US Patent Issued to HITACHI ENERGY on Sept. 1 for "Method for energizing a modular multilevel converter" (Swedish Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,726,112, issued on Sept. 1, was assigned to HITACHI ENERGY LTD (Zurich, Switzerland).

"Method for energizing a modular multilevel converter" was invented by Ying Jiang Hafner (Ludvika, Sweden), Jimmy Ohman (Ludvika, Sweden) and Andreas Vinnberg (Orsa, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a method for energizing a modular multilevel converter comprising converter valves that each have interconnected cells. Each cell comprises power electronic switches in a full-bridge arrangement, a chargeable element, and gate drive units, one gate drive unit for each power electronic switch. The method includes: provid...