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This paper discusses the arrangement of the flux barriers in the stator of the outer rotor type IPMSM. IPMSM usually has the flux barriers for preventing the short circuit of magnetic flux near the permanent magnet. However, the flux barriers are used in the stator to improve the efficiency in this study. A two-dimensional finite element method (2D-FEM) is introduced to analyze the various modified...
This paper describes the better shape design of the permanent magnet to improve the efficiency in the outer rotor type of IPMSM. Using the finite element method, characteristics of the modified motors are analyzed and compared with those of the basic motor. As a result, we have found the better shape design of the permanent magnet.
Line start permanent magnet motors (LSPMMs), which consist of a squirrel-cage rotor that contains a few permanent magnets, can be considered as being more efficient than high-efficiency induction motors. However, methods to improve the starting and running characteristics of LSPMMs have not been clarified in detail. In this paper, we propose the basic concepts of an analytical calculation method of...
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