Parametric Optimization of a Synchronous Electric Drive with Improved Mass and Size Parameters

摘要

This article describes a possible new synchronous drive with an active concentrated winding and a stator with a number of phases other than three, control laws, and nonsinusoidal phase currents. This drive is characterized by improvements in weight and size achieved by taking into account the interaction of the electric motor and the inverter. Using the criterion of maximum effort to volume ratio of the electric machine, we have carried out parametric geometry optimization of the stator and rotor backs and windings slots. We have listed recommendations on selection of the number of phases and main circuit connections of the electric power converter that feeds the electric machine. We have proven that, by means of intelligent selection of geometrical parameters for an electrical-mechanical converter slot, it becomes possible to improve the mass and size parameters by approximately 30% relative to conventional solutions.