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:
May. 19, 2015
Filed:
May. 20, 2014
State Grid Corporation of China, Beijing, CN;
Wuhan Central China Electric Power & Grid Technology Company, Ltd., Wuhan, Hubei, CN;
Dongjun Yang, Hubei, CN;
Jisheng Li, Hubei, CN;
Jianyong Ding, Hubei, CN;
Hanping Xu, Hubei, CN;
Chunjian Luo, Hubei, CN;
STATE GRID CORPORATION OF CHINA, Beijing, JP;
WUHAN CENTRAL CHINA ELECTRIC POWER & GRID TECHNOLOGY COMPANY, LTD., Wuhan, Hubei, CN;
Abstract
Disclosed is a method for determining a position of a forced power oscillation disturbance source in a regional interconnected power grid. According to the method, when forced power oscillation occurs in a regional power grid, an algebraic sum of energy flow directional factors in the regions of the regional interconnected power grid is calculated so as to online determine the position of the disturbance source in real-time. Compared with the conventional disturbance source positioning method based on an energy function, the disturbance source positioning method based on calculation of the energy flow directional factors provided by the invention can reduce the impact of a periodic disturbance component and an initial constant on the determination of an aperiodic component of branch potential energy, thus achieving higher accuracy. Moreover, the integration links are reduced and the calculation process is simplified, thus better meeting the requirements for real-time power grid calculation.