Multi‐objective H − ∕ H ∞ fault detection observer design for Takagi–Sugeno fuzzy systems with unmeasurable premise variables: descriptor approach

摘要: This paper investigates the problem of robust fault detection observer design for nonlinear Takagi-Sugeno models with unmeasurable premise variables subject to sensor faults and unknown bounded disturbance. The main idea is synthesize a by means mixed H =H1 performance index. considered used estimate jointly states faults. Using technique descriptor system representation, we proposed new less-conservative approach in term linear matrix inequality (LMI) considering as an auxiliary state variable. A solution obtained using iterative LMI procedure.