US 12,095,356 B2
Fault transient features optimization method and system of AC/DC system based on dissipated energy
Jing Ma, Beijing (CN); Yufeng Zhao, Beijing (CN); Jialun Li, Beijing (CN); Zhencun Nie, Beijing (CN); Tong Jiang, Beijing (CN); Zengping Wang, Beijing (CN); and Qixun Yang, Beijing (CN)
Assigned to North China Electric Power University, Beijing (CN)
Filed by NORTH CHINA ELECTRIC POWER UNIVERSITY, Beijing (CN)
Filed on Aug. 23, 2022, as Appl. No. 17/893,781.
Claims priority of application No. 202210190459.7 (CN), filed on Feb. 28, 2022.
Prior Publication US 2023/0275504 A1, Aug. 31, 2023
Int. Cl. H02M 1/32 (2007.01); G01R 31/40 (2020.01); H02M 7/06 (2006.01)
CPC H02M 1/32 (2013.01) [G01R 31/40 (2013.01); H02M 7/06 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A fault transient features optimization method of AC/DC system based on dissipated energy, wherein, the method comprising following steps:
obtaining an output current and outlet bus voltage of a generator during a whole process of fault recovery of the AC/DC system under current set of control parameters when adjusting the control parameters of a rectifier, and obtain multiple sets of control parameters and their corresponding output current and outlet bus voltage of the generator during the whole process of fault recovery of the AC/DC system;
for each set of control parameters, calculating cumulative value of dynamic dissipated energy of the generator under the set of control parameters based on the output current and outlet bus voltage of the generator during whole process of DC system fault recovery under the set of control parameters;
selecting the set of control parameters that minimizes the cumulative value of dynamic dissipated energy of the generator as optimal control parameters in the process of fault transient features optimization.