Design And Research On A Novel Transverse Flux Machine

As a novel invert-fed electric machine, the transverse flux permanent-magnet electric machine (TFPM) presents many advantages, such as lower speed, higher torque-density, higher reliability and higher over-load ability, and therefore the transverse flux permanent-magnet electric machine (TFPM) becomes more and more important in the electric direct driving area. However, the complicated structure, the difficulty in manufacturing, higher cost of production, and. shortage of designing and analysing methods for TFPM limit its development. In this thesis, a novel topology structure of TFPM was proposed. Based on this prototype, an in-deep research work was proceed, and have a good success as below.Firstly, On the basis of in-depth analysing and understading the existing various topology structures and the development stutus of the transverse flux permanent-magnet electric machine at home and abroad, proposed a novel topology structure of TFPM which is different from those of the traditional TFPMs. Using a common-linkage stator core on which there is a lot of slots for positioning and mounting in this novel topology structure, the outside and inside core of stator-poles can be inserted into slots easily just like the building blocks, therefore, this new structure can simplifies the manufacturing process, reduces the cost of production, enhances the accuracies for positioning and mounting, standardizes the stator parts, et al. This novel topology structure is an innovation, and has a better practicability.Secondly, according to the complicated structure of magnetic circuit of the TFPM, and the feature that the stator-magnetic field created by armature current and the rotor-magnetic field created by permanent-magnet are not located in a series of parallel-planes which have the same direction, make a thorough study of the fundamental theory of three-dimensional equivalent magnetic network method (3DEMN) and its application in the inside areas of permanent-magnet and armature coil. Using this method calculate the main parameters and performance of the prototype. This project improve the connection between the scientific research and engineering calculation practice.Thirdly, according to the structure feature and operational performance of the two-phase TFPM, a control system was designed and prepared. The performance under unipolar conducting mode was analysed in detail,Fourthly, A non-linear mathematic model for TFPM was established, and an...