This paper aims to propose the use of isogeometric analysis (IGA) for the simulation of electrical machines to represent their geometries exactly and obtain numerical solutions of high accuracy and regularity.
IGA makes use of non-uniform rational b-splines to parametrise the domain and approximate the solution spaces. Dealing with the different stator and rotor topologies, the computational domain is split into two non-overlapping parts on which Maxwell’s equations are solved independently and are interconnected by a classical Schwarz domain decomposition scheme. The results are compared with the conventional polynomial finite element method (FEM).
The new methodology is reliable and efficient. The obtained solutions of the fields are in good agreement with the ones obtained by the FEM approach. IGA offers a better accuracy than FEM.
The application of IGA combined with domain decomposition to the model of an electric machine is a new and original contribution.
This work is supported by the German BMBF in the context of the SIMUROM and PASIROM projects (grants 05M2013RDA and 05M2018RDA), by the DFG (grant number. SCHO1562/3-1) and by the Excellence Initiative of the German Federal and State Governments and the Graduate School of CE at TU Darmstadt.
Bhat, P., Bontinck, Z., Corno, J., Schöps, S. and DeGersem, H. (2018), "Modelling of a permanent magnet synchronous machine using isogeometric analysis", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 37 No. 5, pp. 1805-1814. https://doi.org/10.1108/COMPEL-01-2018-0014Download as .RIS
Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited