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A new trajectory sensitivity approach for computations of critical parameters

机译:一种计算关键参数的新型轨迹灵敏度方法

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摘要

An approach is proposed to assess critical parameters in power system through an evaluation of trajectory sensitivity factors, such as fault critical clearing time (CCT), stability limit generation of generator. Firstly, new formulations for analysis of trajectory sensitivity with respect to fault clearing time are developed. And then, an approach to map the trajectory sensitivity to a sensitivity factor of minimum corrected kinetic energy to fault clearing time is introduced. Directed by the sensitivity factor, CCTs of contingencies are evaluated through an iterative process. It is the advantage that the CCT approach can be used for power systems represented by complex models. Combined with α sensitivity, similar technique can be used to compute generation limit of generators. Case studies for both CCT and generation limit assessments are performed on the 10-generator New England test system to verify the effectiveness and accuracy of the approach.
机译:提出了一种通过评估轨迹敏感性因素来评估电力系统中关键参数的方法,例如故障关键清除时间(CCT),发电机的稳定性极限生成。首先,开发了关于故障清除时间的轨迹灵敏度分析的新公式。然后,介绍了一种将轨迹灵敏度映射到最小校正动能到故障清除时间的灵敏度因子的方法。根据敏感度因子,通过迭代过程评估意外事件的CCT。 CCT方法可用于以复杂模型表示的电力系统的优点是。结合α灵敏度,可以使用类似技术来计算发电机的发电极限。在10发电机New England测试系统上进行了CCT和发电极限评估的案例研究,以验证该方法的有效性和准确性。

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