Optimal Design of Magnetic ComponentsinPlasma Cutting Power Supply

2017 International Conference on Sustainable Development on Energy and Environment Protection

能源学;生态环境科学

Jiang, J.F.^1 ; Zhu, B.R.^1 ; Zhao, W.N.^2 ; Yang, X.J.^2 ; Tang, H.J.^2

Electric Power Science Research Institute, Shanghai Electric Power Company, State Grid, Shanghai, China^1

Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China^2

关键词: High power rates;    Magnetic components;    Optimal design methods;    Optimal solutions;    Optimization design;    Plasma cutting;    Transformer structure;    Winding arrangement;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/86/1/012040/pdf
DOI  :  10.1088/1755-1315/86/1/012040

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Phase-shifted transformer and DC reactor are usually needed in chopper plasma cutting power supply. Because of high power rate, the loss of magnetic components may reach to several kilowatts, which seriously affects the conversion efficiency. Therefore, it is necessary to research and design low loss magnetic components by means of efficient magnetic materials and optimal design methods. The main task in this paper is to compare the core loss of different magnetic material, to analyze the influence of transformer structure, winding arrangement and wire structure on the characteristics of magnetic component. Then another task is to select suitable magnetic material, structure and wire in order to reduce the loss and volume of magnetic components. Based on the above outcome, the optimization design process of transformer and dc reactor are proposed in chopper plasma cutting power supply with a lot of solutions. These solutions are analyzed and compared before the determination of the optimal solution in order to reduce the volume and power loss of the two magnetic components and improve the conversion efficiency of plasma cutting power supply.