An Improved Low Frequency Oscillation Disturbance Source Localization Method in Control Devices of Generator. (May 2019)

• Record Type: Journal Article
• Authors: Guo, Siyuan; Zhang, Shoushou; Zhao, Yongsheng; Li, Gang; Song, Junying
• Is Part Of: IOP conference series. Volume 281(2019)
• Publication Date: 2019-05
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/281/1/012031
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: In this paper, an improved oscillation disturbance source localization method in control devices of generator is investigated. Using the dominant component of the electrical signals by the fast Fourier transform (FFT), the oscillation energy for governor system and excitation system is obtained separately. Then, based on the direction of the non-periodic component of the oscillation energy for the two systems, the control device level locating of the oscillation disturbance source is realized. Taking the forced power oscillation accident caused by too strong primary frequency modulation as an example, the oscillation energy based on FFT for the two systems show that the proposed method can locate the disturbance source accurately.