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电网技术  2007 

基于灵敏度分析的逐次追踪状态估计

, PP. 64-68

Keywords: 电力系统,状态估计,灵敏度分析,变化量测,逐次,追踪

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Abstract:

对状态量、量测量以及功率估计量之间的灵敏度关系进行了分析,进而提出了基于灵敏度分析的逐次追踪状态估计。该方法用于变化量测触发方式,通过灵敏度分析的方法,在每一触发时刻仅对变化量测进行逐次处理。算例表明,此方法极大地压缩了每次状态估计的计算量,明显缩短了单次状态估计计算的时间,而且能够保证与WLS算法非常接近的高计算精度。

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