An opportunistic maintenance strategy for offshore wind turbine system considering optimal maintenance intervals of subsystems

Li, Mingxin; Wang, Mian; Kang, Jichuan; Sun, Liping; Jin, Peng

doi:10.1016/j.oceaneng.2020.108067

Cited by 36 publications

(12 citation statements)

References 50 publications

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“…Opportunities can be: during low wind speed [103], performing scheduled maintenance during unscheduled trips [104] and group based maintenance [105]. There is increasing interest in multilevel decision-making and strategy by introducing opportunistic thresholds based on age [106][107][108][109][110], locational clustering [111], and condition [112]. Due to the redundant nature of failures for MRS and XRC, these technologies are in a position to benefit from this strategy.…”

Section: Maintenance Strategymentioning

confidence: 99%

A review of operations and maintenance modelling with considerations for novel wind turbine concepts

McMorland

Flannigan

Carroll

et al. 2022

Renewable and Sustainable Energy Reviews

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Section: Maintenance Strategymentioning

confidence: 99%

A review of operations and maintenance modelling with considerations for novel wind turbine concepts

McMorland

Flannigan

Carroll

et al. 2022

Renewable and Sustainable Energy Reviews

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“…Simulation results show that the proposed strategy reduces the maintenance cost by approximately 32.46-39.24% compared to widely used maintenance strategies. Li et al [118] have proposed an opportunistic maintenance strategy considering maintenance intervals of each subsystem of an offshore wind turbine and have analyzed the influence of maintenance time schedule in order to decrease the maintenance cost. Optimal maintenance intervals for each subsystem and reduced total maintenance cost compared to conventional maintenance strategy have been obtained.…”

Section: Offshore Wind Turbines' Maintenancementioning

confidence: 99%

A Review of Recent Advancements in Offshore Wind Turbine Technology

et al. 2022

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Offshore wind turbines are becoming increasingly popular due to their higher wind energy harnessing capabilities and lower visual pollution. Researchers around the globe have been reporting significant scientific advancements in offshore wind turbines technology, addressing key issues, such as aerodynamic characteristics of turbine blades, dynamic response of the turbine, structural integrity of the turbine foundation, design of the mooring cables, ground scouring and cost modelling for commercial viability. These investigations range from component-level design and analysis to system-level response and optimization using a multitude of analytical, empirical and numerical techniques. With such wide-ranging studies available in the public domain, there is a need to carry out an extensive yet critical literature review on the recent advancements in offshore wind turbine technology. Offshore wind turbine blades’ aerodynamics and the structural integrity of offshore wind turbines are of particular importance, which can lead towards system’s optimal design and operation, leading to reduced maintenance costs. Thus, in this study, our focus is to highlight key knowledge gaps in the scientific investigations on offshore wind turbines’ aerodynamic and structural response. It is envisaged that this study will pave the way for future concentrated efforts in better understanding the complex behavior of these machines.

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“…Scenario (30). Defect in [( 1) , ] j s js − , and opportunistic replacement in [ , ] Ws Ms ( 1,..., 31).…”

Section: Fundingmentioning

confidence: 99%

A hybrid maintenance policy with fixed periodic structure and opportunistic replacement

Melo¹,

Cavalcante²,

Scarf

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part O:

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We model a maintenance policy with fixed periodic structure that is a hybrid of periodic inspection and opportunistic replacement. The policy is applicable to geographically remote systems such as offshore wind farms. The policy has three phases. Initially, there is an inspection phase to identify early defects. This is followed by a wear out phase during which corrective replacements are performed. Preventive replacement occurs at the end of this phase. The novelty of the model is an opportunistic phase, which overlaps with the latter part of the corrective phase, when preventive replacement is executed early if an opportunity arises. In this way, we model the reality in which remote systems with high logistics costs and restricted access may benefit from opportunistic visits for maintenance. Using a numerical example, we analyse the behaviour of the decision variables for a range of values of the parameters common to such systems. These parameters relate to: component heterogeneity; restricted access; default (failure to execute a planned action); arrival of opportunities and other standard parameters in a maintenance cost model. Specifically, our results indicate when opportunities can have a significant impact on the cost-rate of the optimum policy, but that leveraging opportunities cannot achieve a very high availability. Generally, we demonstrate that maintenance planning should be flexible when factors beyond the control of the maintainer impact maintenance effectiveness.

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An opportunistic maintenance strategy for offshore wind turbine system considering optimal maintenance intervals of subsystems

Cited by 36 publications

References 50 publications

A review of operations and maintenance modelling with considerations for novel wind turbine concepts

A review of operations and maintenance modelling with considerations for novel wind turbine concepts

A Review of Recent Advancements in Offshore Wind Turbine Technology

A hybrid maintenance policy with fixed periodic structure and opportunistic replacement

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