This paper presents a new approach to the design of a robust observer-based fault detection scheme for diagnosing incipient faults, called H∞ robust fault detection observer (RFDO). It takes into account the robustness of the fault detection observer against disturbances and sensitivity to faults simultaneously. The approach has originated from the robust H∞ estimator which minimizes the effect...

Abstract: This paper is to develop an optimal electro-hydraulic dual-shaking table system with high waveform replication precision. The parameters of hydraulic cylinders, servo valves, hydraulic supply power and gravity balance system are designed and optimized in detail. To improve synchronization and tracking control precision, a hybrid control strategy is proposed. The cross-coupled control ...

High-precision positioning of laser beams has been a great challenge in industry due to inevitable existence of noise and disturbance. The work presented in this study addresses this problem by employing two different control strategies: Proportional Integral Derivative (PID) control and state feedback control with an observer. The control strategies are intended to stabilize the position of a ...

This article investigates the multirate disturbance rejection control problem for linear systems with mismatched and measurement delay using predictor-based extended state observer. A new observer together output predictor is first designed to obtain estimation values of system disturbance, where used compensate influences sampling output. To attenuate undesirable influence we then design a sam...