Back to results
US 2024/0405557 A1Published application
Method for operating a battery converter, battery converter and system
AssigneeSMA Solar Technology AG
InventorAlexander Unru
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeSMA Solar Technology AG
InventorAlexander Unru
Estimating the term…
A method for operating a battery converter in a system includes controlling an exchange power of the battery converter using a battery, which is connected to the battery converter, depending on a voltage of the intermediate circuit in accordance with a converter characteristic curve, identifying a decrease in the intermediate circuit voltage below a rectifying value of the permissible AC voltage of the grid connected to the inverter, and when the decrease is identified, temporarily shifting the converter characteristic curve so that a maximum discharging power of the battery converter is reached at a value of the intermediate circuit voltage that is above or at the rectifying value. A battery converter and a system having such a battery converter are also described.
A method for operating a system comprising a battery converter and an inverter connected to a grid, wherein both the battery converter and the inverter are connected to a common DC bus, the method comprising:
A battery converter comprising an input for connecting to a battery and comprising a controller configured to provide an exchange power at an output configured to couple to a grid, the exchange power being provided based on a voltage applied at the output, the exchange power further being provided based on a converter characteristic curve, wherein the controller is further configured to identify a fault ride-through (FRT) event and if the FRT event is identified, to temporarily change the converter characteristic curve.
Dependencies are inferred from the claim text.