Patent · US Active

Method and system for a comprehensive analysis of low frequency oscillation

US8898027B2 · kind B2 · utility

1Cited by

1References

3Claims

0Family size

Assignee

State Grid Corporation of China · CN

Inventors

Yaozhong Xin · Beijing, CN
Fang Li · New Taipei, TW
Jingtao Wu · Beijing, CN
Hongzhu Tao · Beijing, CN
Jianfeng Yan · Beijing, CN
Gang Duan · Beijing, CN
Fang Tian · Beijing, CN
Yu Dong · Shanghai, CN
Wei Zhang · Eden Prairie, US

Key dates

Filing date	Sep 4, 2009
Grant date	Nov 25, 2014
Priority date	—
Expiry date	Mar 25, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH02J3/241
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method and a system for a comprehensive analysis of low frequency oscillation. The method includes: firstly, initiating a wide area measurement system WAMS (71) to perform real-time monitoring; transmitting real-time low frequency oscillation information to a dynamic early-warning system (72) periodically; then converting the low frequency oscillation information received by the dynamic early-warning system (72) into an input file for stability calculation with small disturbance, and performing related calculation; finally, transmitting the calculated result back to the wide area measurement system WAMS (71) and a human-machine system interface for output. The system includes: the wide area measurement system WAMS (71), the dynamic early-warning system (72), a system for stability calculation with small disturbance (73) and an output system (74).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.