open access

https://hdl.handle.net/2115/61519

Fast Finite-Element Analysis of Motors Using Block Model Order Reduction

英語

proper orthogonal decomposition (POD)

2016-03

IEEE (Institute of Electrical and Electronics Engineers)

IEEE transactions on magnetics

52(3)

7207004

This paper proposes a model order reduction (MOR) based on the proper orthogonal decomposition (POD) to perform a fast analysis of motors. When a POD-based MOR is applied to the motor analysis, the number of basis vectors has to be increased to express the changes in the magnetic fields due to a rotational movement. Its computational efficiency is, thus, greatly deteriorated. To overcome this difficulty, the block-MOR is first applied to a motor analysis. In this method, a parameter space is subdivided into several blocks, which correspond to angular ranges in the motor analysis, in each of which the basis vectors are constructed from snapshotted fields. The computational time of the block-MOR is shown to be shorter than that of the conventional MOR, while the accuracy of both the methods is almost identical.

学術雑誌論文

Accepted Manuscript

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