate a control system.
本文对风力矩作用下的雷达接收系统建立数学模型，适当选择结构参数，设计PI控制器并对控制系统进行仿真，是一种在自动控制中工程设计的有效实用的方法。
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