基于松弛牛顿法的配电网潮流计算方法  

Relaxed Newton method for power flow analysis of distribution systems

作　　者：汪芳宗[1] 向小民[1] 袁兆强[1] 

机构地区：[1]三峡大学电气信息学院,湖北宜昌443002

出　　处：《继电器》2007年第6期21-24,共4页Relay

摘　　要：配电网潮流的分析计算是配电自动化系统中的一项最基本的高级应用功能。将矩阵求逆运算的松弛方法应用于配电网的潮流计算,并利用矩阵分裂法,导出了一种新的配电网潮流计算算法。导出的算法具有通用性,既可用于放射形配电网,又适用于含有环网的一般配电网络。算法的求解过程简单、快捷,无需直接形成和计算雅可比矩阵、无需三角因子分解等过程,直接由前代/回代或回代/前代过程就能完成。以一个实际的中等规模配电系统为例,测试、分析和比较了算法的收敛性和计算速度,证实了所提算法的有效性。This paper describes a novel power flow solution algorithm for solving distribution systems, using the relaxation method for Jacobian matrix inversion, as well as the matrix splitting method for distribution network with loops. The derived method is general for load flow solution of both radial distribution systems and distribution networks with loops. Furthermore, with the derived formulation, the solution procedures become very simple and fast, because the conventional procedures of forming the Jacobian matrix and the sparse triangular factorization are reduced,and then the back/forward substitution are replaced only by the direct back/forward substitution. Tests on a practical distribution system show that the proposed method is robust and efficient for practical power flow analysis of distribution systems.

关 键 词：配电系统 潮流计算 松驰牛顿法 矩阵分裂 前推回推法 

分 类 号：TM744[电气工程—电力系统及自动化]