TY - GEN
T1 - Certificate for Safe Emergency Shutdown of Wind Turbines
AU - Wisniewski, Rafal
AU - Svenstrup, Mikael
AU - Pedersen, Andreas Søndergaard
AU - Steiniche, Christian Sigge
PY - 2013
Y1 - 2013
N2 - To avoid damage to a wind turbine in the case of a fault or a large wind gust, a detection scheme for emergency shutdown is developed. Specifically, the concept of a safety envelope is introduced. Within the safety envelope, the system can be shutdown without risking structural damage to the turbine. To demarcate the boundary of the safety envelope, a protection certificate, is computed. To this end, a model- based framework of barrier certificates is used. As a result, the protection certificate problem is formulated as a sum-of- squares program with the optimisation criterion related to the volume of the safety envelope. The framework enables the inclusion of a bounded wind disturbance and the a priori known emergency shutdown procedure. For this purpose, the model of a wind turbine is developed that includes structural safety critical components.
AB - To avoid damage to a wind turbine in the case of a fault or a large wind gust, a detection scheme for emergency shutdown is developed. Specifically, the concept of a safety envelope is introduced. Within the safety envelope, the system can be shutdown without risking structural damage to the turbine. To demarcate the boundary of the safety envelope, a protection certificate, is computed. To this end, a model- based framework of barrier certificates is used. As a result, the protection certificate problem is formulated as a sum-of- squares program with the optimisation criterion related to the volume of the safety envelope. The framework enables the inclusion of a bounded wind disturbance and the a priori known emergency shutdown procedure. For this purpose, the model of a wind turbine is developed that includes structural safety critical components.
U2 - 10.1109/ACC.2013.6580399
DO - 10.1109/ACC.2013.6580399
M3 - Article in proceeding
SN - 978-1-4799-0177-7
T3 - American Control Conference
SP - 3667
EP - 3672
BT - American Control Conference (ACC), 2013
PB - American Automatic Control Council
T2 - The 2013 American Control Conference
Y2 - 17 June 2013 through 19 June 2013
ER -