A new approach to modeling three-phase transformer connections
A new approach to modeling three-phase transformer connections
复制标题
三相变压器连接建模的新方法
DOI：
--
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
W. Carr
中科院分区：
文献类型：
--
作者：
W.H. Korsting;W. H. Phillips;W. Carr
用于潮流和短路研究的三相变压器连接建模可以采用多种形式，具体取决于所做的假设。很多时候，简化假设会导致完全错误的答案。如果要获得正确的结果，则必须使用各种连接的精确模型。精确的模型必须满足基尔霍夫电压和电流定律、变压器绕组两侧电压和电流之间的理想关系，并且模型必须代表特定连接导致的任何相移。已开发出适用于所有常见三相变压器连接的新模型，可满足上述所有要求。本文将讨论限制为不接地星形-三角形连接以及为潮流和短路研究而开发的模型。
The modeling of three-phase transformer connections for power-flow and short-circuit studies can take on many forms depending upon the assumptions made. Too many times, simplifying assumptions lead to answers that are totally wrong. Exact models of the various connections must be used if correct results are to be achieved. The exact models must satisfy Kirchhoffs voltage and current laws, the ideal relationship between the voltages and currents on the two sides of the transformer windings and the models must represent any phase shift that is a result of the particular connection. New models for all common three-phase transformer connections have been developed that satisfy all of the requirements as stated above. This paper limits the discussion to the ungrounded wye-delta connection and the model developed for use in power-flow and short-circuit studies.