Title :
Calculation of the rotational power loss in electrical steel laminations from measured H&oarr; and B&oarr;
Author :
Atallah, K. ; Howe, D.
Author_Institution :
Dept. of Electron. & Electr. Eng., Sheffield Univ., UK
fDate :
11/1/1993 12:00:00 AM
Abstract :
An expression is derived for the calculation of the rotational power loss in electrical steel laminations, i.e., the iron loss associated with the torque caused by the angle of lag between H&oarr; and B&oarr;. It is shown that for a nonpurely rotating flux density, i.e., noncircular flux density loci, the instantaneous angular velocity of the flux density vector can vary substantially during a cycle, and must be accounted for in the calculation
Keywords :
ferromagnetic properties of substances; iron alloys; laminations; magnetic leakage; silicon alloys; Fe-Si; electrical steel laminations; flux density vector; instantaneous angular velocity; noncircular flux density loci; nonpurely rotating flux density; rotational power loss; torque; Electric variables measurement; Equations; Lamination; Loss measurement; Magnetic field measurement; Magnetic flux; Magnetic losses; Power measurement; Rotation measurement; Steel;
Journal_Title :
Magnetics, IEEE Transactions on
