西门子PLC在分布式能源项目中的应用

发布时间：2018-02-21 11:32

本文关键词： 分布式能源三联供系统 PLC　出处：《西安电子科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着我国能源结构的调整,以天然气为主要能源的燃气分布式能源技术由于其高效、低耗、低污染等诸多优点被越来越广泛的应用。冷热电三联供(Combined Cooling Heating and Power,CCHP)技术作为一种分布式能源技术系统,是指以天然气为一次能源,产生冷、热、电的联产联供系统,因其能显著提高天然气的利用率而成为未来分布式供能的发展趋势。本文以此为背景,围绕中石油A29地块数据中心的冷热电三联供分布式供能项目展开针对工艺控制系统方案、电气控制系统设计、可编程控制器的选型组态和监控系统开发的研究。首先,本文介绍了什么是分布式能源技术和冷热电三联供系统,确定了三联供系统的总体方案,重点对中石油A29地块数据中心三联供系统进行了阐述和分析,详细介绍了控制系统选择方案、硬件设备配置、工艺设备的选型、余热利用系统、电气系统、工艺系统和控制系统。其次,本文根据系统功能需求进行了软硬件设计和上位监控画面的组态,确定PLC(Programmable Logic Controller,可编程控制器)控制所需的模拟输入通道数、数字输入输出设备规格,网络方式及软件选型。最后,结合三联供系统实际运行模式,为了完成PLC对三联供系统内设备的控制以及数据采集并完成逻辑编写。
[Abstract]:With the adjustment of energy structure in China, gas distributed energy technology with natural gas as the main energy source is of high efficiency and low consumption. As a distributed energy technology system, it refers to the co-generation system of cold, heat and electricity with natural gas as the primary energy source to produce cold, heat and electricity. Because it can significantly improve the utilization of natural gas, it will become the development trend of distributed energy supply in the future. Based on this background, this paper focuses on the distributed energy supply project of cold, heat and power supply in the data center of Block A29 of PetroChina, aiming at the project of process control system. The design of electrical control system, the configuration of programmable controller and the development of monitoring system. First of all, this paper introduces the distributed energy technology and the system of cooling, heat and electricity, and determines the overall scheme of the system. The paper mainly expounds and analyzes the triple supply system of data center in Block A29 of PetroChina, and introduces in detail the selection scheme of control system, the configuration of hardware equipment, the selection of process equipment, the utilization system of waste heat, the electric system, etc. Process system and control system. Secondly, according to the system functional requirements, this paper designs the hardware and software and the configuration of the upper monitor screen, and determines the number of analog input channels needed for PLC(Programmable Logic controller) control. The specification of digital input and output equipment, network mode and software selection. Finally, combined with the actual operation mode of the triple supply system, in order to complete the PLC control of the equipment in the triple supply system, data acquisition and completion of logic programming.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU996;TM61

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