Optimization design of solid insulation multi-winding high frequency transformer

Abstract

Several typical transformer design methods are introduced first, and their main characteristics and applications are compared and analysed. On this basis, an optimal design scheme of solid insulation multi-winding high frequency transformer is proposed. The influence of insulation distance on the structure is fully considered in the proposed scheme, and the additional copper loss caused by skin effect and proximity effect at high frequency is calculated in detail. Therefore, the transformer design can determine the appropriate structure according to the insulation requirements, and also meet the requirements of high efficiency high power density targets. This paper introduces the process of transformer optimization design in detail, analyses the analytical algorithm of transformer design under certain constraints, and gives some basic conclusions of transformer design under different capacities through data and finite element simulation. Finally, combined with experiments, the effectiveness of this design scheme is verified.