基于频域分析法的变压器非铁磁构件谐波杂散损耗研究  

Stray loss of non-ferromagnetic component under harmonic excitation condition based on frequency domain analysis

作　　者：赵志刚[1] 尹赛宁 郭莹[1] 刘佳[1] 杨凯 ZHAO Zhi-gang;YIN Sai-ning;GUO Ying;LIU Jia;YANG Kai(Province-Ministry Joint State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]省部共建电工装备可靠性与智能化国家重点实验室,河北工业大学,天津300130

出　　处：《电工电能新技术》2018年第7期90-96,共7页Advanced Technology of Electrical Engineering and Energy

基　　金：国家自然科学基金项目(51107026;51677052;51237005)。

摘　　要：为了研究高压直流输电系统中谐波磁场作用下变压器非铁磁构件杂散损耗的分布,本文基于Problem 21基准族中的P21a-0模型进行了详细实验研究和仿真分析。基于时域和频域测量,通过模型实验考察了在非正弦电流作用下非铁磁构件的损耗分布,并对这两种测量结果进行了对比分析,进而提出采用频域分析法仿真计算变压器非铁磁构件谐波损耗的实用措施,并进行了相关验证,结果表明,频域分析法的计算精度满足设计需要,且计算时间更短。在不同谐波电流激励条件下,模型损耗的计算结果和测量结果具有较好的一致性,所得结果和结论可为产品电磁设计提供参考。In order to study the stray loss of non-ferromagnetic structural parts of the transformer under the effect of harmonic magnetic field in high voltage direct current(HVDC)transmission,a detailed experimental research and simulation analysis were carried out based on the P21 a-0 model of Problem 21 benchmark family.The loss distribution of the non-ferro ferromagnetic component under the effect of non-sinusoidal load current is investigated by model experiment based on the time-domain measurement and frequency-domain measurement.Through the comparison and analysis of the results of these two measurements,a practical method to calculate the harmonic loss of the transformer non-ferromagnetic structure by frequency-domain analysis is proposed and the validity of the method is verified by related experiments.It is found that the calculation accuracy of the frequency-domain analysis method meets the design requirements and the calculation time is shorter than the time-domain for the acquisition of the harmonic loss of the non-ferromagnetic component.The calculation results and measurement results of the loss in the experimental model are consistent under the conditions of different harmonic current excitation,and the results and conclusions can provide a reference for the product electromagnetic design.

关 键 词：变压器 非铁磁构件 谐波电流 杂散损耗 频域分析 

分 类 号：TM206[一般工业技术—材料科学与工程]