Modelling and Virtual Testing of a Wound Rotor Synchronous Machine for Electrical Vehicles Propulsion System

This paper presents a dq flux-linkage modeling approach and the virtual testing of a wound rotor synchronous machine that assures the propulsion of a battery electrical vehicle. The motor model, organised using Energetic Macroscopic Representation, is constructed based on a series of electromagnetic finite-element analysis defined by various armature and rotor excitation currents. The performances of the dq-model, together with its control and electronic units, are evaluated through virtual tests. Furthermore, the model accuracy is validated by comparing the simulation results with the experimental data obtained from different tests performed on a Renault ZOE Q90 car. Two test scenarios, an urban test and a highway one, are chosen in order to evaluate the precision and the reliability of the developed model under normal and maximum electrical vehicle speed conditions. The combination of dq-modeling and virtual testing represents a way to rapidly develop and validate high performance system models and accelerate time to market.