【摘要】：作為珠江口西岸乃至全廣東省經(jīng)濟最發(fā)達的地區(qū),佛山市南海區(qū)用電負荷需求飛速增長。而近年來,電網(wǎng)的投資規(guī)模始終滯后于經(jīng)濟發(fā)展,造成了南海地區(qū)經(jīng)濟增長的瓶頸。而作為聯(lián)系著用戶的電網(wǎng)終端,10kV配電網(wǎng)又是整個電網(wǎng)的最重要環(huán)節(jié)。因此,通過對配網(wǎng)的結(jié)構(gòu)、布點進行不斷優(yōu)化,以最大程度滿足新增負荷的需要,成為近段時間來電力技術(shù)研究的重點問題。本文通過對佛山西站樞紐地區(qū)現(xiàn)有變電站、電網(wǎng)的分析,結(jié)合佛山西站等所有大型用戶的報裝情況、政府對該地區(qū)的詳細規(guī)劃進行負荷預(yù)測,從而確定佛山西站樞紐新城中低壓配電網(wǎng)規(guī)劃建設(shè)計方案,形成新建、改造工程綜合項目庫,并以此為基礎(chǔ)進行了投資估算、經(jīng)濟性比較,據(jù)此確定最終方案,以解決目前佛山西站地區(qū)配電網(wǎng)運行中存在的問題,并滿足新增用戶的負荷需求。本規(guī)劃內(nèi)容包括:對佛山西站地區(qū)10kV配電網(wǎng)的運行現(xiàn)狀進行分析、對2020年之前的電網(wǎng)負荷進行預(yù)測、確定規(guī)劃設(shè)計依據(jù)的技術(shù)導(dǎo)則、完成新建、改造方案等幾個方面。首先,對佛山西站地區(qū)10kV配電網(wǎng)的運行現(xiàn)狀進行分析,包括對10kV配電網(wǎng)運維情況及設(shè)備關(guān)鍵指標(biāo)進行分析、對各種設(shè)備的使用時間的統(tǒng)計、上級電源的負載率情況、上級電源10kV出線柜的使用情況分析等內(nèi)容。通過對以上指標(biāo)的統(tǒng)計分析,可以得出網(wǎng)架結(jié)構(gòu)是否合理、各種設(shè)備的運行狀況是否良好、電源點的布局與供電半徑是否滿足要求、上級變電站所承擔(dān)的負荷是否合理等結(jié)論,從而確定佛山西站地區(qū)配電網(wǎng)規(guī)劃方案的方向與思路。其次,結(jié)合佛山西站等所有大型用戶的報裝情況、政府對該地區(qū)的詳細規(guī)劃進行負荷預(yù)測,包括對10kV配電網(wǎng)及上級電源的最高負荷需求、實際負荷使用率的預(yù)測等。通過預(yù)測結(jié)果確定上級電源總量、電源點位置、電源間拓撲結(jié)構(gòu)等內(nèi)容。最后,確定詳細的新建、改造方案。具體內(nèi)容為上級電源容量、位置與建設(shè)時間、10kV線路的線行走向及變壓器容量、配電房、開關(guān)房等設(shè)備的布點位置,最終形成完整的新建、改造方案,并完成相應(yīng)的工程項目庫。
[Abstract]:As the most developed area in the west coast of Pearl River Estuary and Guangdong Province, the demand for electricity load in Nanhai District of Foshan City is increasing rapidly. In recent years, the scale of grid investment has lagged behind the economic development, resulting in the bottleneck of economic growth in the South China Sea. As a terminal connected with users, 10kV distribution network is the most important part of the whole grid. Therefore, through the structure of the distribution network, the distribution points are continuously optimized to meet the needs of the new load to the greatest extent, which has become a key issue in the research of power technology in recent years. Based on the analysis of the existing substation and power grid in Foshan West Railway Station, combined with the report and installation of all the large users, the government carried out the load forecasting for the detailed planning of the area. In order to determine the planning and design plan of the medium and low voltage distribution network of Foshan West Railway Station hub, form the comprehensive project database of the new construction and transformation project, and on the basis of this, the investment estimation and economic comparison are carried out, and the final scheme is determined according to this. In order to solve the problems existing in the distribution network operation of Foshan West Railway Station, and meet the load demand of the new users. The contents of this plan include: analyzing the operation status of 10kV distribution network in Foshan West Railway Station, forecasting the power network load before 2020, determining the technical guidelines of planning and design basis, completing the new construction and rebuilding scheme, and so on. First of all, the operation status of 10kV distribution network in Foshan West Railway Station is analyzed, including the operation and maintenance of 10kV distribution network and key equipment indicators, the statistics of service time of various equipment, the load rate of higher power supply. Superior power supply 10kV cabinets use analysis and other content. Through the statistical analysis of the above indexes, it can be concluded that the grid structure is reasonable, the operation condition of various equipments is good, whether the distribution of power points and the power supply radius meet the requirements, whether the load borne by higher substations is reasonable or not, and so on. In order to determine the direction and thinking of the distribution network planning plan of Foshan West Railway Station. Secondly, according to the loading situation of all the large users such as Foshan West Railway Station, the government forecasts the detailed planning of the area, including the maximum load demand of the 10kV distribution network and its superior power supply, and the forecast of the actual load utilization rate and so on. The total power supply, the position of the power point and the topology of the power supply are determined by the prediction results. Finally, determine the detailed new, reconstruction program. The specific contents include power supply capacity, position and construction time, line direction of 10kV line and transformer capacity, distribution room, switch room and other equipment distribution points, and finally form a complete new construction, transformation scheme, etc. And complete the corresponding project library.
【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】：2016
【分類號】：TM715

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本文編號：2388335