含分布式光伏接入的辐射型配电网快速潮流计算  

Fast Power Flow Calculation for Radiation Distribution Network with Distributed Photovoltaic Access

作　　者：李海啸 周林[1] Li Haixiao;Zhou Lin(State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University ,Chongqing 400044 China)

机构地区：[1]输配电装备及系统安全与新技术国家重点实验室(重庆大学)

出　　处：《电工技术学报》2019年第19期4119-4134,共16页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金资助项目（51477021）

摘　　要：针对含分布式光伏接入的辐射型配电网,结合光伏本地无功-电压控制策略,提出一种快速潮流计算方法,该方法具有简明的线性表达式,能够直接进行潮流近似求解。通过压缩映射定理和矩阵理论,论证了利用该方法所求得的潮流解为系统实际运行的可行解。利用 56 母线系统对所提方法进行测试,与现有的配电网潮流计算方法进行对比,并分析了网络参数对所提快速潮流计算方法的成立以及计算结果精度的影响。仿真结果表明,所提方法能够很好地适用于含分布式光伏接入的辐射型配电网快速潮流分析。For radiation distribution networks with distributed photovoltaic access, combined with the photovoltaic local voltage-var control strategy, a fast power flow calculation method is proposed. This method has a concise linear expression and could approximated power flow solutions. In this paper, through compression mapping theorem and matrix theory, it is rigorously demonstrated that the power flow solutions obtained by the proposed method is the practical feasible solutions to the system. The method was tested by a 56-node system and compared with the existing calculation method of distribution network. Moreover the influence of network parameters on the establishment of the proposed rapid power flow calculation method and the accuracy of the calculation results are analyzed. The simulation results indicated that the proposed method could be well applied to the analysis of the radiation distribution networks with distributed photovoltaic access.

关 键 词：分布式光伏 辐射型配电网 快速潮流计算 压缩映射定理 矩阵理论 

分 类 号：TM464[电气工程—电器]