在连续潮流法的基础上，结合经过改进的差异进化算法，通过对变量的组合优化，求取系统静态电压稳定安全裕度。
By combining the continuous power flow method with improved differential evolution calculation, the static voltage stability margin is found via optimal grouping of relevant variables.
以河南电网为例，采用暂态安全定量分析软件FASTEST计算了不同动态负荷模型比例时的暂态功角稳定裕度和临界切除时间。
The transient Angle stability margin and critical clearing time are computed by FASTEST under different proportion of dynamic electric load model using in Henan Power Grid.
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