基于复杂网络理论的输电网规划模型研究

发布时间：2018-06-26 07:35

本文选题：复杂网络理论 + 输电网规划　；参考：《华中科技大学》2014年硕士论文

【摘要】：随着电力系统规模的不断扩大，大区互联，电能的远距离、特高压输送，电力电子设备的广泛应用，使得电力系统运行情况不断复杂化。电力系统网络是一个由大量节点和边组成的复杂网络，具有复杂网络的一般特征，，其拓扑结构是电网的固有属性，一旦确定将对电网运行性能产生重大的影响。然而传统电力系统分析方法往往忽略网络结构对电网运行的影响，忽略了结构脆弱环节对网络安全运行的制约。因此本文将基于复杂网络理论基础，在输电网规划优化阶段加强对输电网结构与运行特性的综合研究，力求选出结构合理、负载均衡的输电网规划方案，提高电网的坚强性及运行安全性。本文首先介绍了复杂网络理论的基本概念及研究现状，重点说明当前复杂网络理论在电力系统中的应用情况；介绍输电网规划的基本情况，并说明复杂网络理论在输电网规划中的研究现状，明确本文的研究内容。其次，从结构特性及运行特性两方面分析输电网的基本性能，提出能综合评价输电网结构及运行特性的相关指标，在基本复杂网络模型的基础上改进输电网加权方法，构建新的基于复杂网络理论的输电网网络模型。再次，在输电网网络模型的基础上改进复杂网络基本评估指标，构建能反应输电网结构及负载率分布特性的输电网均衡度指标，给出相应的计算及使用方法。最后，将基于复杂网络理论的输电网评估指标体系引入到传统输电网规划中，构建新的输电网规划评估指标体系及基于复杂网络理论的输电网规划模型、求解方法。通过18节点系统进行算例分析，结果表明基于复杂网络理论的输电网规划指标体系及模型能有效的选出技术、经济合理，且结构、负载均衡度较优的输电网规划方案，能更较好的适应电网运行方式的变化，提高电网的坚强性及安全性。
[Abstract]:With the continuous expansion of power system scale, large area interconnection, long-distance electric energy, UHV transmission, power electronic equipment widely used, the power system operation situation is becoming more and more complicated. Power system network is a complex network composed of a large number of nodes and edges, which has the general characteristics of complex network. Its topological structure is the inherent property of the power network. Once determined, it will have a significant impact on the performance of the power network. However, the traditional power system analysis methods often ignore the influence of the network structure on the operation of the power network, and ignore the structural vulnerability of the network security operation constraints. Therefore, based on the theory of complex network, this paper will strengthen the comprehensive study of transmission network structure and operation characteristics in the phase of transmission network planning optimization, and make every effort to select the transmission network planning scheme with reasonable structure and load balance. Improve the strength of the grid and operational safety. In this paper, the basic concepts and research status of complex network theory are introduced, the application of complex network theory in power system is emphasized, and the basic situation of transmission network planning is introduced. The research status of complex network theory in transmission network planning is explained, and the research content of this paper is clarified. Secondly, the basic performance of transmission network is analyzed from the aspects of structure and operation characteristics, and the relevant indexes which can comprehensively evaluate the structure and operation characteristics of transmission network are put forward, and the weighting method of transmission network is improved on the basis of basic complex network model. A new transmission network model based on complex network theory is constructed. Thirdly, on the basis of the transmission network model, the basic evaluation index of complex network is improved, and the transmission network balance index which can reflect the distribution characteristics of transmission network structure and load rate is constructed, and the corresponding calculation and application methods are given. Finally, the evaluation index system of transmission network based on complex network theory is introduced into the traditional transmission network planning, and a new evaluation index system of transmission network planning and a transmission network planning model based on complex network theory are constructed and solved. The result shows that the index system and model of transmission network planning based on complex network theory can be selected effectively and economically, and the structure and load balance of transmission network planning scheme are better. Can better adapt to the change of grid operation mode, improve the strength and security of the grid.
【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】：TM715

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