發(fā)布時間：2018-02-13 16:43

  本文關(guān)鍵詞： 配電網(wǎng) 供電可靠性 區(qū)域區(qū)塊 配電網(wǎng)規(guī)劃　出處：《華北電力大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：城市電網(wǎng)建設(shè)是電力系統(tǒng)的重要組成部分,城市配電網(wǎng)的規(guī)劃是否具有高可靠性直接關(guān)系著城市電網(wǎng)的發(fā)展和改造,也是保證供電質(zhì)量和供電效率的依據(jù)。市級配電網(wǎng)更是擔(dān)負(fù)著保障市級經(jīng)濟(jì)發(fā)展繁榮的重要使命。城網(wǎng)規(guī)劃的可靠性研究和應(yīng)用是實現(xiàn)未來城市電網(wǎng)運(yùn)行經(jīng)濟(jì)性和安全性的先決條件,可以獲得更大的經(jīng)濟(jì)和社會效益；相反,城網(wǎng)規(guī)劃的的可靠性則可能給國家經(jīng)濟(jì)建設(shè)和人民日常生活帶來不可彌補(bǔ)的損失。鄂爾多斯市近幾年經(jīng)濟(jì)發(fā)展迅速,城市建設(shè)不斷深入,城市改造力度不斷加大,東勝城區(qū)是鄂爾多斯市的老城區(qū),也是核心區(qū)。在快速發(fā)展中,逐步顯現(xiàn)出配電網(wǎng)路規(guī)劃不合理和供電可靠性低的現(xiàn)象,主要表現(xiàn)在城區(qū)網(wǎng)架整體功能不夠清晰、結(jié)構(gòu)薄弱、線路負(fù)荷較重且負(fù)荷分布不合理,重點區(qū)域現(xiàn)有線路已經(jīng)不能滿足未來該地區(qū)負(fù)荷增長和安全可靠的供電需求,亟需對現(xiàn)有網(wǎng)架進(jìn)行分析研究并進(jìn)行升級改造,甚至需在重點負(fù)荷區(qū)塊內(nèi)重新梳理規(guī)范供電網(wǎng)絡(luò)。 本文首先詳細(xì)敘述了配電網(wǎng)規(guī)劃的歷史背景以及近年來配電網(wǎng)規(guī)劃的發(fā)展現(xiàn)狀,并結(jié)合國內(nèi)外關(guān)于配電網(wǎng)規(guī)劃研究情況說明高可靠性在配電網(wǎng)規(guī)劃中的重要作用。接著,詳細(xì)介紹了配電網(wǎng)規(guī)劃的相關(guān)理論并闡明應(yīng)從哪些方面對配電網(wǎng)規(guī)劃著手研究才能提高配電網(wǎng)的可靠性,介紹了一個配電網(wǎng)優(yōu)化模型和兩個電力負(fù)荷預(yù)測模型,為東勝城區(qū)配電網(wǎng)合理的進(jìn)行電力負(fù)荷預(yù)測和區(qū)域區(qū)塊劃分提供理論依據(jù)。然后,根據(jù)量化分析指標(biāo)和可靠性評估模型,分析了東勝城區(qū)配電網(wǎng)在可靠性方面存在的實際問題,為接下來東勝城區(qū)配電網(wǎng)的高可靠性規(guī)劃方案提供了明確的方向。接著,通過指數(shù)平滑模型、灰色預(yù)測模型預(yù)測東勝城區(qū)的未來負(fù)荷,并據(jù)此對東勝城區(qū)高可靠性配電網(wǎng)進(jìn)行合理的區(qū)域區(qū)塊劃分。最后,基于各區(qū)域區(qū)塊的實際情況制定出了東勝城區(qū)高可靠性的分區(qū)域配電網(wǎng)實現(xiàn)方案,并對東勝城區(qū)配電網(wǎng)規(guī)劃方案實施后的可靠性進(jìn)行了評估和比較。
[Abstract]:Urban power network construction is an important part of power system. Whether the planning of urban distribution network has high reliability is directly related to the development and transformation of urban power grid. It is also the basis to ensure the quality and efficiency of power supply. The city distribution network is also charged with the important mission of ensuring the economic development and prosperity of the city. The reliability research and application of urban power network planning is to realize the economy of urban power network operation in the future. And security prerequisites, Greater economic and social benefits can be achieved; on the contrary, the reliability of urban network planning may bring irreparable losses to the country's economic construction and people's daily lives. With the deepening of urban construction and the increasing intensity of urban transformation, Dongsheng City is the old urban area and the core area of Ordos City. In the rapid development, the phenomenon of unreasonable planning of distribution network and low reliability of power supply is gradually appearing in the rapid development. The main performance is that the overall function of the urban grid is not clear enough, the structure is weak, the line load is heavy and the load distribution is unreasonable, the existing lines in the key area can no longer meet the demand of the future load growth and the safe and reliable power supply in this area. It is urgent to analyze and study the existing grid and upgrade it, and even to rearrange and standardize the power supply network in the key load blocks. In this paper, the historical background of distribution network planning and the development status of distribution network planning in recent years are described in detail, and the important role of high reliability in distribution network planning is illustrated with the domestic and foreign research on distribution network planning. The related theory of distribution network planning is introduced in detail, and the research on distribution network planning should be carried out in order to improve the reliability of distribution network. A distribution network optimization model and two power load forecasting models are introduced. This paper provides a theoretical basis for reasonable load forecasting and regional block division of Dongsheng distribution network. Then, according to the quantitative analysis index and reliability evaluation model, the practical problems in reliability of Dongsheng distribution network are analyzed. It provides a clear direction for the next high-reliability planning scheme of Dongsheng city distribution network. Then, through exponential smoothing model, grey forecasting model is used to predict the future load of Dongsheng city. Finally, based on the actual situation of each regional block, the realization scheme of high-reliability sub-regional distribution network in Dongsheng district is established. The reliability of Dongsheng distribution network plan is evaluated and compared.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM715

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本文編號：1508619