Group 1 - The State Intellectual Property Office of China has granted a patent to China Electric Power Research Institute for a method and system for power control of new energy generation units based on DC fault, with the announcement number CN110571870B and application date of July 2019 [1] - China Electric Power Research Institute, established in 2001 and located in Beijing, focuses on research and experimental development, with a registered capital of 3.352 billion RMB. The company has invested in 26 enterprises, participated in 9,430 bidding projects, holds 74 trademark records, 5,000 patent records, and has 189 administrative licenses [1] - State Grid Corporation of China, founded in 2003 and also based in Beijing, is primarily engaged in electricity and heat production and supply, with a registered capital of approximately 130.45 billion RMB. The company has invested in 73 enterprises, participated in 160,009 bidding projects, holds 189 trademark records, 5,000 patent records, and has 47 administrative licenses [1] Group 2 - State Grid Hebei Electric Power Company, established in 1989 and located in Shijiazhuang, focuses on electricity and heat production and supply, with a registered capital of approximately 2.009 billion RMB. The company has invested in 104 enterprises, participated in 4,200 bidding projects, holds 5,000 patent records, and has 156 administrative licenses [2]