Design and Optimization of Relative Excitation Parameters for a New Strip Transverse Flux Induction Heating Apparatus
Wang Youhua1,2, Wu Jiancheng1,2, Li Bin1,2, Liu Chengcheng1,2
1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of Technology Tianjin 300132 China; 2. Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province Hebei University of Technology Tianjin 300132 China
Abstract：A new transverse flux induction heating device(TFIH) was proposed and designed, and its excitation parameters were optimized since the original TFIH has the disadvantages of high magnetic flux leakage, high magnetic resistance and low magnetic permeability in the magnetic circuit. The new TFIH has two additional yokes in the end of iron core based on the original TFIH. The eddy current and temperature field of both the original and new proposed TFIH devices were obtained under the same excitation condition through the improved magnetic-thermal coupling method. The calculated results show that the effective value of alternating magnetic flux in the proposed TFIH is higher and magnetic flux leakage is lower than that in the original TFIH. Thus, when heating state is stable, a higher temperature rising and a more even temperature distribution on the strip surface at the outlet of the new TFIH can be obtained. The heating efficiency is better than that of the original device. Meanwhile, considering that the proposed TFIH still has the disadvantage of uneven temperature distribution on the strip, the temperature distribution of the strip surface under different magnitude and frequency parameters of excitation current is calculated, and the best magnitude and frequency are obtained. It can be concluded that the uniform temperature distribution on the surface of strip is the best and its temperature relative nonuniformity is only 2.9%, when the magnitude and frequency of excitation current is 1 000A and 500Hz.
汪友华, 吴建成, 李宾, 刘成成. 新型带材横向磁通感应加热器设计与相关激励参数优选[J]. 电工技术学报, 2020, 35(4): 745-757.
Wang Youhua, Wu Jiancheng, Li Bin, Liu Chengcheng. Design and Optimization of Relative Excitation Parameters for a New Strip Transverse Flux Induction Heating Apparatus. Transactions of China Electrotechnical Society, 2020, 35(4): 745-757.
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2020, Vol. 35 
