ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,738, issued on June 17, was assigned to Mitsubishi Electric Corp. (Tokyo).
"Power conversion device and estimation device" was invented by Masahiro Hario (Tokyo) and Noriyuki Imada (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power conversion device included in a self-excited DC power transmission system connected to an AC system includes a self-excited converter and a control device. The control device includes: a storage to store first vibration information and a first control parameter of the self-excited converter in association with each other for each of a plurality of pieces of first vibration information, a vibration detector to d...