基于校园WAMS的日本东部50 Hz电力系统振荡特性分析

2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI:10.1109/APAP.2011.6180662

Qing Liu, D. Despa, Masayuki Watanabe, Y. Mitani

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引用次数: 0

摘要

在日本东部50赫兹的电力系统中，在八户和横滨之间安装了两个pmu(相量测量单元)。本文的主要目的是基于日本东部50 Hz校园wams的应用实践，对电力系统的小扰动角稳定性进行监测和估计。该方案主要针对单一主导区域间振荡模式，采用FFT滤波技术将目标单一振荡模式与其他模式分离。然后，来自PMU观测数据的特征值是研究大型电力系统区域间振荡的有力工具，因为它表明了整个系统的动态特性。最后，利用所获得的资料分析了东日本大地震前后相量的长期振荡特征和变化

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Analysis of oscillation characteristics for Japan Eastern 50 Hz power system based on Campus WAMS

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 ac-quired data

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2011 International Conference on Advanced Power System Automation and Protection

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