基于PSD-BPA的无功潮流收敛性二阶段自动调整方法  

Two-stage Automatic Adjustment Method for Reactive Power Flow Convergence Based on PSD-BPA

作　　者：王海军[1] 邢东峰[2] 朱宏超[3] 陈莉[1,4] 赵紫龙 WANG Haijun;XING Dongfeng;ZHU Hongchao;CHEN Li;ZHAO Zilong(Nanjing Railway Vocational and Technical College,Nanjing,Jiangsu 210031,China;Lanzhou Jiaotong University,Lanzhou,Gansu 730070,China;NARI Technology Co.,Ltd.,Nanjing,Jiangsu 211106,China;College of Energy and Electrical Engineering,Hohai University,Nanjing,Jiangsu 210098,China)

机构地区：[1]南京铁道职业技术学院,江苏南京210031 [2]兰州交通大学,甘肃兰州730070 [3]国电南瑞科技股份有限公司,江苏南京211106 [4]河海大学能源与电气学院,江苏南京210098

出　　处：《广东电力》2024年第11期72-82,共11页Guangdong Electric Power

基　　金：江苏省第六期333项目(500RC33322003,5002023006-1);南京铁道职业技术学院“青蓝工程”项目(QLXJ202111);南京铁道职业技术学院轨道交通基础设施智能检测研究中心科研平台资助项目(KYPT2023003)。

摘　　要：潮流计算是电网规划与运行分析的基础,目前一些系统分析工作需要收敛的潮流工况。针对电力系统研究所潮流及暂态稳定程序(power system department,Bonneville Power Administration,PSD-BPA)中运行方式安排时出现的无功潮流无解问题,提出一种无功潮流收敛性的二阶段自动调整方法。对于不收敛的潮流,首先通过节点类型转换将500 kV输电网上含无功补偿的节点转为PV节点,获取量化无功不收敛的指标。其次,按电网分区将转换类型的节点逐步还原,以还原节点的电压幅值及各分区的电压水平为参考制定第一阶段调整策略;通过Floyd算法确定输电网无功调整路径且由节点补偿量进行修正,获得第二阶段调整策略并使潮流恢复收敛。最后,以某省实际电网验证算法在无功潮流收敛性调整方面的有效性。Power flow calculation is the foundation of power grid planning and operation analysis and some system analysis work requires convergence of power flow conditions.This paper proposes a two-stage automatic adjustment method for the convergence of reactive power flow to address the problem of reactive power flow instability in the operation mode arrangement of PSD-BPA.For non-converging power flows,the nodes with reactive power compensation on 500 kV transmission network are firstly transformed into PV nodes through node type conversion to obtain quantitative indicators of non-converging reactive power.Secondly,the conversion type nodes are gradually restored according to the grid partition,and a one-stage adjustment strategy is formulated based on the voltage amplitude of the restored nodes and the voltage level of each partition as a reference.By using the Floyd algorithm to determine the reactive power adjustment path of the transmission network and correcting it with node compensation,a two-stage adjustment strategy is obtained and the power flow is restored and converged.Finally,the effectiveness of the algorithm in adjusting the convergence of reactive power flow is verified using an actual power grid in a certain province.

关 键 词：PSD-BPA 无功潮流收敛性 节点类型转换 二阶段自动调整 

分 类 号：TM744.2[电气工程—电力系统及自动化]