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Fault Diagnosis and Fault-Tolerant Control in Linear Drives Using the Kalman Filter

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3 Author(s)
Sunan Huang ; Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore ; Kok Kiong Tan ; Tong Heng Lee

In this paper, we consider the fault diagnosis and fault-tolerant problem for a linear drive system subject to system noise. First, we propose a residual generator based on the Kalman filter, which can be used to detect if a failure occurs. Second, two Kalman filters are designed to diagnose the fault type. Third, when a fault is diagnosed, the fault-tolerant control is used to accommodate this failure. Finally, the proposed method is tested in a real linear drive system.

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Industrial Electronics, IEEE Transactions on  (Volume:59 ,  Issue: 11 )