本文關(guān)鍵詞：110kV橋口變電站智能化改造關(guān)鍵技術(shù)研究　出處：《南華大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 變電站智能化改造 信息數(shù)字化采集 在線監(jiān)測 過程層網(wǎng)絡(luò)組建

【摘要】：變電站是電網(wǎng)結(jié)構(gòu)基礎(chǔ)端點(diǎn),實(shí)現(xiàn)變電站智能化是建設(shè)堅(jiān)強(qiáng)智能電網(wǎng)的根本基礎(chǔ)和重要前提,變電站的智能化實(shí)現(xiàn)需要結(jié)合其地理位置、建設(shè)規(guī)模等自身因素。本文以郴州桂陽縣110kV橋口變電站作為研究對象,研究了變電站智能化改造關(guān)鍵技術(shù),結(jié)合110kV橋口變電站的地理位置、電網(wǎng)結(jié)構(gòu)、負(fù)荷供應(yīng)、裝置配置、系統(tǒng)組成等基本狀況,提出符合其自身特點(diǎn)的“橫向、縱向”智能化改造思路,有針對性的對110kV橋口變電站智能化改造關(guān)鍵技術(shù)進(jìn)行研究和應(yīng)用。論文的主要工作如下所示:(1)根據(jù)110kV橋口變電站的運(yùn)行方式、供電范圍、負(fù)荷發(fā)展?fàn)顩r等對橋口變電站進(jìn)行負(fù)荷預(yù)測,論證其在未來7年內(nèi)的桂陽縣電網(wǎng)運(yùn)行狀態(tài),分析橋口變電站過載對桂陽縣北部電網(wǎng)造成的安全隱患,提出對110kV橋口變電站進(jìn)行智能化改造的必要性。(2)遵循“一次設(shè)備智能化,二次設(shè)備網(wǎng)絡(luò)化”的智能化改造原則,采用“一次設(shè)備本體+傳感器+智能組件”方案,提出對橋口變電站進(jìn)行“橫向、縱向”區(qū)域劃分的改造思想。(3)采用“一次設(shè)備本體+傳感器+智能組件”方案,以電壓等級為劃分條件,通過變電站高、中、低壓三側(cè)設(shè)備信息數(shù)字化采集和運(yùn)行狀態(tài)實(shí)時(shí)監(jiān)測,實(shí)現(xiàn)一次設(shè)備智能化改造。對于橋口變電站110kV出線及主變壓器三側(cè)進(jìn)線間隔采用電子式互感器技術(shù)實(shí)現(xiàn)信息的就地?cái)?shù)字化采集。對于35kV和10kV出線,保留間隔常規(guī)互感器,采用常規(guī)互感器數(shù)字化采集技術(shù)通過合并單元與常規(guī)互感器的合理配置,實(shí)現(xiàn)采集信息的數(shù)字化傳輸。(4)遵循“三層兩網(wǎng)”式的智能變電站系統(tǒng)結(jié)構(gòu),從“縱向”分別對110kV、35kV、10kV側(cè)網(wǎng)絡(luò)進(jìn)行過程層獨(dú)立組網(wǎng),基于IEC61850通訊標(biāo)準(zhǔn),對110kV橋口變電站二次設(shè)備網(wǎng)絡(luò)化。結(jié)合變電站不同電壓等級的自動(dòng)化系統(tǒng)配置和設(shè)備狀況,通過組網(wǎng)方式比較,對110kV側(cè)采用SV點(diǎn)對點(diǎn)和GOOSE組網(wǎng),對35kV/10kV側(cè)采用點(diǎn)對點(diǎn)的網(wǎng)絡(luò)配置方案,組建橋口變電站過程層及過程層網(wǎng)絡(luò),實(shí)現(xiàn)智能變電站“三層兩網(wǎng)”式自動(dòng)化系統(tǒng)結(jié)構(gòu),構(gòu)建一體化信息交互平臺(tái)。(5)提出對橋口變電站電源端設(shè)備和主變壓器進(jìn)行在線監(jiān)測監(jiān)測,通過采用在線監(jiān)測技術(shù)對110kV出線及主變壓三側(cè)進(jìn)線間隔SF6斷路器微水含量、主變壓器油分解氣體成分及濃度和避雷器全漏電流大小進(jìn)行在線監(jiān)測,實(shí)現(xiàn)對主要設(shè)備的狀態(tài)檢修模式,及早發(fā)現(xiàn)不良運(yùn)行狀態(tài),在故障發(fā)生前消除故障隱患,提高橋口變電站安全運(yùn)行水平。
[Abstract]:Is the basic structure of Power Grid Substation endpoint, realize intelligent substation is the foundation and premise of the construction of strong smart grid, intelligent substation according to its geographical location, construction scale factors. This paper takes Guiyang County 110kV Chenzhou Qiaokou substation as a research object, the research of the substation intelligent transformation of key technology, combined with 110kV Qiaokou substation location, grid structure, load supply, device configuration, the basic situation of composition system, put forward the horizontal accords with its own characteristic "vertical" intelligent transformation way, according to the research and application of 110kV Hashiguchi substation intelligent transformation of key technology. The main work of the thesis is as follows: (1) according to the operation mode, 110kV Hashiguchi substation power supply range, load situation of load forecasting in Qiaokou substation, demonstrated in the future 7 Guiyang county power grid operation state during the year, analysis of security risks in Qiaokou substation overload of Guiyang power grid caused by the northern part of the county, it is necessary for the intelligent transformation of 110kV Hashiguchi substation. (2) follow the "intelligent primary equipment, the principle of the intelligent transformation of the two network", with "a device body + + sensor intelligent component program, put forward to the substation" horizontally, Qiaokou transformation thought longitudinal "regional division. (3) using a device body + + intelligent sensor assembly program, with the voltage level is divided by the substation condition, high, low voltage side of three real-time monitoring equipment information digitization and the running state, to achieve the transformation of intelligent primary equipment for digital substation in Qiaokou 110kV outlet and main transformer three side wire spacing using electronic transformer technology to realize the information acquisition for. 35kV and 10kV outlet, retention interval transformer, through the rational allocation of the merging unit and the conventional transformer with digital acquisition technology of conventional transformer, digital transmission and acquisition of information. (4) intelligent substation system structure based on the "three layer two network", from "vertical" of 110kV, 35kV, 10kV the network layer independent network, based on IEC61850 standards of 110kV substation two Qiaokou equipment network. Combining with automation system configuration and equipment status in different substations, through the network, using the SV point and GOOSE network to the 110kV side, the network configuration of the point on the 35kV/10kV side the formation process of substation, Qiaokou layer and process layer network, intelligent substation "three layer two" type structure of the automation system, construction of integrated information exchange platform. (5) proposed to Hashiguchi variable Online monitoring of power plant equipment and main transformer, through the use of online monitoring technology of 110kV line and main transformer three side wire spacing SF6 circuit breaker micro water content, gas composition and decomposition of transformer oil concentration and arrester full leakage current on-line monitoring, realize the maintenance mode of the main equipment, as soon as possible that bad running, to eliminate hidden faults before failure, improve the safe operation level. Hashiguchi substation

【學(xué)位授予單位】：南華大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM63

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 顧黎明;倪勇;;變電站避雷器在線監(jiān)測系統(tǒng)設(shè)計(jì)[J];科技創(chuàng)新導(dǎo)報(bào);2014年04期

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本文編號：1391806