| Abstract |
Based on the already introduced 4-level IGBT inverter topology, applications for simulation test
benches with AFE, DC-BUS and multi motor drives are described. High speed compressor drives with
6000V AC motor voltage are based on the latest 6,5 kV IGBT technology.
Special attention is given on the low harmonic content of the 4-level PWM output current wave shape
for both, the Active Front End (AFE) and the motor inverters. Investigations on dv/dt and common
mode voltage for 4-level drive systems are described. |
