Abstract
The article presents an original method for numerical determination of the value of magnetic co-energy of a transverse construction motor. The aim of the developed method is initial determination of the co-energy value for the analyzed structure in the function of rotor rotation angle. The main requirement set to the presented method was the lowest possible complexity of the process computation, lack of the necessity to apply costly dedicated software, as well as creating construction 3D models. These requirements were met by applying specific cross-section/development of the analyzed machine geometry, as well as application of specific boundary conditions, which enabled reduction of the analyzed problem to solving a Poisson equation in 2D. The calculations were done with the Finite Element Method.
Highlights
Machines of transverse structure are gaining increasing popularity in various applications.The interests of science and industry focus, among others, on applications of this type of solutions in generator operation with wind turbines, in which they comprise an interesting alternative to solutions with Axial Flux Permanent Magnet (AFPM) machines [1]
The method of transforming Transverse Flux Machine (TFM) geometry into 2D system, with handle the influence of magnetic field that comes from stator winding phase coil current, have been proposed
Development of modern methods of TFM machine control using the results of magnetic co-energy calculations
Summary
Machines of transverse structure are gaining increasing popularity in various applications. The interests of science and industry focus, among others, on applications of this type of solutions in generator operation with wind turbines, in which they comprise an interesting alternative to solutions with Axial Flux Permanent Magnet (AFPM) machines [1]. In the work of [2] analytic methods of determining generator electric properties were discussed, their accuracy was verified by means of measurement experiments of a machine prototype, in a smaller scale. The works of [3,4] present a different approach, in which in order to determine electric parameters of the studied machine the static analysis and dynamic three-dimensional Finite Element Method (FEM 3D) analysis are applied. In the aforementioned works the influence of several selected parameters and machine structure details on the values of leakage stream and the shape of the back electromotive force (EMF)
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