简述：自动控制系统为了克服干扰，稳定工艺系统，把各种干扰分解成比例、微分、积分等规律，为了克服这些干扰，相应提出了比例、积分、微分等控制规律。

自动控制系统为了克服干扰，稳定工艺系统，把各种干扰分解成比例、微分、积分等规律，为了克服这些干扰，相应提出了比例、积分、微分等控制规律。

Automatic control system to overcome the interference, stable process system, the various interference into the proportion, differential, integral rules, in order to overcome the interference, corresponding to the proportion, integral, differential control law.

比例调节规律是调节器输出与被测参数的偏差值成比例的调节规律。比例调节规律在时间上没有延迟，调节及时。特征常数为比例度，比例度越小调节作用越强，调节作用太强会引起振荡，但调节作用太小又起不到应有的调节作用。

Proportional control law is bias regulator output and the values of the parameters to be measured is proportional to the regulation of law. The law regulating the proportion of no delay in time, timely adjustment. Character constant proportion, the proportion of smaller degree of regulation is stronger, the regulation is too high will cause oscillations, but the regulation is too small and not to play important role in.

　　积分调节规律是调节器输出的变化量与偏差随时间的积分成比例。它是用来消除余差。特征常数为积分时间，积分时间越小，积分作用越强，积分作用太强会引起振荡。

微分调节规律是调节器的输出与输入偏差变化的速度成比例。它是用来克服调节对象的大时间常数和容量滞后的影响。特征常数为微分时间，微分时间越大，微分作用越强，太大也会引起振荡。

Integral control law is the variation and deviation of the regulator output with time proportional to the integral. It is used to eliminate the residual error. Characteristic constant of integration time, integration time is smaller, more strong integral, integral effect is too strong will cause oscillation.

微分调节规律是调节器的输出与输入偏差变化的速度成比例。它是用来克服调节对象的大时间常数和容量滞后的影响。特征常数为微分时间，微分时间越大，微分作用越强，太大也会引起振荡。

Differential regulation law is the input and output deviation change regulator is proportional to the velocity of. It is used to overcome the regulating object of large time constant and capacity lag. Character constant differential time, differential time bigger, stronger differential effect, too much will cause oscillation.