智能配电网故障快速恢复控制策略研究

发布时间：2019-04-24 04:14

【摘要】：随着我国国民经济和城市的发展，用户对配电网的供电可靠性提出了越来越高的要求。在国家电网公司提出的坚强智能电网构想中，，配电网与用户直接联系，保证配电网的可靠性、电能质量、提高配电网的运行效率和创新服务是建设坚强智能电网关键环节，也是坚强智能电网的重要工作内容。也是坚强智能电网的重要工作内容。配电网故障后自动准确定位、迅速隔离以及快速恢复供电是坚强智能电网配电自动化建设中最基本、最重要的部分。本文在智能配电网背景下，对配电网的故障快速恢复问题中的故障定位、网络重构和故障恢复策略进行了研究。首先，本文根据配电网的故障特点，建立了含有约束条件的配电网故障快速恢复模型，并对配电网故障恢复的基础性问题，网络拓扑搜索和潮流分析进行了研究；然后本文根据智能配电网的特点，研究了基于改进矩阵算法的配电网故障定位算法和基于Agent和二进制粒子群算法的配电网重构算法，为故障恢复策略的提出奠定理论基础；最后，本文根据故障恢复模型、故障定位算法和配电网重构算法，编制了35kV电源故障和10kV电网故障的故障快速恢复策略，并以南昌市的配电网为实际算例，对提出的算法进行分析，验证所提出算法的合理性和有效性。
[Abstract]:With the development of our country's national economy and city, users put forward higher and higher requirements for power supply reliability of distribution network. In the concept of strong smart grid put forward by State Grid Corporation, the key link of building a strong smart grid is the direct connection between distribution network and users to ensure the reliability of distribution network, the quality of power, the improvement of operation efficiency and innovative service of distribution network. Is also a strong smart grid important work content. Is also a strong smart grid important work content. Automatic and accurate location, rapid isolation and rapid restoration of power supply after distribution network faults are the most basic and important parts in the construction of distribution automation in a strong smart grid. Under the background of intelligent distribution network, this paper studies the fault location, network reconfiguration and fault recovery strategy in the fast fault recovery problem of distribution network. Firstly, according to the fault characteristics of distribution network, this paper establishes a fast fault recovery model of distribution network with constraints, and studies the basic problems of distribution network fault recovery, network topology search and power flow analysis. Then according to the characteristics of the intelligent distribution network, this paper studies the distribution network fault location algorithm based on the improved matrix algorithm and the distribution network reconfiguration algorithm based on Agent and binary particle swarm optimization algorithm, which lays a theoretical foundation for the proposal of the fault recovery strategy. Finally, according to the fault recovery model, fault location algorithm and distribution network reconfiguration algorithm, the fast recovery strategy of 35kV power supply fault and 10kV power network fault is worked out, and the distribution network in Nanchang City is taken as a practical example. The proposed algorithm is analyzed to verify the rationality and effectiveness of the proposed algorithm.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM711

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