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| 摘要: |
| 以详细数值积分得到的轨迹信息为基础，利用轨迹暂态能量函数的概念和思想，提出了一种理化系统稳定性的方法，即构造了暂态稳定指标ＳＩ和不稳定指标ＵＩ，数值仿真结果表明，所构造指标是合理和有效的。该方法克服了数值积分只能定性分析不能定量分析稳定性的缺点，同时具有数值积分的优点－－广泛的模型适用性。 |
| 关键词: 电力系统 暂态稳定 稳定裕度 轨迹信息 |
| DOI： |
| 分类号:TM712 |
| 基金项目:高等学校博士点专项科研基金!(RFDP98069814)资助课题 |
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| Research on Transient Stability Margin Based on Trajectory Analysis |
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LU Zhi lai ZHANG Bao hui HA Heng xu
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| Abstract: |
| Based on the trajectory data produced from numerical integration and the concept of trajectory transient energy function,a method for quantifying the system stability is proposed.That is to set up a transient stability index SI and an instability index UI.The simulation results show that these two indexes are rational and effective.The method solves the problem in numerical integration,which can only qualitatively analyze the system stability,and keeps the advantage of numerical integration wide model adaptability. |
| Key words: power system,transient stability,trajectory transient energy,stability margin |
