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:
Aug. 30, 2016
Filed:
Dec. 05, 2012
Boe Technology Group Co., Ltd., Beijing, CN;
Beijing Boe Energy Technology Co., Ltd., Beijing, CN;
Ping Zheng, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
BEIJING BOE ENERGY TECHNOLOGY CO., LTD., Beijing, CN;
Abstract
The disclosure provides a three-phase AC phase sequence detecting method, including the steps of:) sampling instant values of three-phase AC electrical signal in real-time;) converting said instant values into electrical signal components in a two-phase still coordinate system in manner of coordinate conversion;) performing an arc tangent calculation on the electrical signal components to obtain a output signal value;) executing step) to step) one or more times, to obtain one or more output signal values;) the output signal values obtained from step) and the one or more output signal values obtained from step) composing a periodic function, if the periodic function is an increasing function within one minimum positive period, the three-phase AC phase sequence is determined to be positive sequence; otherwise, negative sequence. Three-phase AC phase detecting a detecting apparatus using the above detecting method is also provided.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile