二阶锥松弛在配电网最优潮流计算中的应用  

Application of second order cone relaxation in optimal power flow calculation of distribution network

作　　者：陈怀毅 胡英坤 杨毅 范舟 CHEN Huaiyi;HU Yingkun;YANG Yi;FAN Zhou(State grid Jiangsu Electric Power Engineering Consulting Co.,Ltd.,Nanjing 210000,China;State Grid Xuzhou Power Supply Company,Xuzhou 221000,China)

机构地区：[1]国网江苏省电力工程咨询有限公司,江苏南京210000 [2]国网徐州供电公司,江苏徐州221000

出　　处：《电气应用》2020年第1期49-54,共6页Electrotechnical Application

摘　　要：最优潮流计算是电网规划、优化运行的重要基础。首先建立了配电网全天有功损耗最小化的最优潮流计算模型;其次结合辐射型配电网潮流特点建立支路潮流约束,并考虑配电网中的可控单元,包括分布式电源和离散、连续无功补偿装置,建立其出力约束,该模型为非凸非线性模型;然后通过二阶锥松弛将该模型转化为包含整数变量的二阶锥规划模型,采用YALMIP建模工具包以及MOSEK商业求解器对所建模型进行求解;最后通过对IEEE 33节点设计算例,验证了所用方法的有效性。Optimal power flow calculation is an important basis for distribution network planning and operation.Optimal power flow calculation model for minimization of all-day active power loss in distribution network is firstly established,then,based on the characteristics of the radiant distribution network,the branch flow constraints are established,the controllable unit in the distribution network are also considered,including distributed generation and discrete,continuous reactive power compensation device,their output constraints are also established.This model is non-convex nonlinear,it is converted into a second order cone programming model with integer variables by second order conic relaxation,YALMIP modelling toolkit with commercial solver MOSEK is used to solve the model.Finally,The case study of the IEEE 33-bus distribution system show that the proposed method is effective.

关 键 词：二阶锥规划 最优潮流 配电网 有功损耗 

分 类 号：TM744[电气工程—电力系统及自动化]