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计及STATCOM容量约束的电压失稳性分析

, PP. 88-93

Keywords: 电力系统,电压稳定,分岔理论,静止同步补偿器,柔性交流输电系统

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Abstract:

随着柔性交流输电系统(flexibleACtransmissionsystem,FACTS)的广泛发展,研究其装置容量限制对电压稳定的影响具有重要意义。分析无功补偿设备输出达到容量极限时,可能出现引起电压失稳的极限诱导分岔;提出容量达到极限时判定发生极限诱导分岔的新判据,该判据只需估算矩阵谱半径的上下界,避免矩阵求逆和特征值等运算,在原理和技巧上有别于传统方法,具有原理清晰、计算量小的特点。基于上述判据探讨识别极限诱导分岔和鞍结分岔的综合方法,最后给出提高电压稳定裕度新的控制策略。该文以静止同步补偿器(staticsynchronouscompensator,STATCOM)

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