摘要
正确建立变压器的数学模型和仿真模型是电力系统稳态、暂态分析的基础,由于变压器主磁路的非线性,为变压器及其系统的准确分析带来困难。在对国内外的一些变压器模型及其理论进行研究和分析比较的基础上,分析了变压器主磁路非线性对电动势、电流的影响,通过空载特性曲线建立了一种考虑饱和、铁耗的变压器稳态、暂态仿真模型,同时分析了该模型与其他模型相比的优劣,提出了该模型的适用范围及其改进方向,并通过仿真结果和实验结果的比较验证了模型的可行性和准确性。
Based on some theories,and to analyze transformers and many different models to compare, a new kind of transient mathematical model on transformers is presented. In the model, the saturation of magnetic circuit and core losses are considered and the effects of nonlinearity of main magnetic circuit for voltage and current of transformers are analyzed. Then the applications range and the direction to improve of the model are referred to through comparing the model with other models. And the feasibility and accuracy of the model are verified through comparing the results of simulation with the results of experiments.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2003年第10期63-66,共4页
Journal of Chongqing University
基金
三峡总公司科研项目(2001013)
关键词
变压器
模型
磁路饱和
铁耗
transformer
mathematical model
saturation of magnetic circuit
lron loss
