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. 14, 2023
Filed:
Aug. 11, 2021
State Grid Hubei Electric Power Research Institute, Hubei, CN;
State Grid Hubei Wuhan Electric Power Supply Company, Hubei, CN;
Wuhan Power Supply Design Institute Co., Ltd., Hubei, CN;
State Grid Hubei Electric Power Co., Ltd., Hubei, CN;
China Railway Siyuan Survey and Design Group Co., Ltd., Hubei, CN;
Wuhan Xindian Electric Co., Ltd., Hubei, CN;
Shenzhen Metro Construction Group Co., Ltd., Guangdong, CN;
Zeyang Tang, Hubei, CN;
Ling Ruan, Hubei, CN;
Yong Yao, Hubei, CN;
Jian Wang, Hubei, CN;
Shuang Chen, Hubei, CN;
Chao Cai, Hubei, CN;
Zhi Tian, Hubei, CN;
Lingxiao Gao, Hubei, CN;
Xiaoxun Deng, Hubei, CN;
Zhichun Yang, Hubei, CN;
Ling Qiu, Hubei, CN;
Zhou Ge, Guangdong, CN;
State Grid Hubei Electric Power Research Institute, Wuhan, CN;
State Grid Hubei Wuhan Electric Power Supply Company, Wuhan, CN;
Wuhan Power Supply Design Institute Co., Ltd., Wuhan, CN;
State Grid Hubei Electric Power Co., Ltd., Wuhan, CN;
China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan, CN;
Wuhan Xindian Electric Co., Ltd., Wuhan, CN;
Shenzhen Metro Construction Group Co., Ltd., Shenzhen, CN;
Abstract
A method for analyzing a correlation between rail transit and direct current (DC) magnetic bias of a transformer includes the steps of, A: obtaining a current of a feed cable and a DC magnetic bias current: measuring the feed cable current in rail transit and the DC magnetic bias current of a transformer in a power grid within a certain period by a monitoring apparatus; B: calculating a characteristic quantity of the feed current within the measurement period based on the obtained current of the feed cable; C: calculating a characteristic quantity of the DC magnetic bias current within the measurement period based on the DC magnetic bias current; and D: calculating a support degree and a confidence coefficient based on the calculated characteristic quantity of the feed current and the calculated characteristic quantity of the DC magnetic bias current, and generating a correlation rule.