隶属函数与欧氏距离相结合的配电网优化重构

发布时间：2018-01-06 22:31

本文关键词：隶属函数与欧氏距离相结合的配电网优化重构　出处：《电网技术》2017年11期 　论文类型：期刊论文

【摘要】：基于模糊数学隶属函数和空间欧氏距离,提出一种配电网多目标优化重构方法。从降低网络有功功率损耗和提高系统静态电压稳定性2个角度,建立配电网多目标优化重构模型,得到可同时降低网络有功损耗、提高线路功率传输裕度、减少节点电压偏移的重构方案。采用隶属函数将不同属性、不同量纲的多个目标转换为单目标满意度,再与欧氏距离相结合确定整体模糊满足度,将复杂多目标优化问题简化为单目标问题,避免了传统多目标问题权重选择的不准确性。采用改进开关状态更新、自适应惯性权重的二进制粒子群算法,综合分析满足约束条件、目标函数达到综合最优的重构结果。通过IEEE 33节点系统仿真,结果表明该方法的可行性和有效性。
[Abstract]:The fuzzy membership function based on Euclidean distance and space, this paper presents a multi-objective optimization for distribution network reconfiguration method. From 2 angles to reduce the active power loss and improve power system static voltage stability, a multi-objective optimization model of distribution network reconfiguration can be obtained at the same time, reduce network power loss and improve power transmission margin, reduce the reconstruction scheme of node voltage deviation. The membership function of different attributes, multiple targets of different dimension is converted into a single objective satisfaction, combined with Euclidean distance to determine the overall fuzzy satisfaction, complex multi-objective optimization problem into single objective problem, to avoid the traditional multi-objective problem of selecting weight inaccuracy. Using the improved switch status updates, the binary particle swarm optimization algorithm with adaptive inertia weight, the comprehensive analysis of the reconstruction results meet the constraints and objective function to achieve the best combination. Through the simulation of the IEEE 33 node system, the results show the feasibility and effectiveness of the method.

【作者单位】：电力系统运行与控制山西省重点实验室(太原理工大学);国网山西省电力公司电力经济技术研究院;
【基金】：山西省煤基重点科技攻关项目(MD2014-06) 山西省回国留学人员科研资助项目(2015-重点1)~~
【分类号】：TM711
【正文快照】： 0引言配电网重构是通过改变开关状态以改善系统的运行状况,基于系统经济性、可靠性及安全性的配电网多目标优化重构是保证电力系统正常运行的重要手段[1-2]。由于多目标优化可能存在各目标之间相互冲突的问题,因此有必要对优化方法进行深入研究。配电网多目标优化方法有很多,

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