Medium and high voltage energy storage inverter

What is the best energy storage inverter in 2021?

The winner of the 2021 'All Quality Matters' energy storage inverter award is the SolaX X3-Hybrid G4 inverter. This is the fourth generation of three-phase hybrid inverter developed by SolaX Power, which has been recognized for its outstanding quality since its release.

Can a 10kV inverter feed into a medium-voltage grid?

Researchers at the Fraunhofer Institute for Solar Energy Systems ISE developed and successfully put into operation an inverter for direct feed-in to the 10kV medium-voltage grid. The inverter contains high-voltage SiC transistors which allow for coupling to the medium voltage grid without requiring an additional transformer.

What is a 3 phase inverter?

The inverter contains high-voltage SiC transistors which allow for coupling to the medium voltage grid without requiring an additional transformer. The three-phase inverter can be used to regulate reactive power as well as to actively filter undesirable harmonics in the electricity grid.

Why do inverters work with STATCOMs?

Due to the higher frequency, the inverter can act as an active filter to compensate for harmonics in the medium-voltage grid. With STATCOMS this is only possible to limited extent because of the low-pass effect of the 50Hz transformer.

Which power converter is used for grid stabilization?

For grid stabilization, power converters, so-called STATCOMs (Static Synchronous Compensators), are used to supply continuous inductive or capacitive reactive power. The coupling to the medium voltage grid is affected by means of a 50Hz transformer.

How does a 50Hz transformer affect a medium voltage grid?

The coupling to the medium voltage grid is affected by means of a 50Hz transformer. The newly developed inverter from Fraunhofer ISE can now feed directly into the medium voltage grid without a transformer, due to the use of high voltage transistors made of SiC. First component prototypes with a blocking voltage of 15kV were used for this purpose.