ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,528, issued on Dec. 16, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).
"Power conversion device" was invented by Akito Nakayama (Tokyo) and Takuya Kajiyama (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power converter includes at least one arm for each phase, and each arm is formed by connecting, in series, a plurality of converter cells each having a plurality of semiconductor switching elements and a DC capacitor. A control device generates, for each arm, an arm voltage command for the plurality of convener cells, to control the power converter. The control device includes a voltage information calculation unit for calculating a volt...