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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
【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 LU分解预处理的不精确牛顿法具有较少的浮点运算次数
【Abstract】 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;
【Key words】 power flow calculation; inexact Newton m ethod; incom plete L U factorization; GMRES methods;
【Key words】 power flow calculation; inexact Newton m ethod; incom plete L U factorization; GMRES methods;
【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)
- 【文献出处】 电力系统自动化 ,Automation of Electric Power Systems , 编辑部邮箱 ,2002年08期
- 【分类号】TM744
- 【被引频次】48
- 【下载频次】616