Robust Output Disturbance, Actuator and Sensor Faults Reconstruction Using H∞ Sliding Mode Descriptor Observer for Uncertain Nonlinear Boiler System
- 36 Downloads
This paper deals with a robust sliding mode descriptor observer for estimation of states and reconstruction of actuator and sensor faults simultaneously in the presence of uncertainties, measurement noise and output disturbances. In the proposed method, the well-known H∞ concepts are used for minimizing the effects of the uncertainty in the estimation of the states and reconstruction of the faults by using the Linear Matrix Inequalities (LMIs). By considering the sensor fault and output disturbance as auxiliary state vectors, an augmented system is established. As a case study, an industrial boiler is considered and the proposed robust observer illustrates the robust performance on estimation of its states and reconstruction of its faults in the presence of uncertainties.
KeywordsDescriptor system fault reconstruction robust sliding mode observer (SMO)
Unable to display preview. Download preview PDF.
- M. Liu, L. Zhang, P. Shi, and H. R. Karimi, “Robust control of stochastic systems against bounded disturbances with application to flight control,” IEEE Transactions on Industrial Electronics, pp. 1504–1516, 2014.Google Scholar
- Z. Wang, M. Rodrigues, D. Theilliol, and Y. Shen, “Actuator fault estimation observer design for discrete-time linear parameter-varying descriptor systems,” International Journal of Adaptive Control and Signal Processing, pp. 1–26, 2013.Google Scholar
- M. Liu, L. Zhang, P. Shi, and H. R. Karimi, “State feedback control against sensor faults for Lipschitz nonlinear systems via new sliding mode observer techniques,” Proc. of the 29th Chinese Control Conference, Beijing, China, 2010.Google Scholar
- K. Mrunalini, P. Kundu, and K. K. Dutta, “State space model for drum boiler system,” IE (I) Journal-EL, pp. 260–266, 2006.Google Scholar