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

Yıl 2019, Cilt: 7 Sayı: 1, 6 - 14, 31.01.2019

V. M. İstemihan Genc , Fikret Caliskan

https://doi.org/10.17694/bajece.470308

Öz

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.

Anahtar Kelimeler

fault diagnosis, load frequency control, fault detection and isolation, actuator fault, power generation control

Kaynakça

• Y. Guan and M. A. Saif, “A new approach to robust fault detection and identification”, IEEE Trans. on Aerospace and Electronic Systems, vol. 29, no. 3, pp. 685-695, 1993.
• F. Yang, and R. W. Wilde, “Observers for linear systems with unknown inputs”, IEEE Trans. on Automatic Control, vol. 33, no. 7, pp. 677-681, 1998.
• J. Chen and R. J. Patton, Robust model-based fault diagnosis for dynamic systems, Kluwer Academic Publisher, pp. 68-84, 1999.
• C. C. Tsui, “A new design approach to unknown input observers”, IEEE Trans. on Automatic Control, vol. 41, no. 3, pp. 464-468, 1996.
• M. Aldeen and R. Sharma, “Robust detection fault in frequency control loops”, IEEE Trans. on Power Systems, vol. 22, no. 1, pp. 413-422, 2007.
• M. Aldeen and F. Crusca, “Observer-based fault detection and identification scheme for power systems”, IEE Proc. of Gener. Transm.Distrib., vol. 153, no. 1, pp. 71-79, 2006.
• S. Das, S.R. Mohanty, S. Pattnaik, “Abrupt Change Detection of Fault in Power System Using Independent Component Analysis”, International Journal of Computer Science and Information Security, vol. 9, No. 6, June, 2011.
• A. Thabet, M. Boutayeb, G. Didier, S. Chniba, and M.N. Abdelkerim, “Fault diagnosis for dynamic power system”, Proc. 8th International Multi-Conference on Systems, Signals & Devices, 2011.
• S. Sojoudi, J. Lavaei, R. M. Murray, “Fault-Tolerant Controller Design with Applications in Power Systems and Synthetic Biology”, Proc. American Control Conference, California, USA, 2011.
• Y. Sun, N. Li, X. Zhao, Z. Wei, G. Sun, C. Huang, “Robust H∞ load frequency control of delayed multi-area power system with stochastic disturbances”, Neurocomputing, 193, 58-67, 2016
• A. Tanwani, A. D. Domínguez-García, D. Liberzon, “An Inversion-Based Approach to Fault Detection and Isolation in Switching Electrical Networks”, IEEE Trans. on Control Systems Technology, vol. 19, no. 5, pp. 1059-1074, 2011.
• I. Shames, A. M. T Teixeria, H. Sandberg, K. H. Johannson, “Distributed fault detection for interconnected second-order systems”, Automatica, vol. 47, no. 12, pp. 2757-2764, 2011.
• F. Caliskan, I. Genc, “A Robust Fault Detection and Isolation Method in Load Frequency Control Loops”, IEEE Trans. on Power Systems, vol. 23, no. 4, pp. 1756-1767, 2008.
• H. H. Alhelou, M. H. Golshan, J. Askari-Marnani, “Robust sensor fault detection and isolation scheme for interconnected smart power systems in presence of RER and EVs using unknown input observer”, International Journal of Electrical Power & Energy Systems, doi:10.1016/j.ijepes.2018.02.013, vol. 99, 682-694, 2018.
• S. Gholami, S. Saha, M. Aldeen, “Fault tolerant control of electronically coupled distributed energy resources in microgrid systems”, International Journal of Electrical Power & Energy Systems, 95, 327-340, 2018.
• I. Genc, F. Caliskan, “Robust Actuator Fault Detection and Isolation in a Multi-Area Interconnected Power System”, Proc. the World Congress on Engineering 2011 Vol II, pp. 1394-1398, London, 2011.