[其它]Key technologies of large and medium power electromechanical energy conversion under extreme operati

Abstract-Based on the key technologies analyses of high-speed 7F(F.ut  
high-power-density electric machines and low-speed m_$I?F0  
high-torque-density electric machines, the common scientific b!X
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problem is extracted from the study of large and medium power 5; PXF  
electromechanical energy conversion devices under extreme 9I\3T6&tr  
operating conditions. The common scientific problem is how to 1 j12Qn@]  
make full use of physical properties of electromagnetic materials. = (gmd>N  
To solve above scientific problems, two major techniques, fine
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modeling on electromagnetic (EM) material properties and !Gp3/<"Wy$  
precise design of electric machines, are proposed and thoroughly x"8ey|
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studied. The research fields range from the effect of multi-factors, T#n1@FgC  
such as magnetic field, frequency, temperature and stress, on the 6rQpK&Jx  
EM materials to the analysis of EM field, temperature field, HS:}!
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mechanical property and multi-physics field coupled technology,
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which refers to many disciplines including electrical engineering, *sB-scD  
engineering thermal physics, engineering mechanics, computer +z=%89GJ  
technology, and so on. The extraction of scientific problems
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provides a theoretical guidance for research on .. 8R
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