PROJECT TITLE :
Analytical Determination of Slot Leakage Field and Inductances of Electric Machines With Double-Layer Windings and Semiclosed Slots
Slot leakage field and inductance computation are, normally, nontrivial tasks within the analysis of electrical machines equipped with semiclosed slots, even beneath the hypothesis of neglecting magnetic saturation. This paper proposes an analytical method to evaluate the slot leakage field and inductances in twin-layer distributed winding machines, extending the results of a previous work where the single-layer winding design was addressed. An on the spot solution to Poisson's differential equation within the slot domain is found by suitably defining boundary conditions within the slot opening space. Boundary conditions are defined exploiting the analytical form taken by the magnetic field within the neighborhood of ferromagnetic corner-formed regions. The presented approach is successfully validated against finite part simulations.
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