Real-Time Emulation of Induction Machines for Hardware in the Loop Applications

A FPGA-based dynamic model of three-phase induction machines is presented in this work. The model includes the effects of temperature in the stator and rotor resistances and magnetic saturation in the magnetizing and leakage inductances, according to the stator and rotor currents. Moreover, iron core losses have been properly modeled. The proposed implementation ensures high accuracy of the simulations in a wide range of operating conditions, keeping a reasonable computational burden. Experimental tests confirm the matching between the results provided by the hardware in the loop system and those coming from the experimental rig, the last including an electronic control unit used in automotive systems.