基于松弛牛顿法的互联电网并行分布式潮流计算方法  

Parallel and distributed load flow solution of interconnected power system using relaxed Newton method

作　　者：汪芳宗[1] 杨力森[1] 高学军[1] 龚国强[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16期18-22,共5页Relay

基　　金：三峡大学省级重点学科建设专项经费资助项目(002053)

摘　　要：分布式潮流计算是解决多区域互联电网一体化潮流问题的有效方法。以松弛牛顿法潮流求解公式为出发点,首先利用矩阵分裂法,将互联电网分解为相互独立的子系统,然后利用矩阵求逆运算的Sherman-Morrison-Woodbery公式对各子系统进行协调求解,从而导出了一种新的互联电网并行分布式潮流计算方法。与基于网络分解及协调计算的分布式潮流计算方法相比,该方法具有更好的收敛性。利用基于PVM的分布式计算环境,以IEEE118节点系统为例,对所提算法进行了装配、测试以及分析,初步验证了所提算法的有效性。The distributed computing is an efficient solution scheme for multi-area interconnected power system analysis. In this paper, a new distributed load flow algorithm is proposed based on relaxed Newton load flow formulation. In the derived algorithm, the whole system is first decomposed into a set of sub-systems through the splitting of admittance matrix, then the Sherman-Morrision-Woodbery formulation is used for the synchronous and coordination computation of the different sub-systems. The proposed method is a kind of parallel synchronous algorithm, and has a good convergence such as that of Newton-type methods. Tests on 1EEE 118 bus system in a distributed computing network is done, and the result prove principally that the proposed algorithm is applicable practical to distributed load flow solution of interconnected power system.

关 键 词：分布式潮流计算 松驰牛顿法 矩阵分裂 

分 类 号：TM744[电气工程—电力系统及自动化]