| Abstract |
An air cooled medium voltage drive family called “SYMPHONY” based on IGBT modules and
floating capacitor topology is described. The harmonic content of both, input and output current is
very low, due to 18 pulse input and 4-level voltage output. Beside principal explanations to introduce
the solution, the clearly arranged design is described, leading to high reliability, because of a low
number of components and low cost of maintenance. A closer look is given to the key components
like “partial discharge free low inductance bus bars”, “gating power supply” and the “floating
capacitor module”. |
