Vincotech has introduced a compact new three-level converter module in a standard Flow 1 housing. Designed for 1200V solar inverters, the flow3xMNPC 1 provides all the components for three-phase applications. Featuring mixed voltage neutral point clamped (MNPC) topology, its performance is remarkable with 98.7% efficiency in typical solar applications.
Packaged in Flow 1 housings measuring 82mm x 38 mm and 12mm or 17mm in height, the module supports three-phases in one module. The topology is based on a 1200V IGBT4 HS3 (high speed) in the half-bridge and 600V IGBT3 with low saturation voltage in the commutating path. This combination of a three-level inverter topology achieves around 98.7% efficiency in a typical 16kHz solar application.
One booster and a three-phase inverter combined are the solution of choice when space is limited. What’s more, the Flow 3 x MNPC 1 topology features a common collector configuration, so only five power supplies are needed for the gate driver rather than the seven for the common emitters configuration, says the company.
