grid-connected DC/AC inverter / single-phase / modified sine wave / AC

Today's power converters need to ensure reliable wind turbine operation even when grids are exposed to strongly fluctuating frequencies or voltages. Due to stricter international guidelines for grid feed-in and grid compatibility (grid codes), wind turbines may no longer disconnect from the grid in the case of a grid breakdown. This means that primarily old systems and specific generator concepts are technically overwhelmed. Therefore the PowerTech Reactive Current Converter offers different product solutions for the grid stability of wind turbines.

The PowerTech Reactive Current Converter will keep the system online during brief balanced grid faults of up to 15% or during unbalanced grid faults down to 0% of the grid voltage. During an unbalanced short circuit of two phases in the medium voltage range, Green Line 1000 uses the remaining phase to supply reactive current.

The PowerTech Reactive Current Converter is available in two performance classes: for large wind turbines up to 2500 A and for smaller turbines up to 850A. Since it operates for brief periods of time only, it requires no water or forced air cooling. Natural convection fully suffices to cool the system.