Affiliations: [a]
XianYang Vocational Technical College, Xian Yang, China
| [b]
Key Laboratory of Electronic Equipment Structure Design Ministry of Education at Xidian University, Xian, China
| [c]
School of Mechanical and Power Engineering, Henan Polytech University, Jiaozuo, China
Abstract: A novel for an integrated fault and states estimator was proposed for the generalized linear discrete-time system with disturbances. The proposed scheme was based on a Self-Organizing fuzzy Luenberger system to estimate the states and approximate the fault information simultaneously for the generalized linear discrete-time system. For this purpose, a generalized linear discrete-time system with disturbances was transformed into an equivalent standard state-space system with disturbances and faults. Then, the faults and disturbances of generalized linear discrete-time system can be separated with the coordinate transform, meanwhile the Self-Organizing fuzzy Luenberger estimator was designed to obtain the accurate fault information. Based on the obtained fault information, the fault detection experiments were performed, and the fault feature parameters required for fault isolation were determined. Finally, the proposed strategy was applied for a direct current motor to demonstrate the effectiveness of the proposed approach.
Keywords: Self-organizing fuzzy Luenberger method, coordinate transform, faults and disturbances separation, fault detection, generalized linear discrete time system
