Reactive power optimization for three-phase distribution networks with distributed generators based on mixed integer second-order cone programming

被引:15
作者
Liu, Yibing [1 ,2 ]
Wu, Wenchuan [1 ,2 ]
Zhang, Boming [1 ,2 ]
Li, Zhengshuo [1 ,2 ]
Ju, Yuntao [1 ,2 ]
机构
[1] Department of Electrical Engineering, Tsinghua University, Beijing
[2] State Key Laboratory of Control and Simulation of Power Systems and Generation Equipments, Tsinghua University, Beijing
来源
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2014年 / 38卷 / 15期
关键词
Discrete variables; Distributed generator; Distribution networks; Reactive power optimization; Second-order cone programming;
D O I
10.7500/AEPS20131211011
中图分类号
学科分类号
摘要
The reactive power optimization in distribution networks with distributed generators is a nonlinear and non-convex problem in essence and one hard to get an optimal solution. In light of the radial operation characteristic of the distribution network, this paper develops a three-phase reactive power optimization model based on branch power flow equations. Then the original reactive power optimization model is converted to a mathematical programming form with a convex feasible zone based on the second-order cone relaxation technology. Further, the model is extended to a mixed integer second-order cone programming model by taking the discrete compensation devices (such as capacitors) into account. The model can easily be solved by existing optimization solvers. Numerical tests on an IEEE 33-bus and IEEE 123-bus distribution system show that the proposed method is capable of efficient global optimal solution. ©2014 State Grid Electric Power Research Institute Press
引用
收藏
页码:58 / 64
页数:6
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