Tracking Control of Single-Axis Feed