湖南大学学报（自然科学版）2017，Vol.44Issue(10)：68-74,7.DOI:10.16339/j.cnki.hdxbzkb.2017.10.010
基于感应滤波技术的换流变压器降噪方法
Noise Reduction Method of Converter Transformer Based on Inductive Filtering Technology
摘要
Abstract
Transformer vibration and noise are mainly caused by the magnetostriction of silicon steel sheets.Since the magnetostriction of silicon steel sheets can be aggravated by the harmonic,the vibration and noise of transformer will be more excited if harmonic flux is flowed within transformer.In this paper,the vibration mode of the core of a four-column single-phase converter transformer prototype was built,and the influence of harmonic flux on the magnetostriction of silicon steel sheets were discussed.From the view point of acoustics,the relevance of harmonic flux and noise of transformer was verified.Second,based on the basic principle of inductive filtering method,the noise reduction feasibility of this method was theoretically analyzed.Finally,one 12 pulses rectifier system was built.The experimental data shows that the converter transformer noise can be effectively suppressed by using the inductive filtering method,and noise reduction performance of this filtering method is more preferable,compared with other traditional filtering methods.关键词
换流变压器/谐波磁通/感应滤波/磁致伸缩/振动和噪声Key words
converter transformer/harmonic flux/inductive filtering/magnetostriction/vibration and noise分类
信息技术与安全科学引用本文复制引用
罗隆福,郭熙坤,赵亮,邹津海,周方圆,吴明水,史栋杰..基于感应滤波技术的换流变压器降噪方法[J].湖南大学学报（自然科学版）,2017,44(10):68-74,7.基金项目
国家自然科学基金资助项目(51077045,5216A014007V),National Natural Science Foundation of China(51077045,5216A014007V) （51077045,5216A014007V）
