一种改进的辐射状配电网潮流计算方法  

A modified power flow calculation method for radial distribution system

作　　者：刘蔚[1] 宁文辉[1] 黄东山[1] 

机构地区：[1]广西电力试验研究院有限公司,广西南宁530023

出　　处：《电力系统保护与控制》2009年第15期1-4,共4页Power System Protection and Control

摘　　要：配电网潮流计算是配电网络分析的基础。对比分析了前推回代法和牛顿法在求解辐射状配电网潮流时的特点和区别,并提出了一种改进的前推回代算法。该算法在原有前推回代算法基础上修改了回代求解的节点电压修正方程。提出的算法简单实用,且具有前推回代法简单快速和牛顿法收敛性好的特点。文中仿真算例给出了前推回代法和该文方法的计算结果,表明提出的方法具有更快的计算速度和更好的收敛特性。Distribution power flow calculation is the base of distribution system analysis. The characteristics and differences of back/forward sweep method and Newton method are compared and analyzed, and a modified back/forward sweep method is proposed based on the conventional back/forward sweep method, in which the correction equation of node voltage in the back sweep process is just simply replaced by a new equation. The proposed method is not only simple and fast like back/forward sweep method, but also has better convergence characteristic like Newton method. The results of simulation tests presented show the proposed method has faster power flow solution of radial distribution system and better convergence characteristic when compared with the conventional back/forward sweep method.

关 键 词：配电网 潮流 前推回代法 

分 类 号：TM711[电气工程—电力系统及自动化]