Study of detachable transformer using fem on contactless power transmission system

Detachable transformer is an important component of contactless power transmission system. Compared with traditional transmission modes, it has following advantages. There is no contact between supplying equipments and loads, no friction, which brings convenience to maintenance; no noise pollution et al. It can work in any formidable conditions with higher frequency and less volume. This paper offers several guidelines to realize systems by ANSYS. ANSYS relies on finite element method (FEM). Based on this theory, it may have excellent performance in AC harmonic magnetic field analysis that will be discussed in this paper by setting element types and material attributes, modeling, meshing et al. This paper sets up three-dimensional model of dissociable transformer by ANSYS. The object of 3-D analysis is to find out the optimum structure with highest transmission efficiency and smallest electromagnetic interference from all the switch- mode power supplies. Different structures suit on different application conditions and have their own features. For the sake of comparison, the analysis chooses PM-cores, and models in different structures. Detachable transformer has a loosely coupled structure. It is most important to find a way increasing efficiency as much as possible according to given conditions. This paper discusses conditions on which the highest efficiency can be acquired through emulation to eliminate bad influence to the whole system by this link. IN the end, we give some experimental results about this system.