A high-bandwidth high-power inverter

This paper presents experimental results for the design of a high power voltage fed inverter and discusses the benefits of two technologies used in its implementation. The inverter design presented here finds application in procedures requiring accurate control of large fast-varying currents with minimal error. In the context of a 1 MVA voltage fed inverter, we experimentally demonstrate the advantages of combining high performance power modules with advanced cooling technologies. The power devices used combine conventional Silicon IGBT's with Silicon Carbide Schottky antiparallel diodes dramatically reducing switching losses in the system.