發(fā)布時間：2019-01-12 13:25

【摘要】：漏電是井下高壓電網(wǎng)的主要失效形式之一,漏電故障容易引起電火花,甚至引起瓦斯爆炸等嚴(yán)重的事故。嚴(yán)酷的煤礦生產(chǎn)環(huán)境,對礦井高壓電網(wǎng)的漏電保護(hù)提出了非常苛刻的要求。由于穩(wěn)態(tài)漏電信號微弱,干擾信號多,漏電故障處理機(jī)制復(fù)雜,因而井下高壓電網(wǎng)漏電保護(hù)一直是一個關(guān)注度較高的課題。 傳統(tǒng)的漏電保護(hù)大都采用有線方式來進(jìn)行數(shù)據(jù)傳輸,布線非常麻煩,同時當(dāng)電網(wǎng)需要改動的時候就需要重新布線,靈活性不夠。因此,將無線傳感器網(wǎng)絡(luò)(WSN:Wireless Sensor Network)技術(shù)用于井下電網(wǎng)的漏電保護(hù),實現(xiàn)信息的無線傳輸和組網(wǎng),能夠很好地解決上述問題。 本文采用基于ZigBee的無線傳感器網(wǎng)絡(luò),ZigBee技術(shù)是一種新型雙向無線通訊技術(shù),它的節(jié)點布置方式靈活,性能可靠,能耗較低,移動方便,性價比高。通過在井下電網(wǎng)上布置ZigBee無線傳感器節(jié)點,并構(gòu)建網(wǎng)絡(luò),免去了有線傳輸?shù)姆爆?節(jié)省了投資,更可以簡單方便的增減節(jié)點。 本文首先闡述了課題的研究目的,國內(nèi)外的研究現(xiàn)狀以及研究目的和意義；在分析了ZigBee無線傳感器網(wǎng)絡(luò)的相關(guān)理論和技術(shù)的基礎(chǔ)上提出了基于WSN的井下高壓電網(wǎng)的漏電保護(hù)系統(tǒng)；接著分析了井下高壓電網(wǎng)漏電故障以及保護(hù)原理；進(jìn)行了系統(tǒng)總體設(shè)計以及硬件設(shè)計,對中央處理器進(jìn)行了選型,設(shè)計了路由器節(jié)點,終端節(jié)點,協(xié)調(diào)器節(jié)點和上位機(jī)的硬件部分。最后本文對下位機(jī)各節(jié)點進(jìn)行了軟件設(shè)計,并且把Labview應(yīng)用于上位機(jī)的程序設(shè)計。
[Abstract]:Leakage is one of the main failure forms of underground high voltage power network. Leakage fault can easily cause electric sparks and even serious accidents such as gas explosion. The harsh coal mine production environment puts forward very harsh requirements for leakage protection of mine high-voltage power network. Because the steady state leakage signal is weak, the interference signal is many, and the mechanism of leakage fault treatment is complex, the leakage protection of underground high voltage power network is always a subject of high attention. The traditional leakage protection mostly uses the wired way to transmit the data, and the wiring is very troublesome. At the same time, when the power network needs to change, it needs to be rewired, so it is not flexible enough. Therefore, the application of wireless sensor network (WSN:Wireless Sensor Network) technology to underground power grid leakage protection, the realization of wireless information transmission and networking, can solve the above problems. In this paper, the wireless sensor network based on ZigBee is adopted. ZigBee technology is a new two-way wireless communication technology. It has flexible node arrangement, reliable performance, low energy consumption, convenient movement and high performance-price ratio. By arranging ZigBee wireless sensor nodes on underground power network and constructing the network, it can avoid the red tape of wired transmission, save investment, and can add or decrease nodes simply and conveniently. In this paper, the purpose of the research, the domestic and foreign research status, the purpose and significance of the research; Based on the analysis of the theory and technology of ZigBee wireless sensor network, the leakage protection system of underground high voltage power network based on WSN is put forward, and then the leakage fault and protection principle of underground high voltage network are analyzed. The overall design and hardware design of the system are carried out. The central processor is selected and the hardware parts of the router node, terminal node, coordinator node and upper computer are designed. Finally, the software of each node of the lower computer is designed, and the Labview is applied to the program design of the upper computer.
【學(xué)位授予單位】：安徽理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD608;TN929.5;TP212.9

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本文編號：2407827