METHOD AND APPARATUS FOR DISCRIMINATING CONSISTENCY OF RECEIVING AND SENDING DELAYS OF DIFFERENTIAL CHANNEL, AND ELECTRONIC DEVICE AND DIFFERENTIAL PROTECTION COMMUNICATION SYSTEM

WIPO Patent Application WO/2023/087943

A1

Disclosed in the present application are a method and apparatus for discriminating the consistency of receiving and sending delays of a differential channel, and an electronic device and a differential protection communication system, which are used for a host side or a slave side of a differential channel. The method comprises: calculating a channel delay of a differential channel; adjusting sampling data on two sides of the differential channel to a synchronous state; calculating, in real time, a variation amount of the channel delay, and when the variation amount of the channel delay is greater than a first threshold value, starting to discriminate the consistency of receiving and sending delays of the differential channel, so as to obtain a discrimination result of the consistency of the receiving and sending delays of the channel; and according to the discrimination result of the consistency of the receiving and sending delays of the channel, determining whether to lock differential protection.

ZHANG HONGXI (CN)
ZHAO QINGCHUN (CN)
XU XIAOCHUN (CN)
XU HAIYANG (CN)
XIE HUA (CN)
DAI GUANGWU (CN)
LU JINFENG (CN)
BU LIZHI (CN)
LI BEN (CN)

PCT/CN2022/122507

May 25, 2023

September 29, 2022

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NR ELECTRIC CO LTD (CN)
NR ENGINEERING CO LTD (CN)

H02H7/26; H02H3/06

CN114050559A	2022-02-15
CN112803361A	2021-05-14
CN101296062A	2008-10-29
CN101877676A	2010-11-03
CN105467264A	2016-04-06
US20170059636A1	2017-03-02

NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD. (CN)

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