ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,768,900, issued on Oct. 20, was assigned to FUJI ELECTRIC Co. LTD. (Kawasaki, Japan).

"Power converter and islanding operation detection method" was invented by Takashi Hayashi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power converter includes an inverter including an inverter circuit configured to convert a DC power into an AC power, and a reactor provided between the inverter circuit and an interconnection point, and a control device configured to control the inverter as a voltage controlled inverter. The inverter outputs an output voltage superimposed with a harmonic to the interconnection point. The control device generates a first sig...