Abstract In this paper, we study the stabilization problem of a disk beam structure with disturbance. Specifically, consists clamped at one end to center rotating rigid disk, while other is attached tip mass subject non-uniform bounded We start investigation by designing controller via Active disturbance rejection control (ADRC) approach. The high gain extended state observer (ESO) first design...

One of the principal objectives of vibration isolation technology is to isolate sensitive equipment from a vibrating structure or to isolate the structure from an uncertain exogenous disturbance source. In this paper, a dynamic observer-based active isolator is proposed that guarantees closed-loop asymptotic stability and disturbance decoupling between the vibrating structure and isolated struc...

In this work, the robust position control scheme is proposed for the electro-mechanical system using the disturbance observer and backstepping control method. To the external unknown load of the electro-mechanical system, the nonlinear disturbance observer is given to estimate the external unknown load. Combining the output of the developed nonlinear disturbance observer with backstepping techn...

Disturbance observer based robot control algorithms provide good control performance while giving a straightforward method of gain selection. Unfortunately, the stability of these algorithms has not been shown rigorously for nonlinear systems such as robots. This paper demonstrates that a disturbance observer based algorithm can be made equivalent to the well-known passivity-based approaches of...

In this study, a tele-aiming control system for reconnaissance robots is proposed, capable of enabling operators to quickly the robot aim at and track manoeuvring target with random motion characteristics under measurement noise. To such targets, cascaded multi-model super-twisting observer designed. First, uncertainty inertial impact force disturbance generated during rapid are expanded into l...

The research on high-performance vector control of permanent magnet synchronous motor (PMSM) drive system plays an extremely important role in electrical system. To further improve the speed performance system, a fast non-singular end sliding mode (FNTSM) surface function based traditional NTSM is developed. theoretical analysis proves that FNTSM has faster dynamic response and more finite-time...

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 to synthesize a robust fault detection observer by means of a mixed H =H1 performance index. The considered observer is used to estimate jointly states and faults. Using the...