配电网的评价与优化

发布时间：2018-03-26 05:43

本文选题：配电网评价　切入点：配电网规划　出处：《华中科技大学》2014年硕士论文

【摘要】：配电网直接面向电力用户，其建设发展水平直接影响电力供应的质量。目前，我国配电网发展水平与先进国家相比还存在着一定差距，因而加强配电网建设刻不容缓。配电网规划是配电网发展建设的基础工作，所制定的规划方案将直接确定配电网的未来发展规模和技术水平。配电网评价和优化作为配电网规划的关键支撑技术，近些年来受到电力专家和电力公司的广泛关注。一方面是通过评价和优化，能够找出并消除现状配电网和规划配电网中存在的漏洞与缺陷，有利于提高电力设备利用率和节约资源，并能够影响配电网的未来发展方向；另一方面通过对配电网规划方案的评价，能够更加明确未来配电网在供电能力、供电可靠性和线损水平等方面能够达到的水平，对配电网规划方案论证具有重要意义。本文根据配电网规划的要求，较全面地研究了配电网的评价和优化方法，主要内容包括：（1）较全面地介绍了当前常用的配电网评价理论方法，并对相关的评价效果和评价流程进行了深入分析。（2）根据评价目的并结合实际规划经验，综合运用AHP、德尔菲法和模糊隶属度函数，提出了一种新的配电网评价体系和优化方法。所提评价体系从上级电源、网络结构水平、负荷供应能力和装备技术水平四个方面对配电网进行分析，同时根据相关技术导则以及领域专家经验，，对评价体系中定义的各项技术指标给出评分。论文将所提评价体系和优化方法应用于某地区现状配电网的评价与优化，阐明了评价体系的应用流程，所给出的评分与规划方案解决技术问题高度一致，表明了所提评价体系在逻辑上的正确性和优化方法的有效性。（3）针对配电网规划方案的评价需要，将供电可靠性和经济性指标加入所提评价体系，提出了完整的适用于规划方案评价的配电网评价体系。论文详细介绍了该评价体系及其主要指标的计算方法。本文所提完整评价体系对配电网规划方案的评价比较全面且易于实现。
[Abstract]:Distribution network is directly oriented to power users, and its construction and development level directly affects the quality of power supply. At present, there is still a certain gap between China's distribution network development level and advanced countries. Therefore, it is urgent to strengthen the construction of distribution network. Distribution network planning is the basic work for the development and construction of distribution network. The planning scheme will directly determine the future development scale and technical level of the distribution network. The evaluation and optimization of the distribution network are the key supporting technologies for the distribution network planning. In recent years, power experts and power companies have been widely concerned. On the one hand, through evaluation and optimization, we can find and eliminate the existing loopholes and defects in the current distribution network and the distribution network planning. It can improve the utilization ratio of power equipment and save resources, and can influence the future development direction of distribution network. On the other hand, through the evaluation of distribution network planning scheme, it can be more clear about the power supply capacity of future distribution network. The level of power supply reliability and line loss is of great significance to the demonstration of distribution network planning. According to the requirements of distribution network planning, this paper comprehensively studies the evaluation and optimization methods of distribution network, the main contents of which are as follows:. In this paper, the theory and method of distribution network evaluation are introduced in detail, and the related evaluation results and flow are analyzed deeply. 2) according to the purpose of evaluation and practical planning experience, a new evaluation system and optimization method for distribution network are put forward, which are based on AHP, Delphi method and fuzzy membership function. The proposed evaluation system is based on higher power supply and network structure level. Load supply capacity and equipment technical level are analyzed in four aspects, at the same time, according to the relevant technical guidelines and expert experience in the field, The evaluation system and optimization method are applied to the evaluation and optimization of distribution network in a certain area, and the application flow of the evaluation system is expounded. The score given is highly consistent with the technical problems solved by the planning scheme, which shows the logical correctness of the proposed evaluation system and the effectiveness of the optimization method. (3) to meet the needs of the evaluation of distribution network planning scheme, the reliability and economic indexes of power supply are added to the proposed evaluation system. A complete distribution network evaluation system suitable for planning scheme evaluation is proposed. The evaluation system and the calculation method of its main indexes are introduced in detail. The evaluation ratio of the complete evaluation system to the distribution network planning scheme proposed in this paper is introduced in detail. More comprehensive and easy to implement.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM727

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