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电网技术  2009 

电网安全评价的指标体系与方法

, PP. 30-34

Keywords: 电网,安全评价,指标体系,软件

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Abstract:

提出了一套较完整的电网安全评价指标体系,包括电网的安全供电能力、静态电压安全性、拓扑结构脆弱性、暂态安全性、风险指标5大类。该指标体系能够科学、全面地反映电网的安全水平,为电网安全应急技术措施的制定提供量化依据。改进了传统安全评价指标和方法,提出了系统N-K故障后失元件个数、最大供电区域指标、基于效用理论的过负荷、低电压、电压崩溃、功角失稳风险指标。该指标系统能够方便地对电网安全进行计算和分析,为电网的规划改造和安全生产运行提供了实用的辅助工具。最后以某电网为例,说明了所提指标体系的合理性和软件的实用性。

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