High-power modular inverter development for electric motor testing purposes

Abstract

Power electronics and their control algorithms are very important parts of electric vehicles. The whole system can operate reliably, efficiently and with good dynamics only if all elements of the vehicle are well coordinated. Before the different electric drivetrains can finally be applied, they should be tested under different circumstances on electric motor or drivetrain test benches. Otherwise it would be difficult to test them in-vehicle as they are already built-in. For such testing processes, a flexible test system is a good solution that can be easily modified at both hardware and software levels, especially for institutions like our research center where various types of electric motors from different manufacturers are dealt with. Their inverter systems are usually inaccessible without the help of experts.