Research on three-phase unbalanced distribution network reconfiguration strategy

International Conference on Energy Engineering and Environmental Protection 2016

能源学;生态环境科学

Hu, Shuang^1 ; Li, Ke-Jun^1 ; Xu, Yanshun^1 ; Liu, Zhijie^1 ; Guo, Jing^1 ; Wang, Zhuodi^1

School of Electrical Engineering, Shandong University, Jinan, China^1

关键词: Algebraic modeling;    Mixed integer linear programming model;    Optimal reconfigurations;    Optimization problems;    Social economy;    Three-phase unbalances;    Unbalanced distribution networks;    Voltage violation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/52/1/012037/pdf
DOI  :  10.1088/1742-6596/52/1/012037

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

With the development of social economy, the loads installed in the distribution network become more and more complex which may cause the three-phase unbalance problems. This paper proposes an optimal reconfiguration approach based on mixed integer quadric programming (MIQP) method to address the three-phase unbalance problem. It aims to minimize the total network losses of the system. By using several square constraints to substitute the circular constraint, the original optimization problem is linearized and converted into a mixed-integer linear programming (MILP) model. Then this MILP problem is solved in general algebraic model system (GAMS) software using CPLEX solver. The additional losses caused by three-phase unbalanced are also considered. An IEEE 34 nodes test system is used to demonstrate the feasibility and effectiveness of the proposed method. The results show that the losses and the voltage violation mitigation in the network can be reduced significantly.