10.- 过程控制

在工业上,很容易找到需要保持固定参数的设备或过程。电动机的速度,流量,液压回路的液位和温度或压缩空气系统的压力就是一个很好的例子。过程控制工程的目标是通过实施监督和控制系统使这些过程自动化。

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该学科的范围从对系统动力学和所涉及的仪器(传感器,执行器,控制器等)的研究到控制策略的开发及其后续实现,都通过对不同工业通信协议的研究而得以实现。它们用于此类系统(现场总线,HART等)。

今天最常用的控制算法是PID控制(比例,积分和微分)。通过这种控制机制,已经开发出了更复杂的策略,例如级联控制,多变量控制,预期或前馈控制以及选择性控制。这些策略是通过工业控制器,可编程逻辑控制器(PLC)以及SCADA采集和控制应用程序实现的,这些应用程序除了进行控制外,还可以实现过程的可视化。可以使用单个控制设备(集中控制系统)或通过控制器的组织网络(分布式控制系统)进行控制。

控制系统带给工业过程的生产率和效率的提高,有利于研究新的高级控制算法,例如预测控制,自适应控制或模糊控制。

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过程控制 SUBCATEGORIES

10.1.- 理论-实用基础

自动控制是工程的一个分支,它负责利用一套装置和机制来调节设备、过程或整个工厂的运行,称为控制系统。开环控制系统对系统输入(执行器)的作用与输出值无关。而闭环系统则是基于待控参数(被控变量)的反馈而运行。在这些系统中,传感器测量相应的变量,并通过控制器将测量值与期望值(参考信号)进行比较。根据比较中得到的差异(误差),对控制变量(被操纵变量)进行操作。通过框图来定义控制系统的各要素及其关系。经典控制理论在设计合适的控制策略时,确立了两个重要步骤:系统的识别和控制算法的定义。在识别过程中,最常用的方法是基于系统的时间响应分析(反应曲线法)、基于频率响应分析(Bode图)或基于拉普拉斯变换获得...

10.2.- 控制器与工业通讯

随着大型工业厂房控制的发展,出现了一种新型的系统,在这种系统中,控制不再由单一的设备来实现:分布式控制系统或DCS。在这些系统中,待自动化的过程被划分为简单的控制回路,由工业控制器和/或可编程逻辑控制器(PLC)进行本地调节,并由中央监督控制和数据采集系统(SCADA)进行监督。这种分散式的结构使得不同设备之间必须建立一个操作层次(CIM模型或金字塔),并建立一个允许信息流动的通信网络。在CIM自动化模型中,上层与监督和生产计划有关,下层用于过程控制。在下层中是现场设备(传感器和执行器)和相关的局部控制器。这些级别的工业通信采用现场总线的方式,用多点数字网络取代传统4-20mA电流回路的...

