Technical Paper
A numerical approach to electric motors control for vehicle dynamics simulation
2024-04-09
2024-01-2152
This paper presents a numerical methodology to generate lookup tables that provide d- and q-axis stator current references for electric motors control. The main novelty with respect to other literature references is the introduction of the iron power losses in the equivalent-circuit electric motor model implemented in the optimization algorithm. The lookup tables generation algorithm discretizes the motor operating map and, given proper constraints on maximum stator current and magnetic flux, solves a numerical optimization problem for each operating point to find the combination of d- and q- axis stator currents that minimizes the resulting stator current amplitude while generating the desired torque. This numerical interpretation of the motor control problem can be applied to both synchronous and induction motors and results in an algorithm that does not require information about the available DC voltage level.