电网技术2012，Vol.36Issue(3)：113-119,7.
以支路为基元的封闭格式潮流算法
A Closed Format Power Flow Algorithm Based on Branch Models
摘要
Abstract
To reduce the trouble in coping with newly added elements during the calculation of power flow correction equations, taking micro-increment branch models as basic elements and fully utilizing the incidence among the factorization process of Newton power flow calculation in polar coordinates, the numbering of nodes and the sparse storage, a closed format power flow algorithm is proposed. The proposed algorithm is expressed by correction equations of branch increment models and directly related to Jacobian matrix in additional form, so the admittance matrix is not needed. According to the incidence between node numbers and factorization, in the meantime when nodes are being numbered the topological structure that will be related to numerical calculation is traced to make automatic location of forward substitution operation and automatic releasing of backward operation, thus a closed calculation pattern is formed to improve the performance of power flow algorithm. Taking a simple 6-bus system as example, the process of closed format calculation is expounded. By means of three IEEE standard calculation examples, the superiority of the proposed algorithm in saving memory and speeding up calculation is verified.关键词
潮流计算/稀疏技术/节点编号/LU分解/支路微增模型Key words
power flow calculation/sparse technology/node numbering/LU decomposition/micro-incrementbranch models分类
信息技术与安全科学引用本文复制引用
李文博,韩学山,张波..以支路为基元的封闭格式潮流算法[J].电网技术,2012,36(3):113-119,7.基金项目
国家自然科学基金项目（51077087,51007047）. （）
