US 11,954,210 B2
Hierarchical health index evaluation method and apparatus for intelligent substation
Wenting Wang, Shandong (CN); Zheng Xu, Shandong (CN); Xin Liu, Shandong (CN); Yujie Geng, Shandong (CN); Qigui Nie, Shandong (CN); Lin Lin, Shandong (CN); Jing Liu, Shandong (CN); Guodong Lv, Shandong (CN); Yang Zhao, Shandong (CN); Tiancheng Ren, Shandong (CN); and Xiaohong Zhao, Shandong (CN)
Assigned to State Grid Shandong Electric Power Research Institute, Jinan (CN); and State Grid Corporation of China, Beijing (CN)
Appl. No. 17/765,055
Filed by State Grid Shandong Electric Power Research Institute, Shandong (CN); and State Grid Corporation of China, Beijing (CN)
PCT Filed Dec. 29, 2021, PCT No. PCT/CN2021/142285
§ 371(c)(1), (2) Date Mar. 30, 2022,
PCT Pub. No. WO2022/242181, PCT Pub. Date Nov. 24, 2022.
Claims priority of application No. 202110532030.7 (CN), filed on May 17, 2021.
Prior Publication US 2024/0054226 A1, Feb. 15, 2024
Int. Cl. G06F 21/57 (2013.01); H04L 43/50 (2022.01)
CPC G06F 21/577 (2013.01) [H04L 43/50 (2013.01); G06F 2221/034 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A hierarchical health index evaluation method for an intelligent substation, comprising the following steps:
obtaining a basic health index of a device based on static information and dynamic information of the device;
obtaining a device correlation based on a communication connection relationship between the device and another device, and correcting the basic health index of the device based on the device correlation to obtain a health index of the device;
obtaining a layer-based health index of a layer based on a device health index and a device importance weight of the layer;
obtaining a whole-station health index of an intelligent substation based on a layer-based health index of each layer and a sum of device importance weights of each layer; and
regulating the intelligent substation based on a health index of each device in the intelligent substation, the layer-based health index of each layer, and the whole-station health index.