pid控制器 ------外文翻译.doc
约19页DOC格式手机打开展开
pid控制器 ------外文翻译,a proportional╟integral╟derivative controller (pid controller) is a generic control loop feedback mechanism widely used in industrial control systems. a pid con...
内容介绍
此文档由会员 wanli1988go 发布
A proportional–integral–derivative controller (PID controller) is a generic control loop feedback mechanism widely used in industrial control systems. A PID controller attempts to correct the error between a measured process variable and a desired setpoint by calculating and then outputting a corrective action that can adjust the process accordingly.
The PID controller calculation (algorithm) involves three separate parameters; the Proportional, the Integral and Derivative values. The Proportional value determines the reaction to the current error, the Integral determines the reaction based on the sum of recent errors and the Derivative determines the reaction to the rate at which the error has been changing. The weighted sum of these three actions is used to adjust the process via a control element such as the position of a control valve or the power supply of a heating element.
By "tuning" the three constants in the PID controller algorithm the PID can provide control action designed for specific process requirements. The response of the controller can be described in terms of the responsiveness of the controller to an error, the degree to which the controller overshoots the set point and the degree of system oscillation. Note that the use of the PID algorithm for control does not guarantee optimal control of the system or system stability.
Some applications may require using only one or two modes to provide the control appropriate system control. This is achieved by setting the gain of undesired control outputs to zero. A PID controller will be called a PI, PD, P or I controller in the absence of the respective control actions. PI controllers are particularly common, since derivative action is very sensitive to measurement noise, and the absence of an integral value may prevent the system from reaching its target value due to the control action.
比例积分微分控制器（PID控制器）是一个通用的控制回路的反馈机制，广泛应用于工业控制系统。 PID控制器试图纠正误差之间的测量过程变量和一个理想的设定值，通过计算，然后输出纠正后的输出值，可以调整的过程。
PID控制器的计算（计算），涉及三个不同的参数;比例，积分和微分。比例值确定的反应到目前的误差，积分决定反应的基础上，总结最近的误差和微分决定的反应率在哪些误差已发生变化。加权这三个行为，是用来调整的过程中，通过控制元件来控制一个控制阀得位置或电源供应的一个加热元件。
“微调”PID控制器的三个常量PID控制器可以提供控制行动，专为特定进程的要求。控制器的反应可以说是对一个误差得响应，在某种程度上控制超过设定程度的系统振荡。请注意，使用该PID控制算法的控制并不能保证最优控制或系统的稳定性。
一些应用程序可能只需要一个或两个模式，以提供适当的系统控制。这是所取得的设置增益控制不受欢迎的产出为零。 PID控制器可以被称为的PI，PD，P或I控制器，在没有各自的控制行动的时候。 PI控制器是特别常见，由于微分对测量噪音非常敏感，由于控制作用缺少积分可能防止系统达到其设定值。
The PID controller calculation (algorithm) involves three separate parameters; the Proportional, the Integral and Derivative values. The Proportional value determines the reaction to the current error, the Integral determines the reaction based on the sum of recent errors and the Derivative determines the reaction to the rate at which the error has been changing. The weighted sum of these three actions is used to adjust the process via a control element such as the position of a control valve or the power supply of a heating element.
By "tuning" the three constants in the PID controller algorithm the PID can provide control action designed for specific process requirements. The response of the controller can be described in terms of the responsiveness of the controller to an error, the degree to which the controller overshoots the set point and the degree of system oscillation. Note that the use of the PID algorithm for control does not guarantee optimal control of the system or system stability.
Some applications may require using only one or two modes to provide the control appropriate system control. This is achieved by setting the gain of undesired control outputs to zero. A PID controller will be called a PI, PD, P or I controller in the absence of the respective control actions. PI controllers are particularly common, since derivative action is very sensitive to measurement noise, and the absence of an integral value may prevent the system from reaching its target value due to the control action.
比例积分微分控制器（PID控制器）是一个通用的控制回路的反馈机制，广泛应用于工业控制系统。 PID控制器试图纠正误差之间的测量过程变量和一个理想的设定值，通过计算，然后输出纠正后的输出值，可以调整的过程。
PID控制器的计算（计算），涉及三个不同的参数;比例，积分和微分。比例值确定的反应到目前的误差，积分决定反应的基础上，总结最近的误差和微分决定的反应率在哪些误差已发生变化。加权这三个行为，是用来调整的过程中，通过控制元件来控制一个控制阀得位置或电源供应的一个加热元件。
“微调”PID控制器的三个常量PID控制器可以提供控制行动，专为特定进程的要求。控制器的反应可以说是对一个误差得响应，在某种程度上控制超过设定程度的系统振荡。请注意，使用该PID控制算法的控制并不能保证最优控制或系统的稳定性。
一些应用程序可能只需要一个或两个模式，以提供适当的系统控制。这是所取得的设置增益控制不受欢迎的产出为零。 PID控制器可以被称为的PI，PD，P或I控制器，在没有各自的控制行动的时候。 PI控制器是特别常见，由于微分对测量噪音非常敏感，由于控制作用缺少积分可能防止系统达到其设定值。
