The Improvement of Working Reliability of Control System in Power Plant Based on Fieldbus
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The configuration and system of DCS and PLC are presented,which are used by control system in power plant widely. The shortage of DCS and PLC on reliability is analyzed. The fieldbus and fieldbus control system are presented. The advantage of FCS on reliability is discussed. The actuality and trend of fieldbus are analyzed,and are used by control system in power plant.Keywords:
Economic shortage
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In this paper,the FF Fieldbus developed by the Fieldbus Foundation is introduced through network architecture,network equipment characteristics,communication technology,system configur ation and many other aspects.Through comparing with the widely- applied control system composed by DCS System and PLC, discussed from both network security and economic aspect in thermal power plant application,the advantages of Fieldbus and its bright prospects in the thermal power plant are fully manifested.
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The procedure, method and advantages of application of Fieldbus technology in electric control system are introduced. The configuration and functions of the system as well as its advantages are detailed.
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At first, this paper gives a brief introduction to fieldbus control system and distributed control system Then some considerations for fieldbus control system in practical application are discussed emphatically Finally some suggestions about to selecting a fieldbus control system are provided
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The means,character and superiority of the fieldbus used in process control system are described.With the appearance of fieldbus fechnology,control system is becoming more distributed,intellgent and network.The new control system based on fieldbus (FCS)will replace the tradtional control system(DCS).Main production,standard and the developing of the fieldbus in the world are introduced.
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Based on fieldbus technique this article introduces the characteristics of control system in method choice,designing,installing and running, and as well as the fulfillment of fieldbus control system.
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Fieldbus Control Technology is a new control technology coming with the development of micro electricity technology and data communication network.Which extend to the field of industry.The Fieldbus Control Technology and System were described,at the same time several main Fieldbus were introduced..The application of FCS in the filed of industry was introduced by two example.At last,several development trends of FCS were put forward.
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Based on Foundation Fieldbus,one open laboratory measuring and control system has been designed.The configurations of hardware and software in this system are studied in this paper. Comparing to distribute control system, the hardware is reduced, but the function of the software is greatly increased in fieldbus control system. The running stabilization and effective controlling of fieldbus control system has been proved.
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This paper introduces the characteristics and the international standards of fieldbus technology. It expounds the differences between Fieldbus Control System and Distribution Control system, and the differences between the Fieldbus Control System and Information Network System. The application of fieldbus technology is also briefly introduced in the end.
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On the basis of engineering application of filedbus control system(FCS) in supercritical thermal power plant,the design points of applying the FCS165 fieldbus control system to auxiliary control for large-scale coal fired power plant were put forward.The FCS165 fieldbus control system can avoid the non-intelligent connection between intelligent field instrument and intelligent control apparatus,and obtain more abundant information of equipment operation from the field intelligent device.
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This paper briefs the application and development of automation equipment and system,programmable logic controller(PLC)and distributed control system(DCS)with microcomputer as core in thermal power plant over the past about 20years,the basic concept of fieldbus control system(FCS)and its application and new development at home and abroad;expounds the superiority of fieldbus control system in technological and economical aspects,necessity of its application in thermal power plant as well as the problems faced with;finally brings forward the views and suggestions on the application prospect of PLC,DCS and FCS in the automation field of thermal power plant.
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