电力系统自动化2018,Vol.42Issue(12):134-141,8.DOI:10.7500/AEPS20180108004
基于线性近似模型的三相不平衡有源配电网重构
Reconfiguration of Unbalanced Active Distribution Network Based on Linear Approximation Model
摘要
Abstract
For the fluctuation and time variability of distributed generation and load,and the general unbalanced operation as well,a reconfiguration method for active distribution network is proposed.Firstly,short-term prediction models of wind power,photovoltaic power and load power are built on the day before reconfiguration.In order to minimize the impact on the operation of the distribution network,a daily reconfiguration decision which takes one day as switching action cycle is proposed.On the basis of that,a mathematical model for multi-period dynamic reconfiguration for three phase unbalanced active distribution network is established,which aims at the minimum daily loss of the distribution network and voltage deviation.Moreover,the original non-convex model is linearly relaxed based on the premise-controlled optimal equidistant piecewise linear approximation algorithm.Finally,the effectiveness and accuracy of the reconfiguration model are verified by standardized distribution networks test system.关键词
三相不平衡/有源配电网重构/日重构决策/线性近似Key words
three-phase unbalanced/active distribution network reconfiguration/daily reconfiguration decision/linear approximation引用本文复制引用
吴在军,成晟,朱承治,徐俊俊,周力,窦晓波..基于线性近似模型的三相不平衡有源配电网重构[J].电力系统自动化,2018,42(12):134-141,8.基金项目
国家自然科学基金资助项目(51677025) (51677025)
国家电网公司科技项目(52110417000A).This work is supported by National Natural Science Foundation of China(No.51677025)and State Grid Corporation of China(No.52110417000A). (52110417000A)