Title :
Analysis of oscillation characteristics for Japan Eastern 50 Hz power system based on Campus WAMS
Author :
Liu Qing ; Despa, Dikpride ; Watanabe, Masayuki ; Mitani, Yasunori
Author_Institution :
Kyushu Inst. of Technol., Kitakyushu, Japan
Abstract :
In Japan Eastern 50 Hz the power system, there are two PMUs (Phasor Measurement Unit) are installed between Hachinohe and Yokohama. The main objective of this paper is to present a monitoring and estimation of small disturbance angle stability of power system based on application practices of the CampusWAMS in Japan eastern 50 Hz. This scheme focuses on single dominant inter-area oscillation mode and the FFT filter technique is employed to separate aimed single oscillation mode from other modes. Then, the eigenvalue coming from the observation PMU data is a powerful tool to investigate inter-area oscillations in large power systems as it indicates the dynamic properties of the whole system. Finally, long term oscillated features and variations of phasor before and after the Great Eastern Japan earthquake are analyzed using the acquired data.
Keywords :
eigenvalues and eigenfunctions; fast Fourier transforms; filtering theory; phasor measurement; power system stability; Campus WAMS; FFT filter technique; Great Eastern Japan earthquake; Japan Eastern power system; eigenvalue; frequency 50 Hz; observation PMU data; oscillation characteristics; phasor measurement unit; power system disturbance angle stability; single dominant interarea oscillation mode; Earthquakes; Equations; Estimation; Mathematical model; Measurement units; Monitoring; Phasor measurement units; asymmetrical flow transferring; fault dynamic process; flow transferring identification; local information;
Conference_Titel :
Advanced Power System Automation and Protection (APAP), 2011 International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-9622-8
DOI :
10.1109/APAP.2011.6180662
