佛山西站枢纽新城配电网规划研究

发布时间：2018-12-20 18:02

【摘要】：作为珠江口西岸乃至全广东省经济最发达的地区,佛山市南海区用电负荷需求飞速增长。而近年来,电网的投资规模始终滞后于经济发展,造成了南海地区经济增长的瓶颈。而作为联系着用户的电网终端,10kV配电网又是整个电网的最重要环节。因此,通过对配网的结构、布点进行不断优化,以最大程度满足新增负荷的需要,成为近段时间来电力技术研究的重点问题。本文通过对佛山西站枢纽地区现有变电站、电网的分析,结合佛山西站等所有大型用户的报装情况、政府对该地区的详细规划进行负荷预测,从而确定佛山西站枢纽新城中低压配电网规划建设计方案,形成新建、改造工程综合项目库,并以此为基础进行了投资估算、经济性比较,据此确定最终方案,以解决目前佛山西站地区配电网运行中存在的问题,并满足新增用户的负荷需求。本规划内容包括:对佛山西站地区10kV配电网的运行现状进行分析、对2020年之前的电网负荷进行预测、确定规划设计依据的技术导则、完成新建、改造方案等几个方面。首先,对佛山西站地区10kV配电网的运行现状进行分析,包括对10kV配电网运维情况及设备关键指标进行分析、对各种设备的使用时间的统计、上级电源的负载率情况、上级电源10kV出线柜的使用情况分析等内容。通过对以上指标的统计分析,可以得出网架结构是否合理、各种设备的运行状况是否良好、电源点的布局与供电半径是否满足要求、上级变电站所承担的负荷是否合理等结论,从而确定佛山西站地区配电网规划方案的方向与思路。其次,结合佛山西站等所有大型用户的报装情况、政府对该地区的详细规划进行负荷预测,包括对10kV配电网及上级电源的最高负荷需求、实际负荷使用率的预测等。通过预测结果确定上级电源总量、电源点位置、电源间拓扑结构等内容。最后,确定详细的新建、改造方案。具体内容为上级电源容量、位置与建设时间、10kV线路的线行走向及变压器容量、配电房、开关房等设备的布点位置,最终形成完整的新建、改造方案,并完成相应的工程项目库。
[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.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM715

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