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作者机构:Brunel Univ Brunel Inst Power Syst Uxbridge UB8 3PH Middx England
出 版 物:《INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS》 (国际电力与能源系统杂志)
年 卷 期:2010年第32卷第8期
页 面:835-839页
核心收录:
主 题:Power flow Newton Raphson algorithm Starting process
摘 要:This paper introduces new models which approximate the AC loadflow problem, but are able to converge (using the Newton Raphson algorithm) from a wider range of starting points. The solution of the pseudo-loadflow models can provide a robust starting process for the Newton Raphson solution of the conventional loadflow problem. It is also shown that pseudo-loadflow solutions exist in many cases where the AC loadflow equations do not appear to have any solution, and in such cases the pseudo-loadflow solution can provide useful information to assist in locating the cause of infeasibility of the AC loadflow model. Test results are presented for illustrative small network examples and also for larger test networks. The computational requirements of the proposed methods are similar to those of the conventional Newton Raphson loadflow algorithm. (C) 2010 Elsevier Ltd. All rights reserved.