大规模中压配电网可靠性建设改造措施优选模型及求解方法

发布时间：2018-01-20 16:54

本文关键词： 大规模配电网可靠性建设改造　出处：《电网技术》2017年01期 　论文类型：期刊论文

【摘要】：我国正处于配电网建设全面推进阶段,提升供电可靠性是建设改造的核心目标之一。针对大量候选改造措施,提出一种适用于大规模配电网的措施优选模型并设计了求解算法。首先,对可靠性指标估算算法进行改进,使多种改造措施对系统可靠性的提升能够通过连续可导的函数表达。在此基础上,以投资成本与停电损失成本最小为目标,以各区域可靠性指标满足需求为约束建立优化模型。模型对决策变量分类后采用遗传算法与分支定界法联合求解。通过某城市配电网算例验证了所提求解方法具有较好的求解质量与求解稳定性。此外,模型计及了不同区域、不同改造措施间的相互影响,因而能够最大化节约改造资金,提升配电网的社会经济效益。
[Abstract]:China is in the stage of comprehensive promotion of distribution network construction, improving the reliability of power supply is one of the core objectives of construction and transformation, aiming at a large number of candidate transformation measures. This paper presents an optimal selection model for large-scale distribution networks and designs a solution algorithm. Firstly, the reliability index estimation algorithm is improved. The system reliability can be improved by continuous derivable function. On this basis, the minimum cost of investment and loss of power outage is the goal. The optimization model is established by taking the reliability index of each region to meet the demand. The genetic algorithm and the branch and bound method are used to solve the model after classifying the decision variables. The proposed method is verified by an example of a city distribution network. Good solution quality and stability. The model takes into account the interaction between different regions and different measures, so it can maximize the cost of the transformation and improve the social and economic benefits of the distribution network.
【作者单位】：四川大学电气信息学院;国网成都供电公司;
【基金】：国家高技术研究发展计划(2014AA051901)~~
【分类号】：TM74;TM732
【正文快照】： 域可靠性指标满足需求为约束建立优化模型。模型对决策变量分类后采用遗传算法与分支定界法联合求解。通过某城市配电网算例验证了所提求解方法具有较好的求解质量与求解稳定性。此外,模型计及了不同区域、不同改造措施间的相互影响,因而能够最大化节约改造资金,提升配电网的

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