Application of observer-based sliding mode controller in dynamic positioning systems

Hosseinnajad, Alireza; Danesh, Mohammad; Loueipour, Mehdi

doi:10.1109/icciautom.2017.8258685

Cited by 5 publications

(1 citation statement)

References 12 publications

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“…Modern real-world systems are generally characterized by complicated nonlinear and multi-variable dynamics with various uncertainties such as parametric perturbations, unmodeled dynamics, measurement noises, linearization and approximation errors, and external disturbances. 1 For example, see vessel dynamic positioning system, 2 robot manipulator, 3 DC-DC power converter, 4 missile system, 5 spacecraft, 6 permanent magnet synchronous motor (PMSM), 7 hard-disk drive, 8 magnetic levitation (MAGLEV) suspension transportation vehicle, 9,10 and many more practical systems. These uncompensated uncertainties need to be treated properly otherwise they may become detrimental to the desired control performances which could further lead to system instability.…”

Section: Introductionmentioning

confidence: 99%

A homogeneous extended state estimator-based super-twisting sliding mode compensator for matched and unmatched uncertainties

Goel

Mobayen

Fekih

2020

Measurement and Control

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In this research work, an output tracking problem of a kind of nonlinear motion control systems influenced by exogenous uncertainties using second-order super-twisting sliding mode control is studied. It is shown that when second-order super-twisting sliding mode control is implemented with finite-time convergent homogeneous extended state observer, the second-order sliding mode is achieved on the selected sliding manifold with efficient disturbance attenuation from the output. The presented control structure is tested on the air-gap control of an electromagnetic levitation suspension system using MATLAB platform. The observations prove the efficacy of the proposed algorithm providing excellent robust control efficiency along with precise attenuation of various disturbances.

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