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2012. Routing in offshore wind farms: A multi-period location and maintenance problem with joint use of a service operation vessel and a safe transfer boat
Invited abstract in session MB-25: Discrete, continuous or stochastic optimization and control in networks, transportation and design II, stream Combinatorial Optimization.
Monday, 10:30-12:00Room: 011 (building: 208)
Authors (first author is the speaker)
1. | Majid Eskandarpour
|
IÉSEG School of Management (LEM-CNRS 9221) | |
2. | Chandra Irawan
|
Nottingham Business School, University of Nottingham China | |
3. | Mohammad Reihaneh
|
Operations Management, IESEG School of Management (LEM-CNRS 9221) | |
4. | Stefano Starita
|
Sasin School of Management |
Abstract
This paper studies an interesting logistical problem related to maintaining a set of selected turbines in offshore wind farms. A service operation vessel (SOV), used to support maintenance activities, also carries a safe transfer boat (STB), which is used to transport technicians, parts, and equipment to the turbines. The maintenance activities are optimised over a planning horizon by simultaneously coordinating the SOV and the STB. A mixed-integer linear programming model is designed, where the objective function is to minimise the total maintenance cost. As the proposed mathematical model is hard to solve with a commercial solver, a decomposition approach is developed. A two-stage stochastic programming model is also designed to tackle uncertain conditions, including the duration of maintenance and the STB's travel time. The performance of the solution method is evaluated using the Thanet Offshore Wind Farm, in the southeast of the UK. The results of our experiments show that joint use of an SOV and an STB can yield a lower total maintenance cost than only using an SOV or crew travel vessels (CTVs) that are currently the common practice in maintaining offshore turbines.
Keywords
- Combinatorial Optimization
- Practice of OR
Status: accepted
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