Numerical Study on Flow-Heat Transfer of Converter Transformer Based on Actual Size Parameters

In order to more accurately study the distribution of fluid field and temperature field of converter transformer, and explore the internal working characteristics of converter transformer, in this paper, the coupling distribution of electromagnetic field, fluid field and temperature field in the converter transformer is explored based on the finite element analysis method, and the simulation model of the space effect of the converter transformer under the actual size parameters is established. The model uses the finite element analysis method to study the fluid field-temperature field of converter transformer, which has strong applicability and high accuracy, and can accurately study the hot spot distribution and temperature rise of converter transformer. In order to verify the effectiveness of simulation model based on the finite element analysis method, this paper calculates the loss and heat dissipation according to the physical and chemical parameters of the actual converter transformer, and obtains the temperature field distribution of the simplified converter transformer model by data mapping method. And after comparing it with the simulation results of the simplified converter transformer model built by the finite element simulation software, the fluid field and temperature field obtained by the two methods are almost the same, which verifies the accuracy of the finite element simulation. Finally, the fluid field-temperature field distribution of the actual size parameter model of the converter transformer is calculated by using the finite element analysis method, and more accurate multi field coupling results are obtained, which provides theoretical support for the life prediction, high temperature spots prediction and fire and explosion protection of the converter transformer.