US Patent Issued to HUNAN UNIVERSITY OF TECHNOLOGY on Sept. 8 for "Reactive power sharing method for parallel inverters based on virtual impedance and dynamic droop coefficient" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,994, issued on Sept. 8, was assigned to HUNAN UNIVERSITY OF TECHNOLOGY (Zhuzhou, China).

"Reactive power sharing method for parallel inverters based on virtual impedance and dynamic droop coefficient" was invented by Shengqing Li (Zhuzhou, China) and Xin Li (Zhuzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a reactive power sharing method for parallel inverters based on virtual impedance and a dynamic droop coefficient. The virtual impedance is constructed through the parameter design of voltage and current double-closed loop controllers and a line impedance observer, to realize power decoupling. A dynamic...