用不完全LU分解预处理的不精确潮流计算方法  

SOLVING POWER FLOW EQUATIONSWITH INEXACT NEWTON METHODSPRECONDITIONED BY INCOMPLETE LU FACTORIZATION WITH PARTIALLY FILL-IN

作　　者：蔡大用[1] 陈玉荣[1] 

机构地区：[1]清华大学数学科学系,北京市100084

出　　处：《电力系统自动化》2002年第8期11-14,共4页Automation of Electric Power Systems

基　　金：国家重点基础研究专项经费资助项目 (G19980 2 0 30 6 );国家自然科学基金重点资助项目 (198710 4 7)

摘　　要：详细讨论了不精确牛顿法求解潮流方程的问题 ,提出带部分填充量的不完全 LU分解方法是不精确牛顿法快速求解潮流的一种有效预处理方法。用结合这种预处理方法的不精确牛顿法对IEEE1 1 8节点的电力系统潮流进行了计算 ,结果表明这种算法比无填充量的不完全The problem s of power flow calculation with inexact Newton methods are discussed in detail.It is suggested that the sparse incomplete L U factorization IL U with partial fill- in is a better- preconditioned m ethod for solving power flow equations faster.Then,a serial im plem entation of the new m ethod is performed on the IEEE 118- bus system,and the numerical results show that the number of floating- point operation count of the new method is significantly less than that of the no fill- in case.

关 键 词：潮流计算 不精确牛顿法 不完全LU分解 GMRES方法 计算方法 电力系统 

分 类 号：TM744[电气工程—电力系统及自动化]