Versatile inverter platform targets renewable energy applications

Versatile inverter platform targets renewable energy applications

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By eeNews Europe

The modular topology, the wide selection of SKiiP IPM power ratings, choice of cooling system and the ability to connect the inverters in parallel allows for a wide range of user applications from around 450 kW to more than 3.0 MW.

The base inverter configuration comprises three half-bridge phase cells mechanically arranged in a vertical configuration. Each phase cell contains one SKiiP IPM, cooling system, polypropylene DC link capacitors, AC connections and snubbers.

The functional design of the Semistack for renewable energy allows assemblies to be easily connected together at the DC link with a low inductance bus coupling connected between stacks. The design makes it easy to configure four-quadrant applications and to parallel the inverters for higher power. Moreover, a brake chopper can be added by using another Semistack assembly. The flexibility enables the systems integrator to easily build a range of different power ratings using the same components.

Semistacks for renewable applications undergo rigorous qualification processes in accordance with a combination of international and in-house standards, including electrical, thermal, thermal cycling, environmental and shock and vibration.

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