Research on calculation relation between stator slot leakage inductance and windings distributing for dual stator-winding machines

Two sets of winding share in the same slot and mutual leakage flux coupling exist for dual stator-winding machines. Calculating of slot leakage inductance is related with pitch and angle between two sets winding and distributing in slot. The existing calculating formulae can not be used directly and need to further research. In this paper, the analytical calculations of slot leakage inductance of dual stator-winding machine with different winding distributing structure are presented systematically; the relevant formulas of slot self-leakage inductance, mutual leakage inductance and different pitch for two sets stator-winding with the same turns are derived.