基于可靠度的风电机组预防性机会维修策略

发布时间：2018-06-03 06:59

本文选题：风电机组 + 可靠度　；参考：《中国电机工程学报》2014年22期

【摘要】：风电机组关键部件维修会产生昂贵的固定维修费用、停机损失及发电损失。针对该问题,提出一种风电机组的预防性机会维修策略。在每个部件可靠度函数服从威布尔分布的基础上,依据可靠性要求估算各部件的预防性维修时间。通过定义机会维修可靠度裕度,并将之与预防性维修时间点处可靠度函数的斜率绝对值的倒数相乘,计算出每个部件的机会维修区间。利用二次抛物线插值法,以总费用为目标函数对机会维修区间进行优化,使得维修费用最小。结合实际风场维修案例进行仿真,结果表明,预防性机会维修策略比预防性维修策略减少了停机维修次数,节省了维修成本,因而证明了该策略的有效性。
[Abstract]:The maintenance of the key parts of the wind turbine will produce expensive fixed maintenance costs, downtime loss and power loss. In view of this problem, a preventive opportunity maintenance strategy for wind turbines is proposed. On the basis of each component's reliability function obeying Weibull distribution, the preventive maintenance time of each component is estimated according to its reliability. The opportunity maintenance reliability margin is defined and it is multiplied with the reciprocal of the absolute value of the reliability function at the preventive maintenance time point. The opportunity maintenance interval of each component is calculated. The two parabolic interpolation method is used to optimize the opportunity maintenance interval with the total cost as the objective function, which makes the maintenance cost minimum. Combined with the actual wind, the maintenance cost is minimized. The field maintenance case is simulated. The results show that the preventive opportunity maintenance strategy reduces the number of maintenance times and saves the maintenance cost than the preventive maintenance strategy, thus proving the effectiveness of the strategy.
【作者单位】：新能源电力系统国家重点实验室(华北电力大学);
【分类号】：TM315

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