Transient stability limit conditions analysis using a corrected transient energy function approach
Transient stability limit conditions analysis using a corrected transient energy function approach
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DOI：
10.1109/59.867177
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发表时间：
2000-05
影响因子：
6.6
通讯作者：
D. Fang;T. S. Chung;Yao Zhang;Wen-Bo Song
中科院分区：
文献类型：
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作者：
D. Fang;T. S. Chung;Yao Zhang;Wen-Bo Song
本文讨论了在线电力系统暂态稳定极限条件分析工具的开发问题。为了改进混合法在暂态稳定极限条件分析中的应用，提出了修正势能和修正势能边界面的概念。结果表明，在故障后暂态过程中，修正动能和修正势能之和的修正暂态能量函数（CTEF）值保持守恒（恒定值）。有效的标准，在识别第一个摆动稳定性行为也开发和使用的方法，将CTEF分析的混合方法，以评估校正的混合瞬态能量裕度。在10机新英格兰和50发电机IEEE测试电力系统上的初步仿真结果表明，该方法是有前途的在工厂和区域间模式干扰的电力系统的暂态稳定极限条件的评估。
This paper addresses the issue in developing tools for transient stability limit conditions analysis in on-line power system operation. Concepts, including corrected potential energy and corrected potential energy boundary surface, are proposed for improving use of hybrid method in transient stability limit conditions analysis. It is shown that the value of corrected transient energy function (CTEF), which is the sum of corrected kinetic energy and corrected potential energy is of conservation (maintains constant value) during post-fault transient period. Efficient criteria in identifying first swing stability behavior are also developed and used in the approach incorporating CTEF analysis in a hybrid method to evaluate corrected hybrid transient energy margin. Initial simulation results on the 10-machine New England and on the 50-generator IEEE test power systems show that the approach is promising in evaluations of transient stability limit conditions of power systems both for plant and inter-area mode disturbances.