摘要
在变压器励磁特性的BP模型基础上 ,提出了一种修正的BP模型 ,并推导了相应的算法 .它通过添加一线性项 ,来模拟励磁支路深度饱和后的特性 .结果表明 ,与已有的修正反正切函数或双曲函数模型相比 ,该模型不仅具有较高的精度 ,而且对变压器饱和特性的模拟也更为合理 .该模型对于变压器励磁涌流与操作过电压计算的准确性 ,具有重要的意义 .
Based on the BP (back-propagation) model for excitation characteristics of transformer, a modified BP model is presented and the corresponding algorithm is also deduced. The characteristics of deeply saturated magnetizing branch are simulated by adding a new linear term. The results show that the model has good fitting precision. It is more reasonable than traditional modified arc tangent function or hyperbolic function model for the saturation characteristic of transformer. It is of great importance for calculating the magnetizing inrush currents of transformer and switching surges.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2001年第2期111-115,共5页
Journal of Xi'an Jiaotong University
基金
国家自然科学基金!资助项目 (5 97770 14)
关键词
励磁支路
饱和特性
修正BP模型
变压器
Algorithms
Backpropagation
Magnetization
Mathematical models
Modification
