【摘要】：針對分布式光伏電源點多面廣、投資規(guī)模小、現(xiàn)場設(shè)備安裝調(diào)試環(huán)境復(fù)雜、運行維護技術(shù)力量薄弱問題,分析并經(jīng)實踐檢驗得出傳統(tǒng)變電站自動化信息接入方案在技術(shù)與經(jīng)濟上均不適應(yīng)分布式光伏電源需求,且國內(nèi)外均沒有可供參考的分布式光伏主站監(jiān)控系統(tǒng)一體化成熟解決方案。本文針對分布式光伏電源信息采集與實時監(jiān)控難題,結(jié)合分布式光伏電源的特性,綜合考慮技術(shù)、經(jīng)濟、安全、可行性,提出分布式光伏監(jiān)控關(guān)鍵技術(shù)及一體化解決方案,破解了分布式光伏電源就地信息采集、通信通道、主站監(jiān)控系統(tǒng)建設(shè)難題,實現(xiàn)了對分布式光伏電源的信息采集與實時監(jiān)控,并在工程實踐中得到廣泛應(yīng)用,解決了影響分布式光伏監(jiān)控技術(shù)的關(guān)鍵問題,形成了可供復(fù)制、推廣的技術(shù)方案。一是研發(fā)適應(yīng)分布式光伏電源的一體化接入裝置,在一個裝置內(nèi)融合保測一體、電能計量、電能質(zhì)量、總控單元、規(guī)約轉(zhuǎn)換器、加密裝置、傳輸接入等功能,具有投資成本低、占用空間小且不單獨占用屏柜、運行維護簡單的特點;二是研究應(yīng)用滿足信息安全與二次安防要求的有線無線混合通信的遠動通道解決方案,攻克了涵蓋10千伏、380伏等不同電壓等級并網(wǎng)的電站通道組織難題;三是規(guī)范建設(shè)區(qū)域分布式電源運行監(jiān)控系統(tǒng)并形成建設(shè)標準,建設(shè)一套專用的區(qū)域分布式光伏電源運行監(jiān)控主站系統(tǒng),具備對電站開關(guān)位置量、模擬量、狀態(tài)量以及電能質(zhì)量、電能量計量監(jiān)測以及發(fā)電功率預(yù)測、協(xié)調(diào)控制、效益分析等高級應(yīng)用功能。系統(tǒng)的建成為國內(nèi)分布式光伏監(jiān)控技術(shù)領(lǐng)域提供關(guān)鍵技術(shù)支撐。目前已實現(xiàn)對浙江嘉興等地區(qū)852座、879MW分布式光伏電源的信息采集、實時監(jiān)控與運行管理。
[Abstract]:The distributed photovoltaic power supply has a wide range of points, a small investment scale, a complex environment for installation and commissioning of field equipment, and a weak technical force for operation and maintenance. It is concluded that the traditional information access scheme of substation automation can not meet the demand of distributed photovoltaic power supply technically and economically. And there is no integrated and mature solution for distributed photovoltaic monitoring system at home and abroad. Aiming at the problem of information collection and real-time monitoring of distributed photovoltaic power supply, combining the characteristics of distributed photovoltaic power supply, considering the technology, economy, security and feasibility, this paper puts forward the key technology and integrated solution of distributed photovoltaic monitoring. The problems of local information collection, communication channel and main station monitoring system construction are solved, and the information collection and real-time monitoring of distributed photovoltaic power supply are realized, which are widely used in engineering practice. The key problems affecting distributed photovoltaic monitoring technology are solved, and a replicable and popularized technical scheme is formed. The first is to develop an integrated access device adapted to distributed photovoltaic power supply, which integrates measurement and protection in one device, energy metering, power quality, general control unit, protocol converter, encryption device, transmission and access, etc., and has low investment cost. The utility model has the advantages of small occupation space and no individual occupation of the screen cabinet and simple operation and maintenance; The second is to study and apply the remote channel solution to meet the requirements of information security and secondary security, and solve the problem of channel organization of power station, which covers 10 kV, 380 volts and other different voltage levels connected to the grid. The third is to standardize the construction of a regional distributed power source operation monitoring system and to form a construction standard, and to build a special regional distributed photovoltaic power operation monitoring master station system with the switching position, analog quantity, state quantity and power quality of the power station. Electrical energy metering and monitoring as well as generation power prediction, coordination control, benefit analysis and other advanced application functions. The completion of the system provides key technical support for the domestic distributed photovoltaic monitoring technology field. At present, the information collection, real-time monitoring and operation management of 879MW distributed photovoltaic power have been realized in Jiaxing, Zhejiang province.
【學(xué)位授予單位】：華北電力大學(xué)(北京)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM615

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