On the Theory of Cylindrical Rotor A. C. Machines, Including Main Flux Saturation

In recently published papers concerned with variable saturation in cylindrical rotor a. c. machines, a cross-saturation effect was described, caused by variable saturation. Using the same approximations as applied in the cited papers we will show that Faraday´s law applied to cylindrical rotor a.c. machines including variable saturation excludes any transformer effect that links the mutually perpendicular axes of a general reference frame. In reality the induced component voltages in the directions of coordinate axes are well defined by transformer and rotational effects in agreement to Faraday´s law, showing that the coordinate axes of the general coordinate system used, are magnetically independent.