Calculation Method for Leakage Inductance of High Power Medium Frequency Transformers Based on Flux Linkage Partition
Lü Fangcheng1,Guo Yunxiang1,Fu Chao2,Li Peng3
1.Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense North China Electric Power University Baoding 071003 China; 2.State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Baoding 071003 China; 3.CSR Qingdao Sifang Locomotive and Rolling Stock Co.Ltd. Qingdao 266111 China
Abstract：Based on a one-dimensional magnetic field model of medium frequency transformers (MFT),the analytical equation for the leakage inductance of the MFT is derived with the flux linkage partition method which is based on the characteristics of the magnetic field distribution.On this basis,this paper assumes that the flux is not link or entirely link with the winding which belongs to its region.The derivation process and the final equation of the leakage inductance are simplified by using the average value of these two postulated conditions.The correctness and effectiveness of the method is verified by the comparison of the calculated and measured values.
律方成，郭云翔，付超，李鹏. 基于磁链分区的大功率中频变压器漏感参数计算方法[J]. 电工技术学报, 2016, 31(5): 164-169.
Lü Fangcheng,Guo Yunxiang,Fu Chao,Li Peng. Calculation Method for Leakage Inductance of High Power Medium Frequency Transformers Based on Flux Linkage Partition. Transactions of China Electrotechnical Society, 2016, 31(5): 164-169.
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2016, Vol. 31 
