Some Methods to Evaluate Leakage Inductances of a Claw Pole Machine

To increase claw pole machine efficiency, we evaluate leakages in the magnetic circuit. These leakages are mainly due to end windings, air gap and slot leakages. Thus we obtain an equivalent circuit model. This model will be helpful to simulate the machine under load conditions and to make possible its optimization. The aim of this paper is then to present some methods of determination of leakage inductance, by computation and under test.