本文選題：變電站設(shè)備　切入點(diǎn)：無線監(jiān)測(cè)　出處：《沈陽(yáng)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(dòng)靜觸頭、室外刀閘開關(guān)、變壓器繞組等關(guān)鍵設(shè)備,在長(zhǎng)期工作中常因過載運(yùn)行、絕緣老化等原因而產(chǎn)生故障,這些故障會(huì)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(jì)和社會(huì)造成難以估計(jì)和衡量的損失,所以對(duì)變電站設(shè)備的溫度進(jìn)行實(shí)時(shí)監(jiān)測(cè)具有重要的現(xiàn)實(shí)意義。通過查閱相關(guān)文獻(xiàn),了解了國(guó)內(nèi)外變電站設(shè)備溫度監(jiān)測(cè)技術(shù)的研究現(xiàn)狀及各種溫度監(jiān)測(cè)方式的優(yōu)缺點(diǎn)。考慮到變電站安全運(yùn)行的現(xiàn)實(shí)需求,本文利用傳感器、自動(dòng)化及無線通信等技術(shù),設(shè)計(jì)了變電站設(shè)備溫度無線監(jiān)測(cè)系統(tǒng)。通過對(duì)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(jì)。以MSP430F149單片機(jī)為核心,完成了溫度數(shù)據(jù)采集節(jié)點(diǎn)和中心節(jié)點(diǎn)的設(shè)計(jì)。溫度數(shù)據(jù)采集節(jié)點(diǎn)利用溫度采集芯片MAX6675,對(duì)變電站設(shè)備的溫度信息進(jìn)行采集轉(zhuǎn)換,然后單片機(jī)對(duì)其進(jìn)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(diǎn),中心節(jié)點(diǎn)對(duì)接收到的信息進(jìn)行相應(yīng)的處理,并通過串口通信將其發(fā)送給上位機(jī)。利用LabVIEW編寫了變電站設(shè)備溫度監(jiān)測(cè)系統(tǒng)的顯示界面,具有溫度實(shí)時(shí)監(jiān)測(cè)、歷史曲線查詢、數(shù)據(jù)分析及存儲(chǔ)等功能。在實(shí)驗(yàn)室的條件下對(duì)系統(tǒng)進(jìn)行了整機(jī)調(diào)試,系統(tǒng)運(yùn)行結(jié)果表明該系統(tǒng)能夠?qū)崿F(xiàn)溫度實(shí)時(shí)監(jiān)測(cè)、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(yáng)工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TP274;TM63

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