Mingxin Li

Mingxin Li
Delft University of Technology | TU · Department of Maritime and Transport Technology (M&TT)

About

12
Publications
1,943
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Introduction
Mingxin Li is working at the section of Transport Engineering & Logistics, Department of Maritime and Transport Technology (M&TT), Delft University of Technology. His research interests include wind energy, reliability analysis, maintenance optimization, Markov process, operation and maintenance.

Publications

Publications (12)
Article
Full-text available
Operation and maintenance (O&M) costs account for a large proportion of the total costs for offshore wind energy. Performing a reasonable maintenance strategy is an effective approach to reduce O&M costs and gain more profits. In this paper, an opportunistic maintenance strategy for offshore wind turbine systems considering maintenance intervals of...
Article
Full-text available
Gearbox in offshore wind turbines is a component with the highest failure rates during operation. Analysis of gearbox repair policy that includes economic considerations is important for the effective operation of offshore wind farms. From their initial perfect working states, gearboxes degrade with time, which leads to decreased working efficiency...
Article
Full-text available
The load and corrosion caused by the harsh marine environment lead to the severe degradation of offshore equipment and to their compromised security and reliability. In the quantitative risk analysis, the failure models are difficult to establish through traditional statistical methods. Hence, the calculation of the occurrence probability of small...
Conference Paper
Full-text available
Floating Production Storage and Offloading (FPSO), a significant offshore oil-gas production system, faces a variety of risks in the process of operation. Vapor cloud explosion (VCE) caused by combustible gas leakage is likely to occur on the topside of FPSO. As an initial accident, VCE has an effect on surrounding devices, leading to subsequent co...
Article
Full-text available
While offshore wind energy is showing enormous potential, effective approaches to enhance its economics are being sought at the same time. The design of maintenance strategy is a type of strategic decision-making for offshore wind farms, aiming to improve energy production and reduce maintenance expenses. As a complicated and challenging task, the...
Article
Full-text available
Operation & maintenance (O&M) costs account for a large portion of total life cycle cost for onshore wind energy, and the amount is estimated to be more for offshore wind energy. Developing a sound opportunistic maintenance strategy is a solution to reduce O&M costs and enhance wind energy's competitiveness. When the wind farm is located offshore,...
Article
Full-text available
Operation & maintenance (O&M) costs account for a large portion of total life cycle cost for onshore wind energy, and the amount is estimated to be more for offshore wind energy. Developing a sound opportunistic maintenance strategy is a solution to reduce O&M costs and enhance wind energy's competitiveness. When the wind farm is located offshore,...
Conference Paper
Full-text available
A sound maintenance strategy is significant for wind energy development, because it can strengthen the competitiveness of wind power. The design and development of maintenance strategies for wind energy is a complicated topic which involves failure modes, degeneration process, weather conditions, spare parts management, accessibility for repair, av...
Conference Paper
Full-text available
Offshore wind turbine gearbox is a multi-state assembly, implying that several working states with different performance rates exist. In this study, the system is assumed as a non-homogeneous continuous time Markov process and the status of the system is considered to degrade with use. The degradations caused by harsh environment may result in decr...

Projects

Projects (2)
Project
Offshore wind energy is showing its enormous potential due to the advantages of higher quality wind sources, unlimited installation space and so on. One of the most significant issues for developing offshore wind energy is to reduce Operation & Maintenance (O&M) costs for offshore wind farms. A reasonable maintenance policy can effectively decrease maintenance costs and generate more profits for offshore wind farm owners. As a maintenance policy addressing economic dependence, the opportunistic maintenance is presenting considerable capacities for offshore wind farms. The reason is that the costs of logistics and transportation for offshore wind energy are much higher than onshore, and opportunistic maintenance can effectively reduce the cost of this section by capturing opportunities by grouping maintenance activities. Hence how to optimize opportunistic maintenance for offshore wind farms has been a vital topic drawing increasing attention from industry and academia. An offshore wind farm usually consists of hundreds of wind turbines, and economic dependence exists in wind farms. If a maintenance team is dispatched to perform maintenance on failed turbines, other deteriorated components meeting maintenance conditions in this failed turbines or other running turbines can also be repaired simultaneously in advance. This kind of maintenance strategy is called opportunistic maintenance which can be effectively save maintenance costs and efforts. Furthermore, if only consider reducing cost, the proposed maintenance policy may not be ideal enough to ensure performance and production of offshore wind farms. So developing a sound opportunistic maintenance policy which can save enormous O&M costs and maintain offshore wind farms in satisfying operation states will be an interesting and significant topic.
Archived project
Built FOWT system tree and estimated system safety based on FMECA & FTA. Develop the assessment software