Abstract: A live detection system, a thermal infrared (IR) imager and a method for power grid equipment are provided. The system includes an environmental parameter module for acquiring environmental temperature, humidity and wind speed data; a ranging module for measuring a linear distance to the power grid equipment; an equipment type recognition module for acquiring an image of the power grid equipment, and recognizing a type of the power grid equipment; an equipment material determination module for determining a material type of the power grid equipment; an emissivity setting module for setting an emissivity; an temperature measurement module for obtaining a temperature of the power grid equipment by focusing on positions of the power grid equipment which need temperature measurement; and a report generation module for selecting a corresponding diagnostic model, displaying a temperature measurement position and a temperature value, drawing a conclusion, and generating a report.
Type:
Grant
Filed:
December 3, 2020
Date of Patent:
April 9, 2024
Assignees:
State Grid Shandong Electric Power Research Institute, State Grid Corporation of China
Inventors:
Rong Liu, Hui Liu, Qinghe Shen, Jinxia Yao, Haiyan Yuan, Bo Yang, Xiaobin Sun, Chao Gu, Ran Jia, Yang Zhang, Chao Zhou, Chuanbin Liu
Abstract: A hierarchical health index evaluation method for an intelligent substation includes: 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.
Type:
Grant
Filed:
December 29, 2021
Date of Patent:
April 9, 2024
Assignees:
State Grid Shandong Electric Power Research Institute, State Grid Corporation of China
Inventors:
Wenting Wang, Zheng Xu, Xin Liu, Yujie Geng, Qigui Nie, Lin Lin, Jing Liu, Guodong Lv, Yang Zhao, Tiancheng Ren, Xiaohong Zhao
Abstract: A Demand Response (DR) physical potential evaluation method for a feeder line is provided, which includes that: a load curve of a part to be identified in a load curve of a feeder line to be evaluated is acquired; a load database is created on the basis of a historical load curve of loads of predefined types; load types and total number of the loads to be identified are determined on the basis of the load curve of the part to be identified and the load database; a physical potential of the loads of each of the types is acquired according to the load types of the loads to be identified; and an overall aggregated physical potential of the loads to be identified is obtained according to the physical potential of the loads of each of the types and a number of the loads of each of the types.
Type:
Grant
Filed:
June 13, 2017
Date of Patent:
October 27, 2020
Assignees:
CHINA ELECTRIC POWER RESEARCH INSTITUTE COMPANY LIMITED, STATE GRID CORPORATION OF CHINA, STATE GRID SHANDONG ELECTRIC POWER RESEARCH INSTITUTE
Inventors:
Ke Wang, Taiyou Yong, Jianguo Yao, Shengchun Yang, Yijun Yu, Yaping Li, Shuhai Feng, Jiantao Liu, Dan Zeng, Jing Zhou, Xiaorui Guo, Wenbo Mao, Gang Wang