ALEXANDRIA, Va., April 9 -- United States Patent no. 12,272,954, issued on April 8, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).
"Power storage system and grid control system" was invented by Hiroki Ishihara (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power converter interchanges electric power between a power storage device and a power grid as the power storage device is charged and discharged. A control device controls active power inputted and outputted between the power grid and the power converter. The control device generates a command value indicating an amount of output of active power for increase in grid frequency or an amount of input of active power for lowering in grid frequenc...