Today’s wide variety of powertrain topologies create challenges in the testing and calibration of traction inverters. Moreover, the power electronics have to achieve high efficiency and power density at stable operation. Also, new trends like higher switching frequencies, higher DC link voltages and high voltage gradients, bring challenges. Therefore, new modulation strategies have to be used.

Key topics and takeaways:

• Basics of inverter power measurement and the importance of validating inverter design and selecting the right parameters
• Overview of the inverter test cases and the role of power measurement
• A closer look at the importance of the transformation to d, q coordinate systems for inverter current control
• Application examples