ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,413,157, issued on Sept. 9, was assigned to Siemens Energy Global GmbH & Co. KG (Munich).
"Controlling a multilevel power converter" was invented by Ilhom Gafur (Nuremberg, Germany) and Dominik Schuster (Diespeck, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for controlling a modular multilevel power converter which has at least one phase module branch with a series circuit of modules. Each of the modules has an energy storage device and a power semiconductor circuit with electronic switching elements. A duty cycle of the phase module branch is ascertained, wherein the duty cycle describes the ratio between the voltage which is being...