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:
Sep. 05, 2023
Filed:
Oct. 31, 2019
China Electric Power Research Institute, Beijing, CN;
State Grid Corporation of China, Beijing, CN;
Zexin Zhou, Beijing, CN;
Tianhua Li, Beijing, CN;
Hong Cao, Beijing, CN;
Yarong Guo, Beijing, CN;
Xingguo Wang, Beijing, CN;
Dingxiang Du, Beijing, CN;
Delin Wang, Beijing, CN;
Pengfei Lv, Beijing, CN;
Zhi Zhang, Beijing, CN;
CHINA ELECTRIC POWER RESEARCH INSTITUTE, Beijing, CN;
STATE GRID CORPORATION OF CHINA, Beijing, CN;
Abstract
A method and device for timing in time-varying distance protection based on multiple lines of a tower. The method includes: collecting an instantaneous current value at a time-varying distance protection installation location in the multiple lines of the tower, and acquiring preset parameters; calculating, according to the preset parameters and a multi-line ranging model, a multi-line ranging result; calculating, according to the preset parameters, the multi-line ranging result, and an adaptive calculation model, time of a section-II distance protection action and final time of a section-III distance protection action; and determining, according to the instantaneous current value, the preset parameters, and a cross-line failure auxiliary criterion model, final time of the section-II distance protection action.