Opportunistic maintenance for wind turbines considering imperfect, reliability-based maintenance

Zhang, Chen; Gao, Wei; Guo, Sheng; Li, Youliang; Yang, Tao

doi:10.1016/j.renene.2016.10.072

Cited by 96 publications

(41 citation statements)

References 16 publications

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“…Maintenance planning, which is an indispensable necessity for the design and operation of an effective maintenance management system, has led to the development of different maintenance planning strategies over time. The three of these strategies are; reliability-based maintenance [8], state-based maintenance [9], and finally risk-based maintenance [10]. In this study, considering the requirements for the operation of hydroelectric power facilities, which are selected as the application area and mentioned in Section 2, it is considered appropriate to take the risk-based maintenance planning strategy which has recently increased the interest to form the maintenance plans.…”

Section: Studies In the Literaturementioning

confidence: 99%

“…Step 5: The consistency ratio (CR) of the judgments in each paired comparison matrix should be calculated in order to measure whether the decision-maker has consistently compared the values in the hierarchy to the elements in the hierarchy. In order to calculate the CR value, the first basic value (λ) of the binary comparison matrix must be calculated using Equations (6)- (8). The D column vector is obtained by multiplying the matrix A with the W priority vector (Equation (6)).…”

Section: Equally Importantmentioning

confidence: 99%

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Risk Based Maintenance in the Hydroelectric Power Plants

2019

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In this study, maintenance planning problem is handled in one of the hydroelectric power plants which directly affect Turkey’s energy supply security with a fifth share in the total generation. In this study, a result is obtained by taking into consideration the multi-objective and multi-criteria structure of the maintenance planning in the hydroelectric power plants with thousands of complex equipment and the direct effect of this equipment on uninterrupted and low-cost electricity generation. In the first stage, the risk levels of the equipment in terms of the power plant are obtained with the combination of AHP (Analytical Hierarchy Process) and TOPSIS (technique for order preference by similarity to ideal solution) which are frequently used in the literature due to their advantages. Department-based maintenance plans of all equipment for periodic and revision maintenance strategies are formed by integrating these values into the time allocated for maintenance and the number of employees constraints. As a result of the application of this methodology which is designed for the first time in the literature with the integration of multi-criteria decision-making methods for the maintenance planning problem in a hydroelectric power plant, all elements that prevent the sustainable energy supply in the power plant are eliminated.

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Section: Studies In the Literaturementioning

confidence: 99%

Section: Equally Importantmentioning

confidence: 99%

Risk Based Maintenance in the Hydroelectric Power Plants

2019

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“…[20] An opportunistic maintenance approach considering a reliability-based imperfect maintenance schedule was proposed in Ref. [21], which solved the problem that maintenance actions did not always return the system to "as good as new" condition. A wind-centered maintenance strategy integrating multiple maintenance opportunities and diverse impacts of wind conditions was designed in Ref.…”

Section: Introductionmentioning

confidence: 99%

An improved opportunistic group replacement maintenance strategy for wind turbines

Wang

et al. 2020

Energy Science & Engineering

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“…Meanwhile, many researchers have theoretically investigated the opportunistic maintenance strategy from a different perspective. In [16], a two-level maintenance threshold strategy for wind farms was developed, considering opportunistic maintenance and imperfect maintenance based on reliability. In [17], opportunistic condition-based maintenance for systems subjected to degradation and shocks was proposed to determine an optimal maintenance policy for multi-bladed offshore wind turbines.…”

Section: Introductionmentioning

confidence: 99%

Maintenance Optimization of Offshore Wind Turbines Based on an Opportunistic Maintenance Strategy

Xie

Rui

et al. 2019

Energies

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Owing to the late development of offshore wind power in China, operational data and maintenance experience are relatively scarce. Due to the harsh environmental conditions, a reliability analysis based on limited sample fault data has been regarded as an effective way to investigate maintenance optimization for offshore wind farms. The chief aim of the present work is to develop an effective strategy to reduce the maintenance costs of offshore wind turbines in consideration of their accessibility. The three-parameter Weibull distribution method was applied to failure rate estimation based on limited data. Moreover, considering the impacts of weather conditions on the marine maintenance activities, the Markov method and dynamic time window were used to depict the weather conditions. The opportunistic maintenance strategy was introduced to cut down on the maintenance costs through optimization of the preventive maintenance age and opportunistic maintenance age. The simulation analysis we have performed showed that the maintenance costs of the opportunistic maintenance strategy were 10% lower than those of the preventive maintenance strategy, verifying the effectiveness of the proposed maintenance strategy.

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Opportunistic maintenance for wind turbines considering imperfect, reliability-based maintenance

Cited by 96 publications

References 16 publications

Risk Based Maintenance in the Hydroelectric Power Plants

Risk Based Maintenance in the Hydroelectric Power Plants

An improved opportunistic group replacement maintenance strategy for wind turbines

Maintenance Optimization of Offshore Wind Turbines Based on an Opportunistic Maintenance Strategy

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