Electric Power Research Institute of Guangdong Power Grid Co., Ltd.

Guangdong Power Grid Co., Ltd.

China Electric Power Research Institute of Guangdong Power Grid Co., Ltd.

Shenzhen Qibin Enterprises

Bing Zhao

Li Li

Lianhong Zhong

Meng Song

Yunsong Luo

Wenfeng Cheng

Zhengjun Shi

Yajun Xia

Xinhui Duan

Xiaoqing Xiao

Chao Sheng

Youxin Lin

Yongfa Zhao

Lei Wang

Tao Ma

Lei Hu

Jian Zhang

Qi Liu

Teng Zhang

Yong Huang

Ling Zhu

Bo Gong

Xiaomin Sun

Lingmeng Fan

Nannan Hu

Enze Zhou

Xiaoguang Zheng

Shaotao Dai

Zhangquan Rao

Xiang Tian

Bangzhu Wang

Ruizeng Wei

Shuqin Liu

Guoxiong Cheng

Ming-Jen Wang

Disclosed are a three-dimensional wildfire monitoring and control system and method for a power transmission corridor. The system includes: a wildfire-induced trip risk assessment module, for assessing, when a wildfire is detected in a power transmission corridor, a wildfire-induced trip risk in real time so as to determine whether to issue a wildfire warning; an online wildfire monitoring device layout planning module, for generating an online wildfire monitoring device layout plan for transmission lines based on the wildfire-induced trip risk, a blind spot of satellite monitoring and importance levels of the transmission lines; and a three-dimensional power transmission corridor wildfire monitoring and warning module, adopting multi-source satellites and drones, and realizing three-dimensional wildfire monitoring of the power transmission corridor by monitoring through online wildfire monitoring devices provided according to the layout plan, the multi-source satellites and the drones.

Three-dimensional wildfire monitoring and control method and system for power transmission corridor

A skin layer of a superconducting tape has a woven mesh structure and is disposed on a surface of a superconducting tape. The skin layer of a superconducting tape solves the problem where a vapor layer generated when a superconductor is in a normal resistive state greatly reduces the efficiency of a heat exchange between the superconductor and liquid nitrogen. Further provided are the superconducting tape and a superconducting coil.

Skin layer of superconducting tape, superconducting tape, and superconducting coil

Provided is a superconducting coil having a spiral structure for a current limiter. The coil includes: a first superconducting tape, a second superconducting tape, and an insulating isolation layer, where the first superconducting tape and the second superconducting tape have spiral structures, an end of the first superconducting tape at a spiral center is connected to an end of the second superconducting tape at the spiral center, the instating isolation laser is filled between the first superconducting tape and the second superconducting tape, and a spacing between the first superconducting tape and the second superconducting tape gradually increases from the spiral center to an outer spiral periphery.

Superconducting coil having spiral structure for current limiter

Provided is a superconducting tape testing device, including lead contacts and a support plate. Each lead contact a conductive contact and a magnet; the magnet is provided with a through hole through which the conductive contact passes, the support plate comprises a plate and a magnetic conductive member; and the magnetic conductive member is fixed on the surface of the plate body.

Superconducting tape testing device

Provided is a superconducting fault current limiter having a composite insulating structure. The superconducting fault current limiter includes: a superconducting current limiting unit, an inner composite insulating cylinder, an outer composite insulating cylinder and a low-temperature container. The outer composite insulating cylinder is sleeved inside the low-temperature container; the inner composite insulating cylinder is sleeved inside the outer composite insulating cylinder; the superconducting current limiting unit is sleeved inside the inner composite insulating cylinder. The superconducting current limiting unit and the inner composite insulating cylinder are securely connected through a first support, and the low-temperature container and the outer composite insulating cylinder are securely connected through a second support.

Superconducting current limiter having composite insulation structure

Provided are a method and apparatus for calculating fault resistance and a current-limiting current of a superconducting fault current limiter. The method includes: calculating a first short-circuit fault current I(t) of a power grid short-circuit fault transient circuit; calling an external characteristic model U(I,t), and calculating resistance R(t) of a superconducting fault current limiter under the first short-circuit fault current I(t); adding the resistance R(t) of the superconducting fault current limiter into the power grid short-circuit fault transient circuit, and calculating a second short-circuit fault current I(t), where m=n+1; and determining whether an error between the second short-circuit fault current I(t) and the first short-circuit fault current I(t) is smaller than a preset threshold value, if yes, determining the fault resistance and the current-limiting current of the superconducting fault current limiter to be R(t) and I(t) respectively; otherwise, I(t)=I(t), returning for iteration.

Annular bearer network and service bearing implementation method therefor

Growing community of inventors

Guangdong, China

Bing Zhao