Based On The Leakage Inductance Of The Transformer In The Ansys Simulation

Magnetic leakage transformer is one of the particular transformers which is used in the microwave oven. With the popularity of the microwave ovens, the fierce competition in the market and the requirements for the microwave oven's feature and performance by people, to get more market, the microwave businesses put a lot of attention on the microwave oven's research and development. Magnetic leakage transformer, the indispensable component of the microwave oven, effects the microwave oven's working condition. Both microwave oven manufactures and transformer manufactures are looking for a method and software which can design and development quickly. However, because the structure of the transformer is complicated, there isn't a method which can solve the question in the transformer's design, especially the exact field distribution. The engineers only can design transformer by trying and experience, that makes the transformer design cycle long and costly. For this situation, a simulation and optimization for a dedicated transformer was done in this paper. Research contents of this paper include the following several:Firstly, a particular transformer was simulated with two-dimensional modeling by using ANSYS. The no-load secondary voltage, the core's magnetic field and the distribution of magnetic leakage field have been got. The transformer was measured and the experimental data were got. These data were compared with the simulation results to check whether the simulation method is correct or not.Secondly, according to the simulation and experimental results, three-dimensional simulation has been done. The magnetic field distribution which was got by simulation is consistent with the existing theory of the transformer. The magnetic field distribution which was got by simulation explains the characteristics of the transformer.Finally, the are-shaped structure of transformer was proposed. The transformer was optimized to save material and cost. At the same primary voltage, the secondary voltage fluctuations reduced from 13V to 4V, increased by sixty-eight percent by adjusting the core's structure and size. One tenth of the core lamination was saved at the mean time.