The Online Identification of Dominated Inter-area Oscillations Interface Based on the Incremental Energy Function in Power System

The Open Electrical & Electronic Engineering Journal Pub Date : 2016-09-30 DOI:10.2174/1874129001610010088

Cheng Liu, G. Cai, Deyou Yang, Zhenglong Sun, Mingna Zhang

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引用次数: 1

Abstract

Abstract: The online identification of power system dominated inter-area oscillations interface based on the incremental energy function method is proposed in this paper. The dominant inter-area oscillations interface can be obtained by calculating branch oscillation potential energy, which is tie-line concentrated by oscillations energy. To get the oscillation energy caused by the different mechanism (free oscillation and forced oscillation), different fault position, different oscillation source. Power system dominated inter-area oscillations interface can be effectively obtained by proposed method, at the same time, dominated inter-area oscillations clusters also can be obtained. Finally, damping property of power system is effectively improved by configurating series damping controller in the dominant oscillation profile. The accuracy of the dominant oscillation interface identification is verified in this paper. At the same time, the proposed approach can also provides the basis for the configuration of damping control based on line.

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基于增量能量函数的电力系统占优区间振荡界面在线辨识

提出了基于增量能量函数法的电力系统占主导的区域间振荡界面在线辨识方法。通过计算分支振荡势能可以得到区域间的主导振荡界面，分支振荡势能是振荡能量的扎线集中。得到不同机构(自由振荡和受迫振荡)、不同故障位置、不同振荡源引起的振荡能量。该方法可以有效地得到电力系统的主域间振荡界面，同时也可以得到主域间振荡簇。最后，通过在主振型上配置串联阻尼控制器，有效地改善了电力系统的阻尼特性。本文验证了主振荡界面识别的准确性。同时，所提出的方法也可以为基于线路的阻尼控制配置提供依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The Open Electrical & Electronic Engineering Journal

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