配电网精益化规划研究及应用

发布时间：2018-04-16 23:04

本文选题：配电网规划 + 粒子群算法　；参考：《浙江大学》2014年硕士论文

【摘要】：配电网是电力系统的一个重要组成部分,是向用户供电的一个重要纽带,整个电力系统对用户的供电能力和供电质量最终都必须通过它来实现和保障。随着国民经济的发展,用电负荷的不断增加,用户对配电网供电能力和供电质量提出了更高的要求。如何通过配电网的合理规划,综合量化考虑可靠性和经济性的平衡,力求满足可靠性目标的同时最大化经济和社会效益逐渐成为目前的研究热点。本文贯彻以可靠性为中心的配电网规划理念,引入全寿命周期管理的概念,提出了适应当下配电网发展新形势的配电网精益化规划方法,形成了上年度投资后评价-现状电网综合评价-配电网负荷预测-配电网优化改造规划-规划项目优选-规划前评估的配电网规划新框架。其次,本文对配电网网架规划进行了研究,用解析法分别对架空线路故障和电缆线路故障进行了分析,形成了可靠性量化评估的预测模型,建立了一个综合考虑全寿命周期内规划方案的投资效益的配电网规划模型。该模型在力求降低投资和运行成本的同时,综合考虑可靠性的提高,增供电量的提升和最小化网损的经济价值,有效地协调电网规划方案的经济性和可靠性。最后,本文采用MATLAB软件用C语言编写配电网网架规划程序,进行了算例仿真分析,将模糊自适应改进粒子群算法应用于配电网网架规划,对所建立的数学模型进行求解,得到了在满足配电网辐射状供电和线路容量等条件下,配电网规划项目全寿命周期内的投资效益比最优的带联络的网架规划方案,并将结果与其他模型的规划结果进行横向比较,证明了本文提出的规划方法的有效性和可行性。
[Abstract]:Distribution network is an important part of power system and an important link to supply power to users. The power supply ability and quality of the whole power system must be realized and guaranteed by it.With the development of national economy and the increasing of power load, users have put forward higher requirements for power supply ability and quality of distribution network.How to realize the balance of reliability and economy through rational planning of distribution network and how to maximize the economic and social benefits while satisfying the goal of reliability has gradually become a hot research topic at present.In this paper, the concept of reliability centered distribution network planning is carried out, and the concept of life-cycle management is introduced, and the lean planning method of distribution network is put forward to adapt to the new situation of distribution network development.A new framework of distribution network planning is formed, which is the post-investment evaluation of last year, the comprehensive evaluation of current power network, the load forecasting of distribution network, the optimization of distribution network reconstruction planning, the optimal selection of planning projects and the pre-planning evaluation.Secondly, this paper studies the network planning of distribution network, analyzes the overhead line fault and cable line fault by analytic method, and forms a quantitative reliability prediction model.A distribution network planning model considering the investment benefit of the whole life cycle planning scheme is established.In order to reduce the investment and operation cost, the model considers comprehensively the improvement of reliability, the increase of power supply and the minimization of the economic value of network loss, so as to effectively coordinate the economy and reliability of the power network planning scheme.Finally, the MATLAB software is used to compile the distribution network planning program in C language, and the simulation analysis is carried out. The fuzzy adaptive improved particle swarm optimization algorithm is applied to the distribution network planning, and the mathematical model is solved.Under the condition of satisfying the radial power supply and line capacity of the distribution network, the optimal investment benefit ratio in the whole life cycle of the distribution network planning project is obtained.The results are compared horizontally with the results of other models, which proves the effectiveness and feasibility of the proposed programming method.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM715

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