Optimization Analysis And Experimental Study On Stator - Split Axial Flux Switching Hybrid Excitation Synchronous Motor

An axial flux-switching hybrid excitation synchronous machine (AFHESM) combines theadvantages of the magnetic flux-switching motor and the axial flux permanent magnet motor. Ithas a good ability of flux adjustment. A three-phase12/10-pole single-stator/double-rotorAFHESM is studied in this paper. Its working principle and optimization design method is intodetails. A new prototype is trial-manufactured whose experiment and analysis is studied. Theconclusion is of a certain reference value to the further research and the application of new typemotor.The main fruits of this thesis are as follows:1. Analysis of the principle of new motor. A three-phase12/10-pole AFHESM is the researchobject, and the flux adjustment principle and the flux-switching principle are analyzed. Thenature of the sinusoidal waveform of the flux is explained, according to the consistency and thecomplementary between the two sets of the coils belong to one phase.2. The access to the initial design scheme.3D models of AFHESM are established by finiteelement analysis (FEA). The electromagnetic properties are deduced, including permanentmagnet flux linkage, induction electromotive force, cogging torque, etc.3. Optimization design and analysis. The shape and size of permanent magnet (PM), therotor-teeth and the stator-slot are studied, according to two indices of the induced electromotiveforce (EMF) and the cogging torque. The main design parameters and the range of the mainstructure size are obtained by a large number of repeated calculation, such as the rectangularstator-slot. It provides a theoretical basis for the further optimization.4. Manufacture and test the new prototype. According to the optimal analysis and simulationresults, a prototype is trial-manufactured. The experiment platform is built and the comprehensivegenerating experiments are developed, including the three-phase no-load EMF, the EMF atdifferent speed and the ability of the magnetic adjustment, etc. The comprehensive performancecharacteristics of the prototype are obtained, and some useful results are gained, which verifiesthe correctness of the proposed optimization analysis theory.