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电网技术  2009 

快速评估电力系统频率稳定性的方法

, PP. 73-77

Keywords: 电力系统,频率稳定性,调速器,励磁系统,稳态频率

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Abstract:

针对动态分析频率稳定性计算费时、无法满足在线应用的难题,从静态分析的角度提出了一种快速评估频率稳定性的方法。该方法以故障后稳态频率或近似故障后稳态频率为评估指标,并以最大故障后波动频率为辅助指标。文中建立的3个指标数学模型均是代数方程,不包含微分方程。这些指标具有计算速度快、符合物理实际的优点,可以满足大型电网实际在线应用的需要。算例仿真结果验证了所提方法的正确性和有效性。

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