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电网技术  2006 

基于直流分布因子的可用输电能力灵敏度分析

, PP. 45-48

Keywords: 电力市场,可用输电能力,灵敏度,节点功率,灵敏度有效区间

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Abstract:

交易的可用输电能力是在一定的基态潮流下计算得到的,一旦节点功率发生变化,最大可用输电能力会发生变化。文章通过对基于直流分布因子的可用输电能力计算过程的分析,根据决定可用输电能力的关键约束线路或约束断面潮流在节点功率变化后的变化情况得到可用输电能力与节点功率之间的灵敏度,该灵敏度能给出节点功率变化后可用输电能力的变化趋势,可用于计算节点功率变化后交易的可用输电能力,在节点功率变化后可避免反复计算可用输电能力指标,灵敏度有效区间能保证灵敏度应用时的可信性。算例结果证明了所提出方法的有效性。

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