10.3.- 工业应用和系统

在流程工业中,设备和装置的优化运行是至关重要的。为了达到这个目的,安装了传感器,用于测量需要调节的参数(受控变量),执行器,允许修改其值(受控变量),控制器,定义执行值。这套设备称为控制系统。一些最常见的例子在工业上是流量控制系统,通过气动阀或电磁阀的流体的水平或温度,控制系统的pH值的解决方案,通过计量泵或控制系统的压力和流量的气体。然而,在大型工业工厂中,这些简单的控制回路并不是孤立发生的,而是作为由分布式控制系统或DCS控制的更复杂过程的一部分。在这些系统中,简单的控制回路由工业控制器和/或可编程逻辑控制器(PLC)进行本地调节,并由中央监督控制和数据采集系统(SCADA)进行监控...
过程控制 UNITS
Showing 1-30 of 41 item(s)
BASIC TEACHING UNIT FOR THE STUDY OF REGULATION AND CONTROL - RYC/B
  • RYC/B
Available
6.1.1.1.- 理论实用基础
RYC/B
用于调节和控制研究的基础教学设备
The Basic Teaching Unit for the Study of Regulation and Control, "RYC/B", allows the user to learn the basics about regulation and control of first and second order systems.This unit enables to carry a set of practices related with basic...
COMPUTER CONTROLLED MODULAR CONTROL AND REGULATION UNIT - RYC/T
  • RYC/T
Available
10.1.- 理论-实用基础
RYC/T
Computer Controlled Modular Control and Regulation Unit
Regulation and control theory is divided into two major divisions in, namely, classical and modern. The implementation of classical controller designs as compared to systems designed using modern control theory is easier and these controllers are...
BALL AND BEAM MODULE - RYC-BB
Available
6.1.1.1.- 理论实用基础
RYC-BB
Ball and Beam Module
配件 RYC/T, RYC
The "RYC-BB" Ball and Beam module has been designed to study a practical control system, through the study of a classical control system, the Ball and Beam Control system.The "RYC-BB" module consists of two main components: the "RYC-BB" apparatus...
DC SERVO MOTOR MODULE - RYC-SM
Available
6.1.1.1.- 理论实用基础
RYC-SM
DC Servo Motor Module
配件 RYC/T, RYC
The "RYC-SM" Servo Motor module has been designed to study a practical control system, through the control of the position and speed of a DC Servo Motor.The "RYC-SM" module consists of two main components: the "RYC-SM" apparatus and the "RYC-SM"...
AIR FLOW TEMPERATURE CONTROL MODULE - RYC-TAR
Available
6.1.1.1.- 理论实用基础
RYC-TAR
Air Flow Temperature Control Module
配件 RYC/T, RYC
The "RYC-TAR" Air Flow Temperature Control module has been designed to study a practical control system, through the control of an air flow temperature.The "RYC-TAR" module consists of two main components: the "RYC-TAR" apparatus and the "RYC-TAR"...
INVERTED PENDULUM CONTROL MODULE - RYC-PI
Available
6.1.1.1.- 理论实用基础
RYC-PI
Inverted Pendulum Control Module
配件 RYC/T, RYC
The "RYC-PI" Inverted Pendulum Control module has been designed to study a practical control system, through the control of a linear position system of movable cart.The "RYC-PI" module consists of two main components: the "RYC-PI" apparatus and...
MAGNETIC LEVITATION CONTROL MODULE - RYC-CLM
Available
6.1.1.1.- 理论实用基础
RYC-CLM
Magnetic Levitation Control Module
配件 RYC/T, RYC
The "RYC-CLM" Magnetic Levitation Control module has been designed to study a practical control system.The "RYC-CLM" module consists of two main components: the "RYC-CLM" apparatus and the "RYC-CLM" interface box. The "RYC-CLM" apparatus contains...
WATER FLOW TEMPERATURE CONTROL MODULE - RYC-TAG
Available
6.1.1.1.- 理论实用基础
RYC-TAG
Water Flow Temperature Control Module
配件 RYC/T, RYC
The "RYC-TAG" Water Flow Temperature Control module has been designed to study a practical control system, through the control of water flow temperature.The "RYC-TAG" module consists of two main components: the "RYC-TAG" apparatus and the...
TEMPERATURE CONTROL MODULE - RYC-TE
Available
6.1.1.1.- 理论实用基础
RYC-TE
Temperature Control Module
配件 RYC/T, RYC
The "RYC-TE" Temperature Control module has been designed to study a practical control system, through the control of the water temperature in a tank.The "RYC-TE" module consists of two main components: the "RYC-TE" apparatus and the "RYC-TE"...
PRESSURE CONTROL MODULE - RYC-P
Available
6.1.1.1.- 理论实用基础
RYC-P
Pressure Control Module
配件 RYC/T, RYC
The "RYC-P" Pressure Control module has been designed to study a practical control system, through the control of the air pressure level of an air pressure tank.The "RYC-P" module consists of two main components: the "RYC-P" apparatus and the...
