The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 2020
Filed:
Dec. 27, 2018
Taizhou Power Supply Company of State Grid Zhejiang Electric Power, Zhejiang, CN;
State Grid Corporation of China, Beijing, CN;
Ping Zhao, Zhejiang, CN;
Yiping Shen, Zhejiang, CN;
Yutao Qiu, Zhejiang, CN;
Hua Xu, Zhejiang, CN;
Hao Tan, Zhejiang, CN;
Rijun Wang, Zhejiang, CN;
Yuande Zheng, Zhejiang, CN;
Hao Li, Zhejiang, CN;
Zaibing Zhou, Zhejiang, CN;
Guode Ying, Zhejiang, CN;
Kang Wang, Zhejiang, CN;
Jian Wu, Zhejiang, CN;
Tao Zhu, Zhejiang, CN;
Ben Li, Zhejiang, CN;
Xiaochun Xu, Zhejiang, CN;
Qingchun Zhao, Zhejiang, CN;
Xiaotong Zhu, Zhejiang, CN;
Zhen Huang, Zhejiang, CN;
TAIZHOU POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG ELECTRIC POWER, Zhejiang, CN;
STATE GRID CORPORATION OF CHINA, Beijing, CN;
Abstract
Provided are a differential protection method and system, applied to a multi-terminal T-connection transmission line. The method includes: selecting two slaves without a connection and connecting the two slaves to construct a slave group; determining a target slave and an auxiliary slave in the slave group, where a first communication path is connected along a channel one, a channel two and a channel three, and a second communication path is connected along the channel three, the channel two and the channel one; transmitting, by the target slave, two frames of messages, and acquiring a delay difference between a transceiving delay of the first communication path and a transceiving delay of the second communication path, where a first frame of messages is transmitted to the target slave via the first communication path, a second frame of messages is transmitted to the target slave via the second communication path.