基于全纯嵌入潮流计算的可靠节点类型转换研究  

Research on Reliable Bus Type Switching for Power Flow Calculation Based on Holomorphic Embedding

作　　者：雷傲宇 罗永建 刘承锡 梅勇[1] 蒋友津 甄鸿越 蒋陈根 石侃 LEI Aoyu;LUO Yongjian;LIU Chengxi;MEI Yong;JIANG Youjin;ZHEN Hongyue;JIANG Chengen;SHI Kan(Power Dispatching and Control Center,CSG,Guangzhou 510663,China;School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China;Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network,Wuhan 430072,China;Electric Power Research Institute,CSG,Guangzhou 510663,China;Chuxiong Power Supply Bureau of Yunnan Power Grid Co.,Ltd.,Chuxiong,Yunnan 675000,China;Baoshan Power Supply Bureau of Yunnan Power Grid Co.,Ltd.,Baoshan,Yunnan 678000,China)

机构地区：[1]中国南方电网电力调度控制中心,广州510663 [2]武汉大学电气与自动化学院,武汉430072 [3]湖北省交直流智能配电网工程技术研究中心,武汉430072 [4]南方电网科学研究院,广州510663 [5]云南电网有限责任公司楚雄供电局,云南楚雄675000 [6]云南电网有限责任公司保山供电局,云南保山678000

出　　处：《南方电网技术》2024年第7期38-45,共8页Southern Power System Technology

基　　金：国家自然科学基金资助项目(52007133);中国南方电网有限责任公司科技项目(ZDKJXM20210063)。

摘　　要：针对潮流计算中节点类型转换可能导致的非可运行解问题,提出了一种基于全纯嵌入的可靠节点类型转换方法。首先,构建了考虑发电机节点无功功率和电压约束的潮流方程,并分析了目前常用的节点类型转换方法可能导致的非可运行解问题。然后基于复分析理论和全纯嵌入方法设计了潮流方程的全纯嵌入形式,并推导求解电压及发电机无功功率幂级数的递推方程。基于发电机无功功率幂级数判断发电机无功功率越限顺序,并设计了节点类型转换框架。最后,采取IEEE标准算例进行测试,表明了该方法能够较可靠地得到潮流方程的可运行解。A reliable bus type switching method based on holomorphic embedding is proposed to address the non-operational solution issues that may arise from bus type switching in power flow calculations.Firstly,a power flow equation considering the reactive power and voltage constraints of generator buses is constructed,and the non-operational solution problems that may arise from com⁃monly used bus type switching methods are analyzed.Then the holomorphic embedding form of power flow equation is designed based on complex analysis theory and holomorphic embedding method.The recursive equations of voltage and generator reactive power series are derived.Based on the power series of generator reactive power,the sequence of generator reactive power of limit is judged and the framework of bus type switching is designed.Finally,IEEE standard calculation examples are tested to indicate that the proposed method can reliably obtain operational solutions for power flow equations.

关 键 词：全纯嵌入 节点类型转换 潮流计算 无功功率约束 

分 类 号：TM744[电气工程—电力系统及自动化]