电力系统自动化2018，Vol.42Issue(12)：81-86,6.DOI:10.7500/AEPS20170307005
用于迭代法潮流计算的改进Jacobi预处理方法
Improved Jacobi Pre-treatment Method for Solving Iterative Power Flow Calculation
唐灿 1董树锋 1任雪桂 2尹璐 2鞠力2
作者信息
- 1. 浙江大学电气工程学院,浙江省杭州市 310027
- 2. 北京电力经济技术研究院,北京市 100055
- 折叠
摘要
Abstract
In order to improve the speed of power flow calculation and meet the requirement of real-time calculation,the iterative methods for linear equations are applied to the power flow calculation.When the spectral distribution of the coefficient matrix is relatively scattered,however,the speed of iterative method is slow and even not convergent.The coefficient matrix is needed to be pre-treated to solve the problems mentioned above.Firstly,the characteristic of Jacobi matrix in the power flow calculation is analyzed and segmentally processed based on the PV and PQ nodes.The bigger numbers are found and act as preconditioners.Then,the inverse matrix of the preconditioners is multiplied by the coefficient matrix A and the constant item b,and the original linear system is transformed into a new equivalent linear system which can be easily solved.The speed of solving linear equations in power flow calculation is highly improved.The simulation result shows that the algorithm can solve the power flow equations efficiently.关键词
潮流计算/稀疏线性方程组/预处理/稀疏矩阵/图形处理器通用计算Key words
power flow calculation/sparse linear equations/pre-treatment/sparse matrix/general calculation of graphics processor引用本文复制引用
唐灿,董树锋,任雪桂,尹璐,鞠力..用于迭代法潮流计算的改进Jacobi预处理方法[J].电力系统自动化,2018,42(12):81-86,6.
