基于城乡规划的青岛配电网规划方法分析

发布时间：2018-06-15 08:04

本文选题：城乡规划 + 网格化　；参考：《华北电力大学(北京)》2017年硕士论文

【摘要】：近年来,我国城乡经济快速发展,城市化进程进一步加快,用电负荷增长迅猛。电力作为城市高速发展的重要能源保障,却在规划建设过程中面临诸多外部影响因素,传统的配电网规划方法开始表现出一些不适应,因此,适时开展配电网规划新方法的研究具有重要的理论意义和实际意义。本文以青岛配电网规划为例,配电网规划新方法首先结合城乡规划对整个规划范围进行功能定位划分,明确功能区块的发展方向和相应的供电需求,并对城市未来发展的重点区域进行详细的空间负荷预测,按照预测结果合理构建供电网格的目标网架,确保一个环网的线路来自不同的电源点,合理控制网格内每一段线路的负荷分布,均衡控制各段线路负载率,加强站间联络线路互供互带能力。针对城市地下资源的紧张局势,以网格为单位进行目标网架规划,在不迂回交叉供电的情况下,合理布局,尽量利用城市综合管廊按照远景目标网架建设,既不影响市容市貌,又满足了新增负荷就近接入的要求。规划实施后高压配网主变、线路均满足N-1校验,中压配电线路控制负载率,所有线路能实现互供互带,适当选用先进、可靠、节能的一次设备,分阶段逐步实施配网自动化。进行指标体系评估,确保规划项目实施后达到预期规划成效。通过网格化规划,将现状配电网存在的问题以“网”的理念进行解决,通过制定近期规划来指导电网的建设,制定远景规划来改变电网的现状,充分利用现有资源,合理使用政府配套设施,留有远景负荷裕度,在节约成本的同时提高设备的使用效率,最终在满足用电需求的前提下提高收益,从供电可靠率、电压合格率、线损率等电网关键指标衡量,配电网规划实施后基本达到世界先进水平。经青岛实践证明,该方法具有广阔的应用前景。
[Abstract]:In recent years, China's urban and rural economy has developed rapidly, the urbanization process has been further accelerated, and the power load has increased rapidly. As an important energy guarantee for the rapid development of the city, electric power is facing many external factors in the process of planning and construction. The traditional distribution network planning methods are beginning to show some inadaptability, so, It is of great theoretical and practical significance to study the new method of distribution network planning. Taking the distribution network planning of Qingdao as an example, the new method of distribution network planning is combined with urban and rural planning to divide the whole planning scope, and to define the development direction of the functional blocks and the corresponding power supply requirements. Detailed spatial load forecasting is carried out on the key areas in the future development of the city. According to the forecast results, the target grid structure of the power supply grid is constructed reasonably to ensure that the circuit of a ring network comes from different power supply points. The load distribution of each section of the grid is controlled reasonably, the load ratio of each section of the transmission line is balanced, and the ability of mutual supply and interband of the communication lines between stations is strengthened. In view of the tense situation of urban underground resources, taking the grid as the unit to carry on the target network planning, without circuitous cross-supply, reasonable layout, as far as possible using the city comprehensive management corridor according to the long-term target grid construction, will not affect the appearance of the city. It also meets the requirement of new load access. After the implementation of the plan, the main transformer of high voltage distribution network, the line all meet the N-1 check, the medium voltage distribution line controls the load rate, all the lines can realize the mutual supply and each other, the proper selection of the advanced, reliable and energy saving primary equipment, the distribution network automation is carried out step by step. Evaluate the target system to ensure the expected planning effect after the implementation of the planning project. Through grid planning, the existing problems of distribution network are solved with the concept of "net", through making short-term planning to guide the construction of power grid, making long-term plan to change the current situation of power grid, making full use of existing resources. Reasonable use of government supporting facilities, leaving a prospective load margin, while saving costs while improving the efficiency of equipment, and ultimately in the premise of meeting the demand for electricity to improve revenue, from the reliability of power supply, voltage pass rate, The distribution network planning has reached the advanced level of the world after the implementation of the distribution network planning, as measured by the key indicators such as line loss rate. The practice in Qingdao shows that this method has a broad application prospect.
【学位授予单位】：华北电力大学(北京)
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM715

【参考文献】