Chattering Free Sliding-Mode Controller Design for Underactuated Tower Cranes With Uncertain Disturbance

Xia, Jiyu; Ouyang, Huimin

doi:10.1109/tie.2023.3281665

Cited by 16 publications

(1 citation statement)

References 38 publications

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“…The following estimator is described by a nonlinear ESO in active disturbance rejection control (ADRC) [27,28]: Then, two elements need to be estimated and two estimators are used. One is designed to estimate the error between the real speed and the speed calculated from the equation, and the other one is designed to estimate the disturbance f mentioned earlier, as shown in Equation (12).…”

Section: Design Of Disturbance Estimator Based On Esomentioning

confidence: 99%

Novel Composite Speed Control of Permanent Magnet Synchronous Motor Using Integral Sliding Mode Approach

Miao,

Yao,

Ouyang

et al. 2023

Mathematics

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Permanent magnet synchronous motors (PMSMs) are widely applied in industry, and proportional integral (PI) controllers are often used to control PMSMs. Aiming at the characteristics of the poor anti-disturbance ability and speed ripple of traditional PI controllers, a novel composite speed controller for PMSMs is proposed in this paper that uses a novel sliding mode control (SMC). To improve the chattering problem of traditional SMC, a high-order approaching law super-twisting algorithm (STA) is applied. Considering the internal and external disturbance of motor driver systems, such as motor parameter drifts and load torque changes, a disturbance estimator based on an extended state observer (ESO) is proposed, and it is used for the feed-forward compensation of the current. The composite super-twisting integral sliding mode controller (ST-ISMC) with a nonlinear ESO is tested by simulations and experiments, and the comparative results verify that the proposed controller has the higher control accuracy, smaller speed ripple and stronger robustness.

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Section: Design Of Disturbance Estimator Based On Esomentioning

confidence: 99%

Novel Composite Speed Control of Permanent Magnet Synchronous Motor Using Integral Sliding Mode Approach

Miao,

Yao,

Ouyang

et al. 2023

Mathematics

Self Cite

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Improved gray prediction parameter identification sliding mode current control of experimental advanced superconducting tokamak fast control power supply

Chen,

Huang,

Wang

2024

Circuit Theory & Apps

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Experimental advanced superconducting tokamak (EAST) fast control power supply (FCPS) is an essential device to realize balance control of plasma vertical displacement during controllable nuclear fusion process. The primary control purpose of EAST FCPS is to quickly output current to track reference current. Change of load inductance parameters due to plasma motion poses higher robustness requirements for fast tracking control of output current. Therefore, an improved gray prediction parameter identification sliding mode control method is proposed to achieve fast tracking and robust control of output current under changes in load inductance parameters. Parameter identification sliding mode control method applied to identify load inductance parameters in real‐time, accurate EAST FCPS output current tracking sliding mode control model is established. High‐order terms are added to discrete exponential convergence reaching law, and a new smooth saturation function is designed to replace traditional sign function to achieve chattering suppression and accelerate system convergence speed. Gray prediction used in current sampling to achieve output current trajectory advanced prediction to further accelerate output current response speed. Four times equal interval time sampling within a fixed switching period and new information priority period by period prediction is proposed to improving gray prediction, achieving digital control delay compensation, and improving prediction accuracy of output current trajectory at abrupt edge. Simulation and experimental verification show that the proposed improved gray prediction parameter identification sliding mode control method has good output current tracking control performance under changes in load parameters. Compared with PI control method currently used in engineering, the proposed control method performs better in output current fast response and overshoot suppression.

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Data-driven discrete learning sliding mode control for overhead cranes suffering from disturbances

Chen,

Shi,

Ouyang

2024

Nonlinear Dyn

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Chattering Free Sliding-Mode Controller Design for Underactuated Tower Cranes With Uncertain Disturbance

Cited by 16 publications

References 38 publications

Novel Composite Speed Control of Permanent Magnet Synchronous Motor Using Integral Sliding Mode Approach

Novel Composite Speed Control of Permanent Magnet Synchronous Motor Using Integral Sliding Mode Approach

Improved gray prediction parameter identification sliding mode current control of experimental advanced superconducting tokamak fast control power supply

Data-driven discrete learning sliding mode control for overhead cranes suffering from disturbances

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