TY - JOUR
T1 - On risk-based operation and maintenance of offshore wind turbine components
AU - Nielsen, Jannie Jessen
AU - Sørensen, John Dalsgaard
PY - 2011
Y1 - 2011
N2 - Operation and maintenance are significant contributors to the cost of energy for offshore wind turbines. Optimal planning could rationally be based on Bayesian pre-posterior decision theory, and all costs through the lifetime of the structures should be included. This paper contains a study of a generic case where the costs are evaluated for a single wind turbine with a single component. Costs due to inspections, repairs, and lost production are included in the model. The costs are compared for two distinct maintenance strategies, namely with and without inclusion of periodic imperfect inspections. Finally the influence of different important parameters, e.g. failure rate, reliability of inspections, inspection interval, and decision rule for repairs, is evaluated.
AB - Operation and maintenance are significant contributors to the cost of energy for offshore wind turbines. Optimal planning could rationally be based on Bayesian pre-posterior decision theory, and all costs through the lifetime of the structures should be included. This paper contains a study of a generic case where the costs are evaluated for a single wind turbine with a single component. Costs due to inspections, repairs, and lost production are included in the model. The costs are compared for two distinct maintenance strategies, namely with and without inclusion of periodic imperfect inspections. Finally the influence of different important parameters, e.g. failure rate, reliability of inspections, inspection interval, and decision rule for repairs, is evaluated.
KW - Wind energy
KW - Offshore wind energy
KW - Offshore vindenergi
KW - Vindenergi
U2 - 10.1016/j.ress.2010.07.007
DO - 10.1016/j.ress.2010.07.007
M3 - Journal article
SN - 0951-8320
VL - 96
SP - 218
EP - 229
JO - Reliability Engineering & System Safety
JF - Reliability Engineering & System Safety
IS - 1
ER -