發(fā)布時間：2018-03-15 22:19

  本文選題：變電站設(shè)備　切入點：無線監(jiān)測　出處：《沈陽工業(yè)大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：變電站內(nèi)部的母線接頭、動靜觸頭、室外刀閘開關(guān)、變壓器繞組等關(guān)鍵設(shè)備,在長期工作中常因過載運行、絕緣老化等原因而產(chǎn)生故障,這些故障會使變電站設(shè)備溫度升高,從而導(dǎo)致火災(zāi)和大面積停電,給經(jīng)濟和社會造成難以估計和衡量的損失,所以對變電站設(shè)備的溫度進行實時監(jiān)測具有重要的現(xiàn)實意義。通過查閱相關(guān)文獻,了解了國內(nèi)外變電站設(shè)備溫度監(jiān)測技術(shù)的研究現(xiàn)狀及各種溫度監(jiān)測方式的優(yōu)缺點�？紤]到變電站安全運行的現(xiàn)實需求,本文利用傳感器、自動化及無線通信等技術(shù),設(shè)計了變電站設(shè)備溫度無線監(jiān)測系統(tǒng)。通過對變電站設(shè)備發(fā)熱的原因和站內(nèi)電磁干擾的分析,確定了系統(tǒng)的整體框架方案,完成了系統(tǒng)的軟硬件設(shè)計。以MSP430F149單片機為核心,完成了溫度數(shù)據(jù)采集節(jié)點和中心節(jié)點的設(shè)計。溫度數(shù)據(jù)采集節(jié)點利用溫度采集芯片MAX6675,對變電站設(shè)備的溫度信息進行采集轉(zhuǎn)換,然后單片機對其進行數(shù)據(jù)處理,并利用由射頻芯片nRF905構(gòu)成的無線通信單元將處理后的數(shù)據(jù)信息發(fā)送給中心節(jié)點,中心節(jié)點對接收到的信息進行相應(yīng)的處理,并通過串口通信將其發(fā)送給上位機。利用LabVIEW編寫了變電站設(shè)備溫度監(jiān)測系統(tǒng)的顯示界面,具有溫度實時監(jiān)測、歷史曲線查詢、數(shù)據(jù)分析及存儲等功能。在實驗室的條件下對系統(tǒng)進行了整機調(diào)試,系統(tǒng)運行結(jié)果表明該系統(tǒng)能夠?qū)崿F(xiàn)溫度實時監(jiān)測、預(yù)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.
【學(xué)位授予單位】：沈陽工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TP274;TM63

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