A novel nonlinear optimization method for fitting a noisy Gaussian activation function

J Li, F Ding, T Hayat - … Journal of Adaptive Control and Signal …, 2022 - Wiley Online Library
It is significant to fit a Gaussian function with the observation data for artificial intelligence or
other engineering fields. Considering the influence of noises, this article proposes a …

Gradient-based iterative parameter estimation algorithms for dynamical systems from observation data

F Ding, J Pan, A Alsaedi, T Hayat - Mathematics, 2019 - mdpi.com
It is well-known that mathematical models are the basis for system analysis and controller
design. This paper considers the parameter identification problems of stochastic systems by …

Robust DPC-SVM control strategy for shunt active power filter based on H∞ regulators

S Ouchen, H Steinhart, M Benbouzid… - International Journal of …, 2020 - Elsevier
This paper proposes an improved direct power control (DPC) strategy for shunt active power
filter (SAPF). The conventional DPC control suffers from variable switching frequency and …

Surge disturbance suppression of AMB-rotor systems in magnetically suspension centrifugal compressors

X Han, G Liu, B Chen, S Zheng - IEEE Transactions on Control …, 2021 - ieeexplore.ieee.org
Surge is one of the main factors affecting the stability of the centrifugal compressor. This
article investigates surge disturbance suppression of active magnetic bearing (AMB)-rotor …

Design and analysis of second-order sliding mode controller for active magnetic bearing

X Wang, Y Zhang, P Gao - Energies, 2020 - mdpi.com
An active magnetic bearing (AMB) is a kind of high-performance bearing that uses
controllable electromagnetic force to levitate the rotor. Its control performance directly affects …

[PDF][PDF] Optimal parameter estimation for a DC motor using genetic algorithm

MS Amiri, MF Ibrahim, R Ramli - Int. J. Power Electron. Drive Syst, 2020 - academia.edu
Estimating the parameters of a geared DC motor is crucial in terms of its non-linear features.
In this paper, parameters of a geared DC motor are estimated genetically. Mathematical …

Adaptive unbalance compensation for a three-pole active magnetic bearing system

SL Chen, SY Lin, CS Toh - IEEE Transactions on Industrial …, 2019 - ieeexplore.ieee.org
Mass imbalance frequently exists in a rotating machine. It may induce unbalance force,
causing undesirable vibrations and noise. Active magnetic bearing (AMB) has been found to …

Composite velocity-tracking control for flexible gimbal system with multi-frequency-band disturbances

Y Cui, Y Yang, Y Zhu, J Qiao… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In this paper, a composite velocity-tracking control scheme is presented for improving
dynamics response and control accuracy of the flexible gimbal system in the control moment …

Stabilization of active magnetic bearing systems in the case of defective sensors

M Hutterer, M Schroedl - IEEE/ASME Transactions on …, 2021 - ieeexplore.ieee.org
Many control methods for stabilizing magnetically levitated rotors are proposed in literature.
However, most of these systems have in common that the degrees of freedom of the rigid …

Application of second-order sliding-mode concepts to active magnetic bearings

MS Kandil, MR Dubois, LS Bakay… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
Rotor mass imbalance is a common problem to rotating machines due to the unavoidable
imperfections in manufacturing. These imbalance forces can be viewed as harmonic …