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电网技术  2006 

基于广域轨迹信息的多机系统暂态不稳定性快速预测方法

, PP. 53-58

Keywords: 电力系统,广域测量系统(WAMS),相量测量单元(PMU),轨迹凹凸性,暂态稳定性

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Abstract:

广域动态信息系统的建设和同步相量测量技术的发展为实时监视和预测电力系统暂态稳定性奠定了物质基础,采用广域动态轨迹信息协调决策全网紧急控制措施的实施会大大提高控制措施的正确性和有效性。文章提出了一种基于轨迹几何特征识别多机系统暂态不稳定性的方法,并利用结构保持模型下的暂态能量函数分析了所提方法的正确性。算例结果表明该方法具有较高的可靠性和较少的计算量,对系统模型参数有较强的鲁棒性,有望用作基于新一代广域测量系统(WAMS)的暂态稳定紧急控制的启动判据。

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