电厂生产分布式控制系统设计

发布时间：2017-12-28 01:00

本文关键词：电厂生产分布式控制系统设计　出处：《东北石油大学》2016年硕士论文　论文类型：学位论文

【摘要】：近年来,现场总线技术与分散控制系统受到人们的极大关注。针对电厂中出现的信息不能及时共享、不能实时监控等问题,基于现场总线技术和分散控制系统开展电厂生产分布式控制系统设计课题,具体如下:本文首先介绍了课题的研究背景、目的和意义,对现场总线技术国内外研究现状进行了阐述,通过对IEC现场总线种类进行分析,阐明了常用的现场总线技术及其优点,并阐述了现场总线技术对分散控制系(Distributed control system简称DCS)发展的影响。其次进行电厂的需求分析,对热电厂生产工况进行简单介绍,全面分析了电厂生产控制系统的基本组成。详细介绍了DCS在工程实例中的应用及课题实施过程,为了解决信息不能及时共享等问题,利用工业以太网实现了DCS系统与PLC系统的通信,搭设了全厂生产控制信息网,建成生产实时监测分析系统,设计和实现了实时数据库,建立实时安全分析系统。最后进行工程设计及实现,采用工业以太网及EPA现场总线技术进行循环水泵房设计,使电厂各生产过程全面实现自动化,并在集控室、调度室分别对各生产环节进行实时监控,取消岗点人员,达到减员增效和安全生产的目的,此外还对整个电厂的经济运行情况进行了优化分析,提高了整个热电厂的自动化和管理水平。通过这套电厂生产分布式控制系统的设计,为其他电厂的发展做了理论与实践的铺垫。
[Abstract]:In recent years, field bus technology and decentralized control system have received great attention. In view of the problems occurred in the power plant information can not be shared, not real-time monitoring, field bus technology and distributed control system to carry out the power plant distributed control system design based on the subject as follows: This paper firstly introduces the research background, purpose and significance of the topic, the status quo of the domestic and foreign research of field bus technology is discussed, based on the IEC field bus type analysis, the fieldbus technology and its advantages in common use, and expounds the fieldbus technology of distributed control system (Distributed control system referred to as DCS) development impact. Secondly, the demand analysis of the power plant is carried out, the production conditions of the thermal power plant are briefly introduced, and the basic composition of the power plant production control system is fully analyzed. This paper describes the application of DCS in engineering and project implementation process, in order to solve the problem of information can't be shared in time, realize the communication of DCS system and PLC system based on Industrial Ethernet, the erection of the information network of production control, built production real-time monitoring and analysis system design and implementation of real-time database, real-time security analysis system. The final engineering design and implementation, using industrial Ethernet and EPA fieldbus technology for circulating water pump house design, make the power plant the production process automation to realize, and in the control room, control room respectively to conduct real-time monitoring of the production process, cancel the post point staff, to achieve the purpose of safe production and downsizing, in addition to the power plant economic operation were optimized to increase the level of automation and management of thermal power plant. Through the design of the distributed control system for the production of the power plant, the theoretical and practical paving for the development of other power plants is made.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP273;TM621

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