基于复杂网络理论的能源互联网通信可靠性分析

发布时间：2018-08-25 08:57

【摘要】：在全球能源消费需求持续增长的背景下,资源枯竭与环境污染的双重压力给经济社会发展带来了严峻的挑战。近年来,国内外对智能电网的建设趋于成熟,为电力能源的高效利用提供了技术基础。然而,随着可再生能源的广泛发展以及电气化交通网络的接入,电力网络面临着前所未有的发展瓶颈,主要表现在系统的稳定性与可靠性受到挑战。在此背景下,能源互联网(Energy Internet)的概念随之而出,在我国,能源互联网依托于传统骨干电网,接入大规模的可再生能源系统、即插即用电动汽车,并融合了交通网络与天然气网络等,是一个具有高度灵活性与实时性的复杂网络,其可靠性的要求也相对提高。近年来,复杂网络理论在复杂系统的研究中有了重大突破。基于复杂网络理论研究电力通信网络的可靠性也日渐兴起,对于传统的电网研究方法来说是一个重大的突破;相比较于传统的电力通信网络,能源互联网的通信网络是更复杂的网络,更适合运用复杂网络理论来研究,因此,本文拟将复杂网络理论运用在能源互联网通信网络的可靠性分析中。本文首先研究了复杂网络理论的基本概念及其特征参数,然后分析了未来能源互联网的基本特征及其通信网络所具有的小世界特性与无标度特性。接着,本文给出了一种对可靠性分层分析然后整体评估的可靠性研究方法,来分析能源互联网通信网络可靠性,其中,对于拓扑结构层可靠性采用了抗毁性、生存性相结合的方法分析。在此基础上,本文对所给出的能源互联网通信网络拓扑结构的模型进行了仿真模拟;并将此网络模型与互联网AS级拓扑和美国电力通信网络拓扑从复杂网络层面进行了各项参数比较,从而得出本文的网络模型与互联网有若干相似特性,比传统电力通信网络更符合网络通信的要求。最后,将本文的能源互联网通信模型与某省电力通信网在随机攻击与蓄意攻击两种形式下,从抗毁性和生存性方面进行了可靠性的分析比较,得出该能源互联网通信网络模型比该省电力通信网更可靠。
[Abstract]:Under the background of the continuous growth of global energy consumption demand, the dual pressure of resource depletion and environmental pollution has brought severe challenges to the economic and social development. In recent years, the construction of smart grid at home and abroad tends to mature, which provides a technical basis for the efficient use of power energy. However, with the extensive development of renewable energy and the access of electrified transportation network, the power network is facing unprecedented bottleneck of development, which is mainly reflected in the challenges to the stability and reliability of the system. In this context, the concept of energy Internet (Energy Internet) has emerged. In China, the energy Internet relies on the traditional backbone grid, access to large-scale renewable energy systems, plug and play electric vehicles, It is a complex network with high flexibility and real time, which combines transportation network with natural gas network, and its reliability requirements are also improved. In recent years, the theory of complex network has made a great breakthrough in the research of complex systems. The research on the reliability of power communication network based on complex network theory is also rising day by day, which is a great breakthrough for the traditional research methods of power network, compared with the traditional power communication network, The communication network of the energy Internet is a more complex network, which is more suitable for the study of the complex network theory. Therefore, this paper intends to apply the complex network theory to the reliability analysis of the energy Internet communication network. In this paper, the basic concepts and characteristic parameters of complex network theory are studied, and then the basic characteristics of the future energy Internet and the small-world and scale-free characteristics of the communication network are analyzed. Then, this paper presents a reliability research method based on hierarchical reliability analysis and overall evaluation to analyze the reliability of energy Internet communication network, in which the reliability of topology layer is invulnerable. The method of combining survivability analysis. On this basis, the topology model of the energy Internet communication network is simulated in this paper. The network model is compared with the Internet AS topology and the US electric power network topology from the complex network level, and it is concluded that the network model in this paper has some similar characteristics with the Internet. Compared with the traditional electric power communication network, it meets the requirements of network communication. Finally, this paper analyzes and compares the reliability of the energy Internet communication model with that of a provincial electric power communication network from the aspects of survivability and survivability under the two forms of random attack and deliberate attack. The energy internet communication network model is more reliable than the provincial electric power communication network.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：O157.5;TK01

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