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电网技术  2015 

应用TRIZ理论的电力系统可靠性评估算法改进

DOI: 10.13335/j.1000-3673.pst.2015.05.030, PP. 1372-1378

Keywords: TRIZ理论,矛盾矩阵,可靠性评估,塔存储技术,拉丁超立方采样

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Abstract:

实际大系统工程中,可靠性评估软件计算耗时长,难以满足快速且精确的评估要求。为此,该文将TRIZ理论引入电力系统可靠性评估算法的改进中。首先根据TRIZ理论,应用矛盾矩阵找出序贯仿真算法计算时间与精度之间矛盾的解决方案,再根据矛盾解决原则筛选出塔存储技术及拉丁超立方采样(Latinhypercubesampling,LHS)技术改进基于蒙特卡洛模拟的传统算法。改进后的算法在缩短故障状态搜索时间的同时能更全面覆盖系统元件状态持续时间的概率分布。在IEEE-RTS79测试系统上进行的算例分析结果表明,改进后的算法收敛更快,能在较短的计算时间内获得高精度的解,且具有良好的稳定性。

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