Analysis Of Saturation And End-Effects In Variable Speed Solid Secondary Couplings

In this paper Maxwell´s field theory has been successfully applied to analyze the behaviour of dc excited electromagnetic couplings having solid iron in the secondary. New approaches have been developed to consider the saturation effect by the linear permeability ¿e, and the finite length effect by the end-effect factor Ke. A smooth variable speed drive that is quite competitive in many ways with the existing ones is also suggested.