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基于条件成本收益分析的长期备用规划与决策

DOI: 10.13334/j.0258-8013.pcsee.2014.31.022, PP. 5642-5650

Keywords: 条件可靠性收益,条件成本收益分析,条件最优备用容量,可靠性评估

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Abstract:

备用容量规划对电力系统的异常状态和极端损失情形敏感,而传统的基于整体均值的可靠性成本和收益不能反映决策者对高损失-低概率事件的特别关注。将条件可靠性成本和收益的概念引入长期备用规划问题,在决策者关心的损失范围内进行条件成本收益分析,得到的条件最优备用容量能够反映决策者的风险偏好和经验。进行接受裕度校验,从条件总成本的角度确认是否接受最优备用容量,以及接受或拒绝该方案的确信程度。基于序贯蒙特卡罗模拟计算条件可靠性收益,进而求解模型。对IEEE-RTS79的算例分析表明:决策者的风险偏好对备用容量的规划有显著影响,随着关注的损失范围由整体平均转向极端不利,系统对备用容量的需求持续上升。

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