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## Unknown Input Observer Based Robust Actuator Fault Detection and Isolation in Interconnected Power Systems

#### V. M. Istemihan Genc [1] , Fikret Caliskan [2]

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In this paper, the performance degradation of a generating unit in a multi-area power system regulated by an area-wise decentralized load frequency control is detected and isolated via a scheme of unknown input observers. This scheme is robust to the changes in the load demand, which are considered as the unknown inputs. The actuator faults studied in this work are meant to be the performance degradations in generating units under load frequency control. Both stuck and non-stuck actuator faults are analyzed and the performances of the proposed method in both cases are tested through computer simulations on a two-area power system composed of five generating units. The results show that a performance degradation in any generating unit can be detected and isolated successfully provided that the faults in the sensors measuring generator outputs are absent.

fault diagnosis, load frequency control, fault detection and isolation, actuator fault, power generation control
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Birincil Dil en Mühendislik Araştırma Makalesi Orcid: 0000-0001-7077-8895Yazar: V. M. Istemihan Genc (Sorumlu Yazar)Kurum: ISTANBUL TECHNICAL UNIVERSITYÜlke: Turkey Orcid: 0000-0002-9108-6553Yazar: Fikret CaliskanKurum: ISTANBUL TECHNICAL UNIVERSITYÜlke: Turkey
 Bibtex @araştırma makalesi { bajece470308, journal = {Balkan Journal of Electrical and Computer Engineering}, issn = {2147-284X}, address = {Balkan Yayın}, year = {2019}, volume = {7}, pages = {6 - 14}, doi = {10.17694/bajece.470308}, title = {Unknown Input Observer Based Robust Actuator Fault Detection and Isolation in Interconnected Power Systems}, key = {cite}, author = {Genc, V. M. Istemihan and Caliskan, Fikret} } APA Genc, V , Caliskan, F . (2019). Unknown Input Observer Based Robust Actuator Fault Detection and Isolation in Interconnected Power Systems. Balkan Journal of Electrical and Computer Engineering, 7 (1), 6-14. DOI: 10.17694/bajece.470308 MLA Genc, V , Caliskan, F . "Unknown Input Observer Based Robust Actuator Fault Detection and Isolation in Interconnected Power Systems". Balkan Journal of Electrical and Computer Engineering 7 (2019): 6-14 Chicago Genc, V , Caliskan, F . "Unknown Input Observer Based Robust Actuator Fault Detection and Isolation in Interconnected Power Systems". Balkan Journal of Electrical and Computer Engineering 7 (2019): 6-14 RIS TY - JOUR T1 - Unknown Input Observer Based Robust Actuator Fault Detection and Isolation in Interconnected Power Systems AU - V. M. Istemihan Genc , Fikret Caliskan Y1 - 2019 PY - 2019 N1 - doi: 10.17694/bajece.470308 DO - 10.17694/bajece.470308 T2 - Balkan Journal of Electrical and Computer Engineering JF - Journal JO - JOR SP - 6 EP - 14 VL - 7 IS - 1 SN - 2147-284X- M3 - doi: 10.17694/bajece.470308 UR - http://dx.doi.org/10.17694/bajece.470308 Y2 - 2019 ER - EndNote %0 Balkan Journal of Electrical and Computer Engineering Unknown Input Observer Based Robust Actuator Fault Detection and Isolation in Interconnected Power Systems %A V. M. Istemihan Genc , Fikret Caliskan %T Unknown Input Observer Based Robust Actuator Fault Detection and Isolation in Interconnected Power Systems %D 2019 %J Balkan Journal of Electrical and Computer Engineering %P 2147-284X- %V 7 %N 1 %R doi: 10.17694/bajece.470308 %U 10.17694/bajece.470308 ISNAD Genc, V. M. Istemihan , Caliskan, Fikret . "Unknown Input Observer Based Robust Actuator Fault Detection and Isolation in Interconnected Power Systems". Balkan Journal of Electrical and Computer Engineering 7 / 1 (Ocak 2019): 6-14. http://dx.doi.org/10.17694/bajece.470308