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廈門(mén)雄霸 > 挑產(chǎn)品 > WOODWARD/伍德沃德/調(diào)速器

WOODWARD/伍德沃德/調(diào)速器

997D-11CC-JURG WOODWARD 溫度過(guò)程控制器

品牌：WOODWARD

型號(hào)：997D-11CC-JURG

訂貨號(hào)：997D-11CC-JURG

上架日期：2023-07-29 11:50

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997D-11CC-JURG WOODWARD 溫度過(guò)程控制器

概述:

用PID來(lái)實(shí)現(xiàn)恒溫，最簡(jiǎn)單的PID控制之一，也是最能直觀感受PID具體含義的例子之一。

所謂恒巨溫控制，就是溫度高了，讓它低一點(diǎn)，低了讓它高一點(diǎn)，始終保持目標(biāo)溫度恒定的控制。這在各種恒溫設(shè)備里有廣泛的應(yīng)用，比如電飯煲，熱水器，空調(diào)...等等。

本文則是通過(guò)實(shí)現(xiàn)簡(jiǎn)單的恒溫控制，來(lái)初步學(xué)習(xí)PID控制。PID基本概念及特點(diǎn)

PID控制器，就是在過(guò)程控制中，按偏差的比例(P)、積分()和微分(D)進(jìn)行控制，是應(yīng)用最為廣泛的一種自動(dòng)控制器。在這里，可以簡(jiǎn)單稱(chēng)為比例器，積分器和微分器，它們最終都要告訴cpu怎么去輸出控制量。

基本公式:G(s)=Kp+KIS+KDS=KDS2+KPS+KIS

控制器輸入:目標(biāo)信號(hào)和觀測(cè)信號(hào)的偏差

控制器輸出:驅(qū)動(dòng)受控系統(tǒng)的控制量

所以PID是閉環(huán)控制算法，要實(shí)現(xiàn)PID算法，必須在硬件上具有i閉環(huán)控制，這就得有反饋。比如控制一個(gè)溫度，就得有一個(gè)測(cè)量溫度的傳感器，并將結(jié)果反饋到控制路線(xiàn)上，實(shí)現(xiàn)溫度的控制。

它具有原理簡(jiǎn)單，易于實(shí)現(xiàn)，適用面廣。雖然對(duì)于PID控制器，P、1、D的作用是互相補(bǔ)充、互相耦合的，但是好在各個(gè)參數(shù)對(duì)于控制器性自鈞的影/響程度有強(qiáng)有弱，所以控制參數(shù)相對(duì)獨(dú)立，參數(shù)的選定比較簡(jiǎn)單等優(yōu)點(diǎn);而且在理論上可以證明，對(duì)于過(guò)程控制的典型對(duì)象—“一階滯后+純滯后"與“二階滯后+純滯后”的控制對(duì)象，PID控制器是一種最優(yōu)控制。PID調(diào)節(jié)規(guī)律是連續(xù)系統(tǒng)動(dòng)態(tài)品質(zhì)校正的一種有效方法，它的參數(shù)整定方式簡(jiǎn)便，結(jié)構(gòu)改變靈活(PI、PD、..).

Overview:

Using PID to achieve constant temperature is one of the simplest PID controls and one of the most intuitive examples of the specific meaning of PID.

The so-called constant giant temperature control is that if the temperature is high, let it be lower, and if it is low, let it be higher, and always keep the target temperature constant control. This has a wide range of applications in various thermostat devices, such as rice cookers, water heaters, air conditioners... Let's wait.

This paper is to learn PID control by realizing simple constant temperature control. PID basic concept and characteristics

PID controller, is in the process control, according to the proportion of deviation (P), integral () and differential (D) control, is the most widely used automatic controller. In this case, we can simply call them proportionators, integrators, and differentiators, and they all ultimately tell the cpu how to output control.

Basic formula :G(s)=Kp+KIS+KDS=KDS2+KPS+KIS

Controller input: deviation between target signal and observed signal

Controller output: The amount of control that drives the controlled system

So PID is a closed-loop control algorithm, to achieve PID algorithm, must have i closed-loop control on the hardware, which must have feedback. For example, to control a temperature, there must be a sensor to measure the temperature, and the results are fed back to the control route to achieve temperature control.

It has the advantages of simple principle, easy implementation and wide application. Although for PID controllers, the roles of P, 1 and D are complementary and coupled with each other, the good thing is that each parameter has a strong and weak shadow/noise degree for the controller's self-simulation, so the control parameters are relatively independent, and the selection of parameters is relatively simple. And it can be proved in theory that PID controller is an optimal control for the typical process control objects of "first-order delay + pure delay" and "second-order delay + pure delay". PID regulation is an effective method for dynamic quality correction of continuous system. Its parameter setting method is simple and flexible (PI, PD,...) .

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