發(fā)布時(shí)間：2018-05-01 10:42

  本文選題：光伏發(fā)電 + 接入系統(tǒng)方案　； 參考：《山東大學(xué)》2015年碩士論文

【摘要】：積極開發(fā)利用太陽(yáng)能資源符合國(guó)家的能源戰(zhàn)略計(jì)劃,是山東省社會(huì)經(jīng)濟(jì)可持續(xù)發(fā)展的需要,也是山東電源結(jié)構(gòu)調(diào)整的需要。本文根據(jù)《山東電網(wǎng)“十三五’規(guī)劃及2020年遠(yuǎn)景展望(2015年版)》及《萊蕪電網(wǎng)“十三五”發(fā)展規(guī)劃》,通過(guò)分析萊蕪電網(wǎng)的負(fù)荷發(fā)展情況,提出30兆瓦地面光伏發(fā)電工程合理的接入電壓等級(jí)及接入系統(tǒng)方案,根據(jù)接入系統(tǒng)方案,進(jìn)行相應(yīng)的系統(tǒng)繼電保護(hù)、調(diào)度自動(dòng)化及系統(tǒng)通信的方案設(shè)計(jì),并進(jìn)行投資估算。首先,本文介紹了分布式光伏發(fā)電和接入系統(tǒng)設(shè)計(jì)的發(fā)展現(xiàn)狀,概述了分布式發(fā)電的接入對(duì)配電網(wǎng)潮流、系統(tǒng)網(wǎng)損和電壓水平的影響,介紹了分布式光伏發(fā)電的無(wú)功輸出能力,并給出了接入分布式光伏發(fā)電后電網(wǎng)的潮流計(jì)算方法。其次,在分析萊蕪電網(wǎng)現(xiàn)狀和負(fù)荷預(yù)測(cè)的基礎(chǔ)上,對(duì)接入系統(tǒng)方案的技術(shù)要求、工程概況、周邊電網(wǎng)概況作了簡(jiǎn)要說(shuō)明,通過(guò)多方案的比較分析得到最優(yōu)方案,詳細(xì)介紹了接入光伏發(fā)電系統(tǒng)后潮流計(jì)算和短路計(jì)算的方法,并分析了本工程對(duì)電力系統(tǒng)的影響。再次,本文從線路保護(hù)、母線保護(hù)、對(duì)側(cè)系統(tǒng)保護(hù)、失步解列、防孤島裝置等方面介紹了工程的繼電保護(hù)方案；從調(diào)度關(guān)系、遠(yuǎn)動(dòng)系統(tǒng)、二次安全系統(tǒng)防護(hù)、時(shí)間環(huán)境電能質(zhì)量監(jiān)測(cè)、調(diào)度運(yùn)行管理系統(tǒng)等方面介紹了工程的調(diào)度自動(dòng)化方案,并對(duì)工程的通信系統(tǒng)作了簡(jiǎn)要介紹；本文也分別給出了各個(gè)系統(tǒng)方案的投資估算。最后,對(duì)整個(gè)工程的技術(shù)要求、繼電保護(hù)、調(diào)度自動(dòng)化和通信系統(tǒng)方案以及接入系統(tǒng)推薦方案的投資估算作了總結(jié)。
[Abstract]:The active development and utilization of solar energy resources is in line with the national energy strategic plan, which is the need of the sustainable development of social economy in Shandong Province and the adjustment of the power supply structure of Shandong Province. According to the 13th Five-Year Plan of Shandong Power Grid and the Vision 2020 (2015 Edition) and the 13th Five-Year Plan of Laiwu Power Grid, this paper analyzes the load development of Laiwu Power Grid. This paper presents a reasonable access voltage grade and access system scheme for 30 MW terrestrial photovoltaic power generation project. According to the access system scheme, the corresponding scheme design of relay protection, dispatching automation and system communication is carried out, and the investment is estimated. Firstly, this paper introduces the development status of distributed photovoltaic generation and access system design, summarizes the influence of distributed generation access on distribution network power flow, system loss and voltage level, and introduces the reactive power output capability of distributed photovoltaic generation. The power flow calculation method of the power grid connected to the distributed photovoltaic power generation is also presented. Secondly, on the basis of analyzing the current situation and load forecasting of Laiwu power network, the technical requirements, engineering situation and peripheral power network profile of the access system scheme are briefly described, and the optimal scheme is obtained through the comparative analysis of multiple schemes. The methods of power flow calculation and short circuit calculation after connecting photovoltaic system are introduced in detail, and the influence of this project on power system is analyzed. Thirdly, this paper introduces the relay protection scheme of the project from the aspects of line protection, bus protection, contralateral system protection, de-stepping, anti-islanding device and so on, from the aspects of dispatching relation, telecontrol system, secondary safety system protection, etc. In this paper, the project dispatching automation scheme is introduced in the aspects of time environment power quality monitoring and dispatching operation management system, and the communication system of the project is briefly introduced, and the investment estimation of each system scheme is also given in this paper. Finally, the investment estimation of the technical requirements, relay protection, dispatching automation and communication system scheme and access system recommendation scheme of the whole project are summarized.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TM615

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本文編號(hào)：1829025