If we plot percent overshoot versus rise time we will generate a series of points, each of which corresponds to a different set of PID gains.
如果我们绘制百分比过冲与上升时间表，我们将得到一系列的点，每个点对应一个不同的PID增益集。
Whats more, SG parameters undergo large changes according to different operational conditions. The SG cannot work satisfactorily with conventional fixed PID gains over full operating range.
而且SG参数随着不同运行工况变化而变化，传统的固定参数PID控制系统难以在全功率范围内取得令人满意的结果。
Today when computer technology be widely used, PID control method gains farther development.
在计算机技术普及的今天，PID控制技术得到了进一步的完善。
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