Eddy Current Magnetic Field Analysis of Disk Synchronous Magnetic Coupler

Abstract

Aiming at the problem that the eddy current loss generated by the metal isolation sleeve of the disc type synchronous magnetic coupler affects its transmission performance, this paper firstly deduces the equation of eddy current loss from the theory, then analyzes the influence of the difference in rotation angles and rotation speed on the eddy current loss, and also studies the influence of the induced magnetic field generated by the eddy current on the air gap magnetic field. Through simulation, it is concluded that: the smaller the difference in turning angle or the larger the rotational speed produces the greater eddy current loss; the influence of the induced magnetic field on the air gap magnetic field is different from different turning angles differences. The conclusion is of guiding significance to reduce the eddy current loss and improve the transmission performance of the magnetic coupler.