| 引用本文: | 林 洁,兰 斌,陈 伟,等.基于随机冲击和多状态劣化的风电机组组合维修策略[J].电力系统保护与控制,2025,53(20):164-175.[点击复制] |
| LIN Jie,LAN Bin,CHEN Wei,et al.Combined maintenance strategy for wind turbines based on random shocks and multi-state degradation[J].Power System Protection and Control,2025,53(20):164-175[点击复制] |
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| 摘要: |
| 针对目前风电机组维修效率低、维修时机难以预测、维修成本占比高等问题，提出一种基于随机冲击和多状态劣化的风电机组组合维修策略。考虑到风电机组运行过程中存在的多种状态劣化和随机冲击影响，首先利用半马尔可夫过程(semi-Markov process, SMP)和随机冲击模型对风电机组的劣化过程进行了建模。其次，提出一种多状态的组合维修策略，将风电机组劣化状态划分为正常区、机会维修区、预防性维修区和事后维修区，在风电机组维修决策中综合应用预防性维修、机会维修和事后维修，求解风电机组各个部件的维修需求并确定合理的检测周期和维修阈值。仿真结果表明，该策略能够有效减少风电场的运维成本并提升风电机组的运行可靠性。 |
| 关键词: 风电机组 随机冲击 多状态劣化 组合维修策略 |
| DOI：10.19783/j.cnki.pspc.241712 |
| 投稿时间：2024-12-22修订日期：2025-07-11 |
| 基金项目:国家自然科学基金项目资助(51767017)；甘肃省联合科研基金重大项目资助(25JRRA1143)；甘肃省重点研发计划项目资助(25YFGA032) |
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| Combined maintenance strategy for wind turbines based on random shocks and multi-state degradation |
| LIN Jie,LAN Bin,CHEN Wei,PEI Tingting,ZHU Jianghao |
| (School of Electrical Engineering and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China) |
| Abstract: |
| To address the problems of low maintenance efficiency, difficulty in predicting maintenance timing, and high maintenance cost proportions in wind turbines, this paper proposes a combined maintenance strategy for wind turbines based on random shocks and multi-state degradation. Considering the effects of multiple state degradation and random shocks during wind turbine operation, the degradation process is first modeled using semi-Markov process and random shock model. Second, a multi-state combined maintenance strategy is developed, in which the degradation states of wind turbines are clarifies into normal, opportunistic maintenance, preventive maintenance, and corrective maintenance zones. Preventive maintenance, opportunistic maintenance, and corrective maintenance are jointly applied in maintenance decision-making to determine the maintenance needs of each wind turbine component, along with appropriate inspection intervals and maintenance thresholds. Simulation results show that the proposed strategy effectively reduces operation and maintenance costs of wind farms while improving the operational reliability of wind turbines. |
| Key words: wind turbine random shock multi-state degradation combined maintenance strategy |
