考虑平衡端点相位不对称及光伏接入的低压配电网三相潮流模型  

A Three-Phase Power Flow Model for Low-Voltage Distribution Networks Considering Balanced Bus Phase Asymmetry and Photovoltaic Access

作　　者：周洋 黄德志 李培栋 冀凯琳 刘学峰 谭洪[3] ZHOU Yang;HUANG Dezhi;LI Peidong;JI Kailin;LIU Xuefeng;TAN Hong(State Grid Economic and Technological Research Institute Co.,Ltd.,Beijing 102209,China;State Grid Yiwu Electric Power Company,Yiwu 322000,China;College of Electrical Engineering and New Energy,China Three Gorges University,Yichang 443000,China)

机构地区：[1]国网经济技术研究院有限公司,北京102209 [2]国网浙江省电力有限公司义乌市供电公司,浙江义乌322000 [3]三峡大学电气与新能源学院,湖北宜昌443002

出　　处：《中国电力》2024年第10期190-198,共9页Electric Power

基　　金：国家自然科学基金资助项目(52307138);国家电网有限公司技术服务项目(B3441324F004)。

摘　　要：考虑到光伏逆变电源接入低压配电网的多样接入方式和复杂控制策略,建立了光伏逆变电源的三相电压与功率相对于中性点的控制模型。在此基础上,进一步提出了一个综合考量平衡端点相位不对称性以及光伏逆变电源接入因素的低压配电网三相潮流计算模型。为了验证该模型的有效性和准确性,在经过修正的IEEE 13节点测试系统上进行了仿真实验。仿真结果表明:所构建的模型能够精确、高效地计算包含光伏逆变电源在内的低压配电网三相潮流,为低压配电网的规划与运行提供了有力的理论支持和技术手段。Considering the diverse connection modes and complex control strategies of photovoltaic(PV)inverter power sources integrated into low-voltage distribution networks,this paper delves into the establishment of a control model for the three-phase voltages and powers of PV inverter power sources relative to the neutral point.On this foundation,the paper further proposes a comprehensive low-voltage distribution network three-phase power flow calculation model that takes into account both the asymmetry of phase angles at balanced terminals and the factors involved in the integration of PV inverter power sources.To validate the effectiveness and accuracy of this model,simulation experiments were conducted on a modified IEEE-13 node test system.The simulation results clearly demonstrate that the model constructed in this paper can accurately and efficiently calculate the three-phase power flow in low-voltage distribution networks incorporating PV inverter power sources,providing robust theoretical support and technical means for the planning and operation of low-voltage distribution networks.This work is supported by National Natural Science Foundation of China(No.52307138)&Technical Services Project of SGCC(No.B3441324F004).

关 键 词：三相四线制 低压配电网 光伏逆变电源 智能电表 

分 类 号：TM615[电气工程—电力系统及自动化] TM73