基于PMU的电力系统暂态稳定评估方法研究

Research on evaluation method of power system transient stability based on PMU

由于传统的电力系统暂态稳定评估方法,在进行电力系统暂态稳定评估时均方误差大,因此无法实现对电力系统暂态稳定的精准评估。针对这一问题,进行基于PMU的电力系统暂态稳定评估方法研究。首先,支持电力系统暂态稳定参数选择优化,再建立暂态稳定评估决策树,分析确定暂态稳定评估特征重要度,完成基于PMU的电力系统暂态稳定评估。最后通过实验证明:基于PMU的电力系统暂态稳定评估方法可以降低电力系统暂态稳定评估的评估误差率,实现电力系统暂态稳定评估。

Due to the traditional method for transient stability assessment of power systems,the mean square error is large during the transient stability assessment of power systems,so accurate assessment of transient stability of power systems cannot be achieved.Aiming at this problem,the research of PMU-based power system transient stability assessment method is conducted.First,support the selection and optimization of power system transient stability parameters,then establish a transient stability assessment decision tree,analyze and determine the importance of the characteristics of the transient stability assessment,and complete the PMU-based power system transient stability assessment.Finally,it is proved through experiments that the PMU-based power system transient stability assessment method can reduce the evaluation error rate of the power system transient stability assessment and realize the power system transient stability assessment.