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| Magneto-Thermal Analysis of a High-Speed Claw Pole Motor Considering Rotational Core Loss |
| Huang Yunkai1, Hu Qiansheng1, Zhu Jianguo2 |
| 1. Southeast University Nanjing 210096 China 2. University of Technology Sydney NSW 2007 Australia |
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Abstract This paper presents a magneto-thermal model of a high-speed claw pole motor. Core loss is much greater than other losses and is the main source of heat due to the high operating frequency. Therefore it is of crucial importance to be able to calculate the core loss accurately . Three-dimensional finite element analysis is used for core loss calculation and temperature distribution because flux path in claw pole motor is pure three-dimension. The total core loss is computed by separating the alternating and rotational hysteresis, eddy current and anomalous losses in each element. The element's core loss is coupled into elements in thermal analysis by keeping the same mesh structure between magnetic and thermal analysis. Other losses such as air friction loss, rotor loss are included in the model due to high speed. This model is applied to a 2kW, 20kr/min three stack claw pole motor with soft magnetic composite core, and the results are compared and discussed finally.
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Received: 16 December 2008
Published: 04 March 2014
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2010, Vol. 25 
