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Impact of Soft Magnetic Ageing on the Performance of Aerospace Propulsion Machines University of Nottingham
- Format:
- Book
- Conference/Event
- Author/Creator:
- Ramanathan Mathavan Jeyabalan, Ram Kumar, author.
- Conference Name:
- Aerospace Technology Conference & Exposition (2022-03-15 : Pasadena, California, United States)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2022
- Summary:
- Electric machines in aerospace applications are subjected to extremely high operating temperatures. This increases coercivity or decreases saturation flux density of the electrical steel resulting in increased core loss. The need for high power density and increased operating speed favours the use of thin gauge Silicon Steel (Si-Fe) and Cobalt Iron (Co-Fe) laminations for aerospace applications. Therefore, the variation in iron loss is studied for three grades of Si-Fe laminations by subjecting them to controlled ageing in laboratory. The analysis is also provided over a range of flux density and frequency to generalize the phenomenon over the operating domain. The results of ageing the laminations are in turn used to predict the degradation in performance of a 1.15 MW, 16-pole 48-slot propulsion machine for aerospace application. The degradation is estimated in terms of variation in iron loss. Iron loss is found to vary over a wide range (-11% to 5%) for thick gauge 0.35 mm SiFe lamination compared to a narrow range (0.8% to 2.7%) for thin gauge 0.1 mm lamination
- Notes:
- Vendor supplied data
- Publisher Number:
- 2022-01-0050
- Access Restriction:
- Restricted for use by site license
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