长乐市江田镇配电网规划的研究

发布时间：2018-08-22 19:44

【摘要】：在江田镇列为全省综合改革试点镇后,各级领导和相关部门对江田镇未来的发展高度重视,江田镇面临新的发展机遇。镇区内电力负荷将迅速增长,为满足地区开发建设的电力需求,确保地区的电力设施合理布局,保证系统结构的完善性,同时控制电力设施和线路路径用地的合理储备,迫切需要对片区电力网进行高标准、全方位的规划和建设。本次配电网规划范围是江田镇镇域范围,首先分析江田镇经济社会发展概况,通过对江田镇配电网的现状进行分析,发现江田镇中低压配电网存在的问题。根据江田镇经济社会发展状况,以及2008至2012年负荷和电量数据,分别采用分区人均用电量法、线性回归法、灰色模型法、增长率法对江田镇进行用电量预测,分别采用线性回归法、灰色系统理论法、自然增长率法、分区空间负荷密度法等对江田镇进行负荷预测,得出江田镇规划各期配电网供电量及供电负荷,根据预测结果以及现状电网存在的问题提出各期的改造及规划方案,在规划方案中涉及到一系列的设备选型问题,在规划设计中给出尽可能多的设备选型方案,并进行费用估算、分析,结合考虑设备的安全性和可靠性,从而选择最佳方案作为规划的最终方案。本文通过对长乐市江田小城镇变电站布点、配电网网架结构,配电网设备情况等进行分析,发现江田镇电网中存在的不足。根据江田镇经济及社会发展概况和城镇规划定位,通过分析江田镇负荷增长趋势和负荷特性,采用多种方法对江田镇的负荷和电量作出预测,结合负荷预测结果,确定近、中、远期各规划水平年电网规划方案,并对规划方案进行技术经济分析,确保优化的规划方案在技术、经济上的可行性。通过规划、建设和改造,江田电网结构和布局总体得到了优化,保证了供电可靠性和供电质量,为社会经济的发展提供有力的电力支持。
[Abstract]:After Jiangtian Town was listed as a pilot town for comprehensive reform in the whole province, leaders at all levels and relevant departments attached great importance to the future development of Jiangtian Town, and Jiangtian Town faced new development opportunities. The electric load in the township will increase rapidly. In order to meet the power demand of the development and construction of the area, to ensure the reasonable layout of the power facilities in the area, to ensure the perfection of the system structure, and to control the reasonable reserve of the power facilities and the land for the route of the line, There is an urgent need for high-standard and all-round planning and construction of the power grid in the region. The distribution network planning scope is the area of Jiangtian town. Firstly, the general situation of economic and social development of Jiangtian town is analyzed. Through the analysis of the present situation of Jiangtian distribution network, the problems of Jiangtian medium and low voltage distribution network are found. According to the economic and social development of Jiangtian Town, and the load and electricity data from 2008 to 2012, the paper uses the method of per capita electricity consumption in the district, the linear regression method, the grey model method, and the growth rate method to forecast the electricity consumption of Jiangtian Town, respectively. By using linear regression method, grey system theory method, natural growth rate method and zonal spatial load density method to forecast the load of Jiangtian Town, the power supply and load of distribution network in each phase of Jiangtian Town Planning are obtained. According to the forecast results and the problems existing in the current power network, the transformation and planning schemes in each period are put forward. In the planning scheme, a series of equipment selection problems are involved, and as many equipment selection schemes as possible are given in the planning and design. Cost estimation, analysis, and safety and reliability of the equipment are considered to select the best scheme as the final plan. Based on the analysis of substation distribution network structure and distribution network equipment in Jiangtian small town of Changle City the paper finds out the shortcomings of Jiangtian power network. According to the general situation of economic and social development of Jiangtian Town and the orientation of town planning, through analyzing the load growth trend and load characteristics of Jiangtian Town, using various methods to forecast the load and electricity quantity of Jiangtian Town, combined with the result of load forecasting, the paper determines the near and middle, In order to ensure the technical and economic feasibility of the optimized planning scheme, the annual power network planning plan of the long-term planning level is analyzed in terms of technology and economy. Through planning, construction and reconstruction, the structure and layout of Jiangtian power network are optimized, which ensures the reliability and quality of power supply, and provides powerful power support for the development of social economy.
【学位授予单位】：福州大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM715

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