“单元制”在城市配电网规划中的应用

发布时间：2018-09-13 06:41

【摘要】：随着我国城市化进程的不断推进,城市人口数量不断地增加,城市的规模得到了进一步扩张。而电力网架作为城市发展的基础,也随之不断地延伸与发展,这也就使得城市电力网架规划愈发重要,成为城市电力系统中的重要组成部分。但是,目前的城市电网规划体系,只适用于过去的城市结构,其已经无法适应现在的城市发展速度与规模,造成了许多电网规划不合理的问题。解决这些出现的问题,并改进原有的规划体系成为城市电网发展中的重要任务。为了避免电网规划建设盲目性,让项目决策有充分的技术依据,近年来国家电网公司、江苏省电力公司颁布了《配电网规划设计技术实施细则(试行)》及相关技术规范,能据此对电网现状进行定性评估分析,给出电网问题症结,提出了不同分区配电网网架结构各不相同的思想,使得配电网规划工作向构筑可靠网架结构,全面提高配电网设备的水平的方面前进,这也是全面加强配电网的标准化建设和精益化管理的“一流配电网”工作要求,单元制规划是配电网精益化规划的具体工作方法。配电网的单元制规划是指以“目标网架”为基础,以“区域用电需求”作为导向,通过合理规划将中压配电网按区域划分为若干个供电单元,每个供电单元可独立承担该区域内的正常供电需求,保障区域内的供电可靠性。采用单元制模式规划的配电网具有“网架结构清晰”、“区域联络有序”、“电力负荷均衡”的特点,规划方案明确,可实施性强,与项目结合紧密,有利于配电网精益化管理工作。本文以江都空港新城所采用的单元制规划方案为例,分析探讨了单元制规划的具体应用过程,为城市配电网规划的研究和实践,提供借鉴和参考。
[Abstract]:With the development of urbanization in China, the number of urban population is increasing, and the scale of city has been further expanded. As the basis of urban development, power grid has been extended and developed, which makes the planning of urban power grid more and more important and becomes an important part of urban power system. However, the current urban power network planning system is only applicable to the past urban structure, it has been unable to adapt to the current speed and scale of urban development, resulting in a lot of unreasonable power network planning problems. To solve these problems and improve the original planning system is an important task in the development of urban power grid. In order to avoid blindness in power network planning and construction and to provide sufficient technical basis for project decision-making, in recent years the State Grid Corporation and Jiangsu Power Company have promulgated the detailed rules for the implementation of Distribution Network Planning and Design techniques (for trial implementation) and related technical specifications. Based on the qualitative evaluation and analysis of the current situation of the power network, the crux of the power network problem is given, and the idea that the distribution network structure is different in different districts is put forward, which makes the distribution network planning work towards the construction of reliable grid structure. To improve the level of distribution network equipment in an all-round way, this is also the requirement of "first-class distribution network" to strengthen the standardization construction and lean management of distribution network in an all-round way. Unit system planning is the specific working method of lean distribution network planning. The unit system planning of distribution network means that the medium voltage distribution network can be divided into several power supply units by rational planning, which is based on "target grid" and guided by "regional demand for electricity". Each power supply unit can undertake the normal power supply demand in the area independently and ensure the reliability of the power supply in the area. The distribution network with unit mode planning has the characteristics of "clear network structure", "orderly regional contact", "power load balance", clear planning scheme, strong implementability and close integration with project. It is beneficial to the lean management of distribution network. Taking the unit system planning scheme adopted by Jiangdu Airport Port New City as an example, this paper analyzes and discusses the concrete application process of unit system planning, which provides reference and reference for the research and practice of urban distribution network planning.
【学位授予单位】：江苏大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM715

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