Patent ID: 6411005
Filing Date: 2002-06-25
Classification: H02K

Abstract:
A stator for an induction machine, comprising:a cylindrical core having a longitudinal axis, inner and outer peripheries, first and second end faces, a plurality of inner slots extending longitudinally along said inner periphery between said first and second end faces, and a plurality of outer slots extending longitudinally along said inner periphery between said first and second end faces, each of said outer slots being associated with several adjacent inner slots; a plurality of toroidal coils wound about said core and laid in said inner and outer slots, each of said toroidal coils occupying a single inner slot and being laid in said associated outer slot to thereby minimize distance said coil extends from said end faces; and a controller coupled to said stator, said controller having control logic operative to detect a first phase current of one said toroidal coil and calculate a second phase current of an adjacent toroidal coil.