摘要
在已取得的基于链表拓扑的配网短路计算层等效法的成果基础上,将算法的应用范围扩展至有环网络。算法利用替代定理将有环配电网络进行拆环等效得到若干结构简单的无环树状子网,再对各子网进行基于电源路径的戴维南等效得出短路电压的低阶矩阵方程,从而算出短路电流,并阐述了算法在多点短路和不对称短路下的应用。通过复杂度分析和算例分析体现了算法的高效性、准确性和在多种复杂环境下的通用性。
Basing on the achievement that the level equivalent algorithm for short circuit calculation in dendriform network, this article will expand the application scope of the algorithm to common networks with loops. In the algorithm, complex grid is translated to some dendriform subnets with substitution theorem, and then the voltage matrix equation will be acquired by Thevenin＇s equivalent on power paths, the current of broken node will be calculated sequentially. The algorithm overcomes the troubles that took place in node matrix algorithm such as great spending for resistance, low agility of system reconstruct, and extent the localization to loop in direct analyzing algorithm. Its availability, good efficiency and precision are proved in the last examples.
出处
《电工技术学报》
EI
CSCD
北大核心
2010年第10期150-157,共8页
Transactions of China Electrotechnical Society
关键词
短路计算
树型结构
层等效
环网
替代定理
复杂度分析
Short-circuit calculation, radial structure, level equivalent, loop, substitution theorem,eompliexity analysis