LEVEL CONTROL MODULE - RYC-N
Available
6.1.1.1.- 理论实用基础
RYC-N
Level Control Module
配件 RYC/T, RYC
The "RYC-N" Level Control module has been designed to study a practical control system, through the control of the water level of a tank.The "RYC-N" module consists of two main components: the "RYC-N" apparatus and the "RYC-N" interface box. The...
FLOW RATE CONTROL MODULE - RYC-C
Available
6.1.1.1.- 理论实用基础
RYC-C
Flow Rate Control Module
配件 RYC/T, RYC
The "RYC-C" Flow Rate Control module has been designed to study a practical control system, through the flow rate of a close water circuit.The "RYC-C" module consists of two main components: the "RYC-C" apparatus and the "RYC-C" interface box. The...
LUMINOSITY CONTROL MODULE - RYC-I
Available
6.1.1.1.- 理论实用基础
RYC-I
Luminosity Control Module
配件 RYC/T, RYC
The "RYC-I" Luminosity Control module has been designed to study a practical control system and study different light sensors, through the luminosity control with three different light sensors.The "RYC-I" module consists of two main components:...
PH CONTROL MODULE - RYC-pH
Available
6.1.1.1.- 理论实用基础
RYC-pH
pH Control Module
配件 RYC/T, RYC
The "RYC-pH" pH Control module has been designed to study a practical control system, through the pH dissolution control in a stirred tank.The "RYC-pH" module consists of two main components: "RYC-pH" apparatus and "RYC-pH" interface box. The...
POSITION CONTROL MODULE - RYC-CP
Available
6.1.1.1.- 理论实用基础
RYC-CP
Position Control Module
配件 RYC/T, RYC
The "RYC-CP" Position Control module has been designed to study a practical control system, through the control of a linear position system.The "RYC-CP" module consists of two main components: the "RYC-CP" apparatus and the "RYC-CP" interface box....
COMPUTER CONTROLLED GENERATING STATIONS CONTROL AND REGULATION SIMULATOR - SCE
  • SCE
Available
6.1.1.1.- 理论实用基础
SCE
电脑控制发电设备控制和调节模拟器
Unit designed to simulate the regulation behaviour of a hydroelectric generating station, as a didactic application with different aspects ofregulation, control and simulation.It is possible to work with this unit in 2 ways:REAL mode (continuous...
INDUSTRIAL CONTROLLERS UNIT - CECI
  • CECI
Available
6.1.1.2.- 工业控制器
CECI
工业控制器
The Industrial Controllers Unit, "CECI", is based on a modular design structure whose functionality is divided into different modules toallow the student a better understanding of the unit. The modules included in the unit are: industrial...
INDUSTRIAL CONTROLLERS NETWORKING - CRCI
  • CRCI
Available
6.1.1.2.- 工业控制器
CRCI
工业网络控制器
The Industrial Controllers Networking, "CRCI", unit is based on a modular design structure whose functionality is divided into different modules to allow the student a better understanding of the unit. The modules provided with the unit are: two...
COMPUTER CONTROLLED CONTROLLER TUNING UNIT - CEAC
  • CEAC
Available
6.1.1.2.- 工业控制器
CEAC
控制器优化仪
The Computer Controlled Controller Tuning Unit, "CEAC", provides the tools to simulate different industrial processes in a HIL system and control them with a commercial industrial controller. The CEAC unit works in conjunction with a computer, in...
FIELD BUS APPLICATIONS UNIT - CEAB
  • CEAB
Available
6.1.1.2.- 工业控制器
CEAB
现场总线应用教学仪
The Trainer for Field Bus Applications, "CEAB", provides the components to conform a real Profibus DP Network where the PC is the master device and different components included with the unit are the slave devices. The "CEAB" unit also allows to...
APPLICATIONS FOR PROCESS CONTROL - APC
  • APC
Available
10.3.- 工业应用和系统
APC
Applications for Process Control
The Applications for Process Control, "APC", designed by EDIBON, allows the student to design, assemble and configure various control systems, apart from studying the fundamentals of the control engineering on which they are based.These...
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