基于ADMM的含风电场系统分布式DC-OPF计算  

CALCULATION OF DISTRIBUTED DC OPTIMAL POWER FLOW WITH WIND POWER INTEGRATED SYSTEM BASED ON ADMM

作　　者：李国庆[1] 惠鑫欣 孙福军 徐冰亮 刘迎迎 郝光耀 Li Guoqing;Hui Xinxin;Sun Fujun;Xu Bingliang;Liu Yingying;Hao Guangyao(School of Electrical Engineering,Northeast Electric Power University,Jilin 132012,China;State Grid Heilongjiang Electric Power Company Limited,Harbin 150090,China;State Grid Weifang Hanting Power Supply Company,Weifang 261100,China)

机构地区：[1]东北电力大学电气工程学院,吉林132012 [2]国网黑龙江省电力有限公司,哈尔滨150090 [3]国网潍坊市寒亭区供电公司,潍坊261100

出　　处：《太阳能学报》2019年第8期2178-2186,共9页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51377016);国家电网公司科技发展计划(SGTYH/15-JS-194)

摘　　要：电网中的不同电力公司所管辖子系统具有相互独立且互联的特点,各子系统之间的互联给电网的分布式计算带来一定挑战,如何实现大系统的分布式计算备受关注。提出基于交替方向乘子法(alternating directionmethod of multipliers,ADMM)的含风电场系统分布式直流最优潮流(direct current optimal power flow,DC-OPF)计算模型,该模型考虑风电并网对系统分布式DC-OPF的影响,采用分解协调法实现系统的分区过程,通过引入全局变量处理边界节点问题,在信息传递过程中无需中心处理系统,只在相邻子区域之间进行复制边界节点的信息传递以减少信息通信量,实现系统的全分布式DC-OPF计算。以6节点系统、IEEE-39节点系统分析全局变量的个数对迭代收敛的影响,并讨论风电并网对优化收敛的影响,最后通过仿真验证该文所提模型的准确性和有效性。The subsystems under different power companies have independent and interconnected characteristics. The interconnection between the subsystems brings some challenges to distributed calculation. How to achieve large-scale system distributed calculation is highly concerned. This paper presents a distributed DC optimal power flow calculation model based on alternating direction method of multipliers with wind power integrating system. The model considers the effect of wind power on the distributed DC-OPF. The partitioning process of the system is achieved by decomposition and coordination method. What’s more,the boundary nodes problem are dealt with by global variables. The model does not require any form of central processing system. And information transfer between the duplicated boundary nodes are carried out between adjacent subsystem in order to reduce information communication. The effect of the number of global variables on iterative convergence is analyzed by 6-bus system and IEEE 39-bus system. The influence of wind power integrated system on the optimal convergence is discussed. Finally,the accuracy and validity of the proposed model are verified by simulation.

关 键 词：风电场 交替方向乘子法 分解协调 分布式直流最优潮流 

分 类 号：TM744[电气工程—电力系统及自动化]