间谐波对电工钢片励磁特性及损耗影响的实验研究  

Experimental Research on Excitation Characteristics and Loss of Steel Sheet under Interharmonic Excitation

作　　者：李慧奇[1] 贾一凡 陈新 马光 张俊杰[4] Li Huiqi;Jia Yifan;Chen Xin;Ma Guang;Zhang Junjie(Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense,North China Electric Power University Baoding 071003 China;State Grid Hebei Electric Power Co.Ltd Shijiazhuang Power Supply Branch Shijiazhuang 050051 China;Global Energy Interconnection Research Institute Beijing 102209 China;Baoding Tianwei Baobian Electric Co.Ltd Baoding 071056 China)

机构地区：[1]华北电力大学河北省输变电设备安全防御重点实验室,保定071003 [2]国网河北省电力有限公司石家庄供电分公司,石家庄050051 [3]全球能源互联网研究院,北京102209 [4]保定天威保变电气股份有限公司,保定071056

出　　处：《电工技术学报》2018年第18期4191-4198,共8页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金重点资助项目(51577066)

摘　　要：基于爱泼斯坦方圈,搭建了可产生任意间谐波激励的电工钢励磁特性和损耗特性实验平台。基于该实验平台研究间谐波对电工钢片励磁电流的影响,并应用Prony算法分析了间谐波作用下方圈感应电压和励磁电流的频率特性。最后,分析和总结了间谐波的频率和幅值对电工钢片的励磁特性和损耗的影响规律。该文的工作为研究间谐波对电力变压器等设备的影响和抑制奠定了基础。Based on Epstein frame,an experimental platform with the capacity to generate arbitrary waveforms is established,which can analyze the loss and excitation characteristics of electrical silicon steels.Then,the effects of interharmonics on the exciting current of electrical steel sheet are studied.The spectral characteristics of the induced voltage and the exciting current are analyzed by Prony algorithm.Finally,the influence of the frequency and amplitude of the interharmonics on the excitation characteristics and loss of the electrical steel sheet is analyzed and summarized.The results of this paper lay the foundation for studying the effects of interharmonics on power transformers and other equipment.

关 键 词：间谐波 爱泼斯坦方圈 电磁特性 PRONY算法 

分 类 号：TM275[一般工业技术—材料科学与工程]