电力电子变压器中高频变压器的设计方法

发布时间：2018-02-04 08:43

本文关键词： 电力电子变压器高频变压器纳米晶 AP法　出处：《电测与仪表》2015年23期 　论文类型：期刊论文

【摘要】：高频变压器是电力电子变压器的核心组成部分,担负着功率传输、电压变换和电气隔离等功能。针对当前高频变压器选型所存在的问题,提出了一种应用于电力电子变压器中高频变压器的设计方法。基于纳米晶软磁材料的高磁导性能,选择新型铁基纳米晶作为其铁芯材料,考虑电力电子变压器中移相全桥DC/DC变换器存在副边占空比丢失的问题,将面积乘积(AP)法与移相全桥DC/DC变换器的理论相结合,计算了高频变压器的变比和原副边绕组等参数。通过对高频变压器铁损、交流电阻、绕组温升和绝缘强度的测试和分析,结果满足设计要求,验证了设计方法的有效性和可行性。
[Abstract]:High frequency transformer is the core component of power electronic transformer, which is responsible for power transmission, voltage conversion and electrical isolation. A design method of high frequency transformer applied in power electronic transformer is presented. Based on the high magnetic conductivity of nanocrystalline soft magnetic material, a new type of iron based nanocrystalline is selected as its core material. Considering the loss of secondary duty cycle in phase-shifted full-bridge DC/DC converters in power electronic transformers, the area product method is combined with the theory of phase-shifted full-bridge DC/DC converters. The variable ratio of high frequency transformer and the parameters of the primary and secondary side windings are calculated. Through the measurement and analysis of the iron loss, AC resistance, winding temperature rise and insulation strength of the high frequency transformer, the results meet the design requirements. The validity and feasibility of the design method are verified.
【作者单位】：太原理工大学煤矿电气设备与智能控制山西省重点实验室;太原科技大学电子信息工程学院;
【基金】：国家自然科学基金资助项目(51377113) 山西省归国留学人员择优资助项目(2014)
【分类号】：TM402
【正文快照】： 0引言电力电子变压器是一种新型变压器,采用了大功率电力电子元器件及其控制技术,实现了电力系统中电压变换和能量传递等功能。传统电力变压器只能实现电压变换和电气隔离,而电力电子变压器可以灵活调整输入电流、输出电压以及输入功率因数[1]。目前对电力电子变压器的研究处

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