组网评价方法在配电网评估中的应用讲课.doc

组网评价方法在配电网评估中的应用研究 The applied research of network evaluation method in the assessment of the distribution network 南方理工大学 王必志 摘 要 配电网是电能传输中的最后一个环节，起着向区域内电能用户分配电能的作用。近几年来，随着负载对电能的需求增大，配电网的建设是智能电网发展的一个重要组成。较客观地量化和评估配电网的运行状态成为了电力管理部门至关重要的一项工作。电网质量评估内容主要包含电网供电能力评估、电网总体规划布局、建设改进项目的前后顺序、技术专一性评估、可靠性的评判以及电网区域设置合理性的评价等几方面内容。 本文运用合理的评价方法，研究电网评估的结论非一致性问题。本文首先分析了配电网评估的现状及存在的问题，并研究了现有的配电网评估的基本方法。结合配电网分析模型，简要介绍了以下5种常用的评估法：重要成分综合评价法、TOPSIS法综合分析法、线性加权评价法、基于熵的评价方法以及模糊评价法。然后针对各种评价方法结论之间的差异，为解决结论的非一致性问题，提出组合评价法。说明了组合评价法的步骤、相容方法集等概念。本论文重点研究了配电网评估的实施，设计了配电网评估的整体流程及评估的具体过程。最后以某地为例，进行了评估方法对比验证，建立组合评价向量。 关键字：电网评估，组合评价，评估方法 Abstract Distribution network is the last link in power transmission and plays a role to region to power users in the distribution of power. In recent years, with the load increases the demand for electricity, distribution network construction is an important component of smart grid development. Objectively quantifying and evaluating the operational status of the distribution network has become a vital sector of a job for power management. Grid assessment include Comprehensive evaluation of grid technology economic rationality, capability assessment of supplying, Judgment of the grid reliability and suggestions of grid planning and prioritization of construction and renovation projects. In this paper, use a reasonable evaluation method to study the issue of non-conformance among the conclusion in grid assessment. This paper analyzes the current situation and existing problems in distribution network assessment firstly and study the basic assessment method. Combining distribution network analysis model, introduction Simple linear weighted comprehensive assessment, TOPSIS method, comprehensive evaluation method based on entropy, principal component analysis comprehensive evaluation method and fuzzy comprehensive evaluation method. Then for the difference between the conclusions of various evaluation methods and to solve the problem of non-uniformity conclus