Electrical motors are crucial components in our everyday life. This report investigates how electrical machines specifically the permanent magnet synchronous machine (PMSM) are affected by two different inverter topologies, specifically comparing a two level inverter and a T-type three level inverter. The two level and three level T-type inverters output currents that influence power losses in the electrical machine. The study involves modeling inverter systems using modulation techniques, a PMSM and integrating them into a system using a PI-Controller. Simulations are conducted to obtain the output that are supplied from the inverters. To analyze the losses caused by currents with switching harmonics, a finite elementbased simulation is used. The output currents from the initial simulation are used as inputs for the finite element simulation to compare the losses between the two inverter operations. The results indicate that the two level inverter currents result in higher losses compared to the three level T-type inverter currents. Additionally, the simulated inverter system currents are compared with real measured currents to validate the model. The findings show that the simulated currents closely follow the measured currents, with some variations depending on the amplitude of the input current.
Villiam Petermann (Wed,) studied this question.