A Simple 2-D Finite-Element Geometry for Analyzing Surface-Mounted Synchronous Machines With Skewed Rotor Magnets

作者：Urresty Julio Cesar; Riba Jordi Roger^*; Romeral Luis; Garcia Antonio

来源：IEEE Transactions on Magnetics, 2010, 46(11): 3948-3954.

DOI：10.1109/TMAG.2010.2062529

• Finite-element analysis
• permanent magnets
• permanent-magnet synchronous machines
• simulation
• skew

We present a new 2-D FEM-based system for analyzing permanent-magnet surface-mounted synchronous machines with skewed rotor magnets. The system is based on generating a geometric equivalent non-skewed permanent-magnet distribution that accounts for the skewed distribution of the practical rotor. An appealing feature of the proposed system is that it can be easily performed in any 2-D electromagnetic FEM package by performing a simple change in the geometry of the magnets. Attributes of the method presented here include simplicity, high accuracy, low computational burden, and high speed compared to 3-D and 2-D multislice FEM analysis. Experimental results with both healthy and faulty machines corroborate the effectiveness of the model proposed in this work.

• 出版日期2010-11