An improved integrated maintenance/spare parts management for wind turbine systems with adopting switching concept

In this work, we address an optimized integrated maintenance strategy and spare parts management problem for wind turbine system, with an observable level of degradation. The purpose of the study consists in establishing an improved maintenance strategy integrating a spare parts policy, according random production of energy over a given period. The wind turbine system failure rate is being modeled as a function of the current operating mode. Therefore, an improved maintenance strategy, characterized by a switching between both perfect and imperfect preventive maintenance actions, is developed and optimized. Formally, our objective is realized by the optimization of a total cost integrating maintenance action and spare parts management over a finite planning horizon, with considering the impact of the production rate on wind turbine system failure rate. A numerical study is realized in order to proof the robustness of the analytical model developed. (C) 2022 Published by Elsevier Ltd.

Automated summary

This study aims to develop an optimized integrated maintenance strategy and spare parts management plan for wind turbine systems with observable degradation. The strategy integrates a spare parts policy and considers the random production of energy. By modeling the failure rate of the wind turbine systems as a function of the current operating mode, an improved maintenance strategy is developed and optimized to switch between perfect and imperfect preventive maintenance actions. The objective is to optimize the total cost of maintenance actions and spare parts management over a finite planning horizon, taking into account the impact of production rate on the failure rate of the wind turbine systems.