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风电机组的状态-机会维修策略

DOI: 10.13334/j.0258-8013.pcsee.2015.15.013, PP. 3851-3858

Keywords: 风电机组,状态-机会维修,状态指示器,维修阈值函数,维修费用

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Abstract:

风电机组主要部件的维修需要高昂的费用,针对该问题,提出一种新的风电机组动态维修策略,即状态-机会维修策略。该策略指出风机各部件的衰退过程服从比例失效模型,部件的运行状态可通过状态指示器来表述,且部件何时维修以及如何维修可通过状态指示器与维修阈值函数的比较结果来确定。当某部件状态指示器的值越过该部件状态维修阈值函数时,对该部件实施状态维修,此时,若存在其他部件的状态指示器越过自身的机会维修阈值函数,则对其实施机会维修。两条维修阈值函数可通过维修成本最小的方法确定。最后,仿真结果验证了该策略的有效性。

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