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Transient electromagnetic forces in radial and axial directions induce critical mechanical stress on windings and transformers. In this paper, short-circuit electromagnetic forces that are exerted on transformer windings are investigated. A 3-D transformer model is considered to calculate the transient electromagnetic forces. The magnetic vector potential, magnetic flux density, and electromagnetic...
This paper present characteristic analysis of high-speed Interior Permanent Magnet Synchronous Motor (IPMSM). Single-layer buried permanent magnet type and multi-layer type are modeled and investigated. Finite element analysis method is used to obtain the magnetic flux distributions of IPMSM. Parameters of IPMSM such as d-q axis inductances and torque curve are calculated and compared.
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