实际工况下机车牵引变压器铁心损耗模型建立与验证  

Establishment and verification of core loss model of locomotive traction transformer under actual working conditions

作　　者：郭柏龄 迟青光 陈吉超 GUO Bailing;CHI Qingguang;CHEN Jichao(CRRC Dalian Co.,Ltd.,Dalian 116021,China;Dalian Jiaotong University,Dalian 116028,China)

机构地区：[1]中车大连机车车辆有限公司,辽宁大连116021 [2]大连交通大学,辽宁大连116028

出　　处：《电工电能新技术》2024年第2期39-46,共8页Advanced Technology of Electrical Engineering and Energy

摘　　要：为实现电力机车牵引变压器的精细化设计,降低产品设计中的冗余量,提高产品的效率减小体积,需要准确预估机车牵引变压器在实际工况下的损耗特性。本文首先模拟牵引变压器实际工作状态,对谐波交变磁化下牵引变压器用电工材料电磁特性的模拟展开研究工作。通过测量牵引变压器实际工作时的电磁特性曲线,分析铁心材料的电磁特性。然后通过对磁化角度和谐波次数的非线性关系研究,建立基于损耗模型系数的磁化角度变系数方程,提出谐波损耗非线性修正系数,进而提高机车牵引变压器损耗模型计算精度。In order to realize the refined design of the electric locomotive traction transformer,reduce the redundancy in the product design,and improve the efficiency of the product and reduce its volume,it is necessary to accurately calculate its loss characteristics in actual work during the design.Traction transformer is a key component of electric locomotive,how to reduce its size and improve its efficiency has always been the research focus of transformer designers.Therefore,this article first simulates the actual working state of the traction transformer,and starts the simulation research work on the electromagnetic characteristics of the electrical materials used in the traction transformer under the harmonic alternating magnetization.By measuring the electromagnetic characteristic curve of the traction transformer in actual work,the electromagnetic characteristic of the core material is analyzed.Then,considering the non-linear problems of the magnetization angle and the harmonic loss model under harmonic alternating magnetization,the traditional loss model is improved.The variable coefficient equation of the loss model coefficients changing with the magnetization angle and the correction coefficient considering the nonlinearity of the harmonic loss are given.Thereby improving the calculation accuracy of the loss model.It also lays the foundation for the energy-saving optimization design of electric locomotive electrical products.

关 键 词：铁耗 牵引变压器 交变磁化 磁化角度 谐波分量 

分 类 号：TM402[电气工程—电器]