997D-11CC-JURG WOODWARD 温度过程控制器

概述:

用PID来实现恒温，最简单的PID控制之一，也是最能直观感受PID具体含义的例子之一。

所谓恒巨温控制，就是温度高了，让它低一点，低了让它高一点，始终保持目标温度恒定的控制。这在各种恒温设备里有广泛的应用，比如电饭煲，热水器，空调...等等。

本文则是通过实现简单的恒温控制，来初步学习PID控制。PID基本概念及特点

PID控制器，就是在过程控制中，按偏差的比例(P)、积分()和微分(D)进行控制，是应用最为广泛的一种自动控制器。在这里，可以简单称为比例器，积分器和微分器，它们最终都要告诉cpu怎么去输出控制量。

基本公式:G(s)=Kp+KIS+KDS=KDS2+KPS+KIS

控制器输入:目标信号和观测信号的偏差

控制器输出:驱动受控系统的控制量

所以PID是闭环控制算法，要实现PID算法，必须在硬件上具有i闭环控制，这就得有反馈。比如控制一个温度，就得有一个测量温度的传感器，并将结果反馈到控制路线上，实现温度的控制。

它具有原理简单，易于实现，适用面广。虽然对于PID控制器，P、1、D的作用是互相补充、互相耦合的，但是好在各个参数对于控制器性自钧的影/响程度有强有弱，所以控制参数相对独立，参数的选定比较简单等优点;而且在理论上可以证明，对于过程控制的典型对象—“一阶滞后+纯滞后"与“二阶滞后+纯滞后”的控制对象，PID控制器是一种最优控制。PID调节规律是连续系统动态品质校正的一种有效方法，它的参数整定方式简便，结构改变灵活(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,...) .

我们拥有的更多相关产品:997D-11CC-JURG WOODWARD温度过程控制器

KOLLMORGEN S70362-PBNANA

ABB PNI800

EMERSON A6140 9199-00058

A-B 1784-KT/B

B&R 8LSA35.E2060D000-0

BENTLY 3500/92 136180-01

B&R 8MSA3L.RO-30

ABB 07KT98 H4 GJR5253100R3262

HONEYWELL SPS5785 51198651-100

NI PXI-6052E

ABB VBXO1T-VBX01B

WESTINGHOUSE 1C31194G01

Rexroth R911171949-AG1

Honeywell 05701-A-0325

GE F650-G-N-A-B-F-2-G-1-HI-C-E

Honeywell 05074-A-012205704-A-

BENDER IRDH275-435

ABB PPD512A10-15000 3BHE040375R1023

0121 05704-A-0131

FOXBORO FBM227 P0927AC

ICS TRIPLEX T8310

ABB SPASI23

ABB CI858K01 3BSE018135R1

ICS TRIPLEX T8461

MOTOROLA MVME147S-1

ICS TRIPLEX T9110

ICS TRIPLEX T8151B

ELAU SM-100-40-080-PO-45-S1-B0

YASKAWA CACR-O2-TE1K

ICS TRIPLEX T8403C

ABB 3BSE004258R1

Woodward EASYGEN-3500-5

ICS TRIPLEX T8311

GE 8910-PS-DC

DDK SAN3-24

ICS TRIPLEX T9402

SST SST-PB3-CLX

ABB 5SHY3545LO010/3BHB013088RO001 ICS TRIPLEX T9451

MITSUBISHI A1S65B-S1

公司前景：