变电站设备温度无线监测系统

发布时间：2018-03-15 22:19

本文选题：变电站设备　切入点：无线监测　出处：《沈阳工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：变电站内部的母线接头、动静触头、室外刀闸开关、变压器绕组等关键设备,在长期工作中常因过载运行、绝缘老化等原因而产生故障,这些故障会使变电站设备温度升高,从而导致火灾和大面积停电,给经济和社会造成难以估计和衡量的损失,所以对变电站设备的温度进行实时监测具有重要的现实意义。通过查阅相关文献,了解了国内外变电站设备温度监测技术的研究现状及各种温度监测方式的优缺点。考虑到变电站安全运行的现实需求,本文利用传感器、自动化及无线通信等技术,设计了变电站设备温度无线监测系统。通过对变电站设备发热的原因和站内电磁干扰的分析,确定了系统的整体框架方案,完成了系统的软硬件设计。以MSP430F149单片机为核心,完成了温度数据采集节点和中心节点的设计。温度数据采集节点利用温度采集芯片MAX6675,对变电站设备的温度信息进行采集转换,然后单片机对其进行数据处理,并利用由射频芯片nRF905构成的无线通信单元将处理后的数据信息发送给中心节点,中心节点对接收到的信息进行相应的处理,并通过串口通信将其发送给上位机。利用LabVIEW编写了变电站设备温度监测系统的显示界面,具有温度实时监测、历史曲线查询、数据分析及存储等功能。在实验室的条件下对系统进行了整机调试,系统运行结果表明该系统能够实现温度实时监测、预警等功能。
[Abstract]:Key equipment such as bus connections, static and dynamic contacts, outdoor knife switches, transformer windings, etc. in substations often fail due to overload operation, insulation aging and other reasons in long-term work. These failures will cause substation equipment temperature to rise. As a result of fire and large-scale power outages, it is difficult to estimate and measure the damage to the economy and society. Therefore, it is of great practical significance to monitor the temperature of substation equipment in real time. The research status of substation equipment temperature monitoring technology at home and abroad and the advantages and disadvantages of various temperature monitoring methods are understood. Considering the practical requirements of substation safe operation, this paper uses sensor, automation and wireless communication technology, etc. The wireless monitoring system of substation equipment temperature is designed. Through the analysis of the cause of substation equipment heating and the electromagnetic interference in the station, the overall frame scheme of the system is determined, and the software and hardware design of the system is completed. The core of the system is MSP430F149 single chip microcomputer. The design of the temperature data acquisition node and the central node is completed. The temperature data acquisition node uses the temperature acquisition chip MAX6675 to collect and convert the temperature information of the substation equipment, and then the single chip processor processes the temperature information. The wireless communication unit composed of RF chip nRF905 is used to send the processed data information to the central node, and the center node processes the received information accordingly. The display interface of temperature monitoring system of substation equipment is compiled by LabVIEW, which has real-time temperature monitoring, history curve query, etc. The whole system is debugged under the condition of laboratory. The results show that the system can realize the function of real-time temperature monitoring and early warning.
【学位授予单位】：沈阳工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP274;TM63

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