TY - GEN
T1 - Robust sensor fault detection and isolation in load frequency control by unknown input observers
AU - Caliskan, Fikret
AU - Genc, Istemihan
PY - 2007
Y1 - 2007
N2 - In this paper, a robust sensor fault detection and isolation in load frequency control loop of interconnected power systems based on Unknown Input Observers (UIO) is designed and applied. The disturbances are assumed as unknown inputs to the UIO and the UIO is robust to disturbances. Simulations are performed for the dynamical model of a power control system composed of two areas. The proposed scheme is able to detect and isolate sensor faults. By using residuals, the designed "Fault Detection and Isolation Logic" system shows the operator which sensor is faulty. Hence the faulty sensor can be replaced by a healthy one for a more reliable operation.
AB - In this paper, a robust sensor fault detection and isolation in load frequency control loop of interconnected power systems based on Unknown Input Observers (UIO) is designed and applied. The disturbances are assumed as unknown inputs to the UIO and the UIO is robust to disturbances. Simulations are performed for the dynamical model of a power control system composed of two areas. The proposed scheme is able to detect and isolate sensor faults. By using residuals, the designed "Fault Detection and Isolation Logic" system shows the operator which sensor is faulty. Hence the faulty sensor can be replaced by a healthy one for a more reliable operation.
KW - Fault diagnosis
KW - Load frequency control
KW - Power system operation
UR - http://www.scopus.com/inward/record.url?scp=56149117125&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:56149117125
SN - 9780889866898
T3 - Proceedings of the IASTED International Conference on Energy and Power Systems
SP - 278
EP - 283
BT - Proceedings of the 7th IASTED International Conference on Power and Energy Systems
T2 - 7th IASTED International Conference on Power and Energy Systems
Y2 - 29 August 2007 through 31 August 2007
ER -