Mathematical optimization models for long-term maintenance scheduling of wind power systems
Preprint, 2021
An effective scheduling of the maintenance activities may reduce the costs related to maintenance.
We combine mathematical modelling of preventive maintenance scheduling with corrective maintenance strategies. We further consider different types of contracts between the wind farm owner and a maintenance or insurance company, and during different phases of the turbines' lives and the contract periods. Our combined preventive and corrective maintenance models are then applied to relevant combinations of the phases of the turbines' lives and the contract types.
Our case studies show that even with the same initial criteria, the optimal maintenance schedules differ between different phases of time as well as between contract types. One case study reveals a 40% cost reduction and a significantly higher production availability---1.8% points---achieved by
our optimization model as compared to a pure corrective maintenance strategy. Another study shows that the number of planned preventive maintenance occasions for a wind farm decreases with an increasing level of an insurance contract regarding reimbursement of costs for broken components.
Integer linear optimization
Maintenance contract
Preventive maintenance
Wind turbine maintenance
Corrective maintenance
Interval costs
Författare
Quanjiang Yu
Chalmers, Matematiska vetenskaper, Tillämpad matematik och statistik
Ann-Brith Strömberg
Chalmers, Matematiska vetenskaper, Tillämpad matematik och statistik
Site-specifika analysmetoder för att förutsäga och öka livstiden för vindturbiner
Svensk Vindkraftstekniskt Centrum (SWPTC), 2019-07-01 -- 2022-12-31.
Drivkrafter
Hållbar utveckling
Ämneskategorier
Beräkningsmatematik
Tillförlitlighets- och kvalitetsteknik
Styrkeområden
Energi