PID参数介绍
在工程实际中，应用最为广泛的调节器控制规律为比例、积分、微分控制，简称PID控制，又称PID调节。
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PID三个参数的意义
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[*]控制器的输出与输入误差信号成比例关系，当仅有比例控制时系统输出存在稳态误差。
[*]比例控制的比例系数如果太小，系统输出量变化缓慢，使调节所需的总时间过长。
[*]比例系数如果过大，调节力度太强，将造成调节过头，甚至使温度忽高忽低，来回震荡.
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[*]控制器的输出与输入误差信号的积分成正比关系。
[*]积分作用太弱，则消除稳态误差的速度太慢，积分时间的值应取得适中。
[*]积分作用太强，累积的作用会使系统输出的动态性能变差，超调量增大，使系统不稳定。
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[*]微分时间 D 是根据差值信号变化的速率，提前给出一个相应的调节动作。
[*]微分时间越大，微分作用越强，如果微分时间太大，在误差快速变化时，响应曲线上会出现“毛刺”。
[*]微分时间越小，作用越弱，当微分时间等于零时，就是PI控制。
感谢分享，这个太难理解了 多谢分享~~ 学习学习。。。。。。。。。。。
感谢分享
感谢分享 有一篇小明与PID，说的很形象，你可以上网搜搜 感谢分享，这个太难理解了 感谢分享。。。。。。。 感谢分享！ 简单明了感谢。。。。
我看不错噢 谢谢楼主！马后炮化工越来越好！ 谢谢楼主分享 {:1110_549:}
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