佛山南海地区狮山中心城区配电网规划研究

发布时间：2018-02-08 21:30

本文关键词： 佛山市南海区狮山镇负荷预测网架规划投资估算　出处：《华北电力大学》2016年硕士论文　论文类型：学位论文

【摘要】：作为珠江三角洲乃至全国经济最发达的地区之一,佛山市工业用电、居民用电的需求飞速增长。而近年来,电网的发展速度始终滞后于经济发展,造成了地区发展的瓶颈。而10kV配电网联系着用户,又是电网的一个重要环节。因此,通过对配网的布局、结构进行优化,最大程度满足负荷发展,成为近年来电力研究者们关心的热点问题。本文通过对佛山市南海区狮山镇现有的变电站、电网进行分析,结合所有大型用户报装需求、政府对中心城区的规划进行负荷预测结果,确定了狮山镇中心城区中低压配电网规划设计方案,形成新建、改造工程项目库,并在此基础上进行了投资估算以及经济性比较,据此优化配电网络结构,解决目前电网运行中出现的各种问题,并满足用户的报装需求。为了使南海区狮山镇10kV配电网的建设与运行更加的科学与合理,通过优化配电网网架使其更加适应地方经济发展,成为狮山镇经济发展的可靠支撑,本文对南海区狮山镇配电网进行规划设计。规划内容包括:对狮山镇辖区目前配网的运行状况进行分析、对2020年以前的新增负荷进行预测、确定规划设计的技术导则、完成规划建设方案等几个方面。第一,对南海区狮山镇配电网的运行现状进行分析,包括对电网运行维护及设备指标进行分析、对目前电网设备的投运与使用时间的统计、上级电源的负载率情况、变电站10kV出线间隔的使用率分析等内容。通过对以上指标的计算分析,可以得出10kV配电网的结构是否合理、设备的运行状况是否良好、变压器的的布局与供电半径是否满足要求、各变电站承担的负荷是否均衡等结论,从而确定规划方案的思路与方向,并制定下一步工作计划。第二,根据大客户的报装需求、政府对地区的规划方案来进行负荷预算分析,包括对配电网及上级电源的最大负荷需求、实际使用负荷等数据的预测。通过预测结构确定电源总量、供电范围、电源点间联络情况等内容。其中分析该地区内未来负荷增长情况则是电源及线路供电分区划分、确定电源容量的基础。最后,确定具体的新建、改造方案。具体内容为上级变电站的电源容量与建设周期、高、中压线路的线行位置及变压器、配电房、开关房等配电网设备的布点位置,最终形成完整的规划、设计方案,并形成具体的新建与改造项目库。
[Abstract]:As one of the most economically developed areas in the Pearl River Delta and even in the whole country, the demand for electricity for industrial use in Foshan City has increased rapidly. However, in recent years, the development of the power grid has lagged behind the economic development. The 10kV distribution network is connected with users and is an important link of the power network. Therefore, by optimizing the distribution network layout and structure, the load development can be met to the greatest extent. In recent years, electric power researchers have been concerned about the hot issues. Through the analysis of the existing substations and power grids in Shishan Town, Nanhai District, Foshan City, combined with all the large users to report the demand, The government carries on the load forecast result to the central city planning, has determined the plan design plan of the middle and low voltage distribution network in the center of Shishan town, forms the new construction, the reconstruction project bank, and carries on the investment estimate and the economical comparison on this basis. In order to optimize the distribution network structure, solve all kinds of problems in the current power network operation, and meet the needs of users, in order to make the construction and operation of 10 kV distribution network in Shishan Town, Nanhai District, more scientific and reasonable, By optimizing the distribution network to make it more suitable for local economic development, it has become a reliable support for the economic development of Shishan Town. In this paper, the distribution network of Shishan Town in Nanhai District is planned and designed. The planning contents include: analyzing the running condition of distribution network in Shishan Town area, forecasting the new load before 2020, and determining the technical guidelines for planning and design. To complete the planning and construction plan and other aspects. First, to analyze the current situation of the distribution network in Shishan Town, Nanhai District, including the operation and maintenance of the power network and the equipment indicators, and the statistics of the operation and service time of the current power network equipment. Through the calculation and analysis of the above indexes, it can be concluded whether the structure of the 10kV distribution network is reasonable, whether the operation of the equipment is good, Whether the layout of transformer and the radius of power supply meet the requirements, whether the load of each substation is balanced or not, so as to determine the train of thought and direction of the planning scheme, and draw up the next work plan. Second, according to the demand of the major customers, The government carries on the load budget analysis to the district planning plan, including the forecast to the distribution network and the superior power supply maximum load demand, the actual use load and so on data. Through the forecast structure to determine the power supply total quantity, the power supply range, Analysis of the future load growth in the area is the basis for the division of power supply and line power supply, and the determination of power supply capacity. Finally, the specific new construction is determined. The specific contents are the power supply capacity and construction cycle of higher substation, the line position of high and medium voltage line and the location of distribution network equipment such as transformer, distribution room, switch room, etc., and finally form a complete plan and design scheme. And forms the concrete new construction and the transformation 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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