Research and Application of Automation Controlling System for Plate Ultra Fast Cooling Process

2012 ◽  
Vol 605-607 ◽  
pp. 1836-1840
Author(s):  
Xiao Lin Chen ◽  
Bing Xing Wang ◽  
Yong Tian ◽  
Guo Yuan ◽  
Zhao Dong Wang ◽  
...  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Cooling System ◽  
Low Cost ◽  
Control Process ◽  
Control Unit ◽  
Controlled Cooling ◽  
Ultra Fast Cooling ◽  
Fast Cooling

To implement the new generation thermo mechanical control process (NG-TMCP), the automatic control system of ultra fast cooling (UFC) was developed by combined with the renovation project of controlled cooling system in one plate production line. This system was composed of basic automation subsystem and process automation subsystem. As the main control unit of the basic automatic control system, a S7400 PLC system is used to control the UFC device and to achieve the chain control between the UFC system and the mill system. While the process control system is to realize the automatical setting of the cooling schedule by the developed finite element temperature field model and the temperature homogeneity model. The industry application shows that the NG-TMCP which is based on the UFC can reduce the alloy content effectively and implement the low-cost reduction produce of high-grade products.

Development of Automatic Control System for a Rolling Shear Line

2010 ◽  
Vol 145 ◽  
pp. 471-476
Author(s):  
Qian Lai Sun ◽  
Zhi Yi Sun ◽  
Xue Wen Yan ◽  
Hong Li
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
High Efficiency ◽  
Low Cost ◽  
Control Unit ◽  
Distributed Control System ◽  
Rolling Shear ◽  
Shear Line ◽  
Profibus Dp

An automatic control system is developed for a rolling shear line in this paper in order to overcome the weakness of the traditional control system. All of motion mechanisms are driven by alternating current motors. The S7-300 PLC is selected as the control unit. And the PROFIBUS-DP field bus is employed to structure a distributed control system. Automatic cutting to length is realized. The rolling shear line has some merits such as high efficiency and precision, low cost and energy consummation ensured by the control system. The control system is reliable and flexible.

Application of PID in Controllable Pitch Propeller of a Multipurpose Ocean Tug

2013 ◽  
Vol 464 ◽  
pp. 253-257
Author(s):  
Hui Fang Chen
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
High Reliability ◽  
Control Process ◽  
Good Control ◽  
Control Performance ◽  
Hardware Configuration ◽  
Design Idea ◽  
And Control

This paper takes the automatic control system of controllable pitch propeller in a multipurpose ocean tug as an example to describe the application of the S7-200 series PLC in the control system of 4500 horse power controllable pitch propeller in detail. The principle of control system is addressed, as well as the hardware configuration, the design idea of the main software and control process. The system shows high reliability, accuracy and good control performance in practical in practical running.

The Isolator of Industrial Automatic Control System Selection and Application

2011 ◽  
Vol 301-303 ◽  
pp. 1714-1718
Author(s):  
Ji Meng Zhang ◽  
Hong Shuo Wang ◽  
Ben De Gan
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Signal Transmission ◽  
Control Process ◽  
Monitoring And Control ◽  
Process Monitoring And Control ◽  
Isolation Device ◽  
System Selection ◽  
And Control

In the automatic control system of industrial field, the production process monitoring and control process is dependent on Mutual coordination of various automation instrument, computer and corresponding actuators. The coordination is accurate or not, the key is signal transmission quality among those agencies. The application and selection of isolation device directly affect signal transmission. This paper discusses the application and choose of industrial site isolator from isolation principle, the principle and choose for isolator, commissioning and parameter selection based on practical application.

Environmental Automatic Control System of HMG-2 Type Solar Greenhouse

2013 ◽  
Vol 336-338 ◽  
pp. 1275-1280
Author(s):  
Guo Hui Chen ◽  
Yan Ling Guo ◽  
Fang Qu
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Environmental Control ◽  
Low Cost ◽  
Northern China ◽  
Production Performance ◽  
Key Technology ◽  
Improve Production ◽  
Solar Greenhouse

In present, plenty of solar greenhouse in northern China can't play maximum efficicency because of have no environmental control system. Through greenhouse construction for many years, a new practical HMG-2 type solar greenhouse with environmental automatic control system has been developped. This control system has "offline" and "online" two kind of working modes. The paper expounds the key technology adopted by the control system, which can greatly improve production performance of solar greenhouse. This environmental control system has many advantages such as low cost and easily to implement. It can meet the demand of users and has popularization value.

scholarly journals DEVELOPMENT OF THE STRUCTURE OF INTELLECTUAL AUTOMATIC CONTROL SYSTEM

2013 ◽  
Vol 17 (2) ◽  
pp. 115-119
Author(s):  
G.V. Abramov ◽  
Ivan V. Zheltoukhov
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Performance Monitoring ◽  
Control Unit ◽  
Heat Demand ◽  
Quantitative Performance ◽  
The Difference ◽  
Separation Devices ◽  
And Control

Abstract Relevance of the study is associated with reduced energy intensity of the process heat demand by improving the systems and control algorithms of automatic energy management in buildings. This paper presents a system for power management of individual modules with interaction via the Ethernet, allowing measuring the qualitative and quantitative performance of network communication protocols of different levels of performance monitoring in real time. The difference of the developed intellectual automatic control system consisting of separate modules with interaction via the Ethernet, there is no separation devices for simple and intelligent - all the devices are intelligent, the controller is a separate module, and its functions are performed by the control unit.

The Design of Automatic Control System for Industrialized Recirculating Aquaculture

2014 ◽  
Vol 1046 ◽  
pp. 246-249 ◽  
Author(s):  
Yu Qing Liu ◽  
Yan Xiang Wu ◽  
Li Ling Cao
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Control Process ◽  
Water Quality Monitoring ◽  
Water Circulation ◽  
Recirculating Aquaculture ◽  
Dynamic Display ◽  
System User ◽  
Lab Test

Based on the control process and requirements of the industrialized recirculating aquaculture system (IRAS), we designed an aquaculture automatic control system. The entire system is divided into seven modules including water circulation and filtration, bioreactor self-loop, water quality monitoring, Emergency treatment, thermostatic temperature control, PID operation, and failure alarm. It is used to control the water circulation, and automatically detect and adjust the environmental factors of the pond for best farming environment. The lower computer adopts Siemens S7-200 PLC. MCGS configuration software is applied in the upper computer for the dynamic display, parameter setting, fault alarm and other functions of the whole recirculating aquaculture process. The lab test showed the advantages of the system including the high degree of automation of the system, user-friendly, easy to maintain and reliable operation, with a good promotional and application value.

The Design of Rolling Mills’ Automatic Control System Based on PLC

2013 ◽  
Vol 546 ◽  
pp. 25-29 ◽  
Author(s):  
Jian Chen Wang ◽  
Xiao Lei Deng
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Steel Ingot ◽  
Control Unit ◽  
Mechanical Equipment ◽  
Position Sensor ◽  
Industrial Control ◽  
Rolling Mills ◽  
Control Technologies

The rolling mill is a kind of mechanical equipment which rolls steel ingot or billet continuously into steel. This paper selected 1150 blooming mill as research subject. In order to realize the automatic control of 1150 blooming mill, hydraulic screw-down devices and the automatic control system of hydraulic screw-down position are used, and Siemens PLC is chose as the control system's main control unit. Then industrial control technologies are used, such as DC digital controller, touch screen, photoelectric-interrupter type position sensor.

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