The Preconditioned CG Method for Large Scale Power Flow Solution

作者：Weimin Zeng · 发表于：Proceedings of the CSEE · 年份：2006 · 被引用次数：4 · 研究领域：Electromagnetic Scattering and Analysis、Matrix Theory and Algorithms、Electromagnetic Simulation and Numerical Methods

This paper presents a detailed investigation into the problem of the preconditioned CG method for Large-scale power flow solution. The preconditioned CG method was used instead of the traditional LU direct method for solution of the large sparse sets of linear equations. Studies comparing the performance of kinds of preconditioner have been preformed. An Incomplete Cholesky preconditioner based on a novel ordering scheme has been presented which has been proved more effective for using CG method for power flow computation. Tests have been performed with networks of IEEE Test Systems and synthesized bulk systems, and shown the better effectiveness in computation for the proposed method than other preconditioners, even so for super large-scale power system comparing with LU direct method.