ALEXANDRIA, Va., April 15 -- United States Patent no. 12,603,505, issued on April 14, was assigned to Kunming University of Science and Technology (Kunming, China).

"Dynamic frequency coordination control method for asynchronous regional power grids during wet and dry seasons" was invented by Hongchun Shu (Kunming, China), Zongxue Shao (Kunming, China), Yutao Tang (Kunming, China), Wei Zhao (Kunming, China), Shunguang Lei (Kunming, China), Guangxue Wang (Kunming, China), Yinan Hu (Kunming, China) and Botao Shi (Kunming, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dynamic frequency coordination control method for asynchronous regional power grids during wet and dry seasons is provided. By using fre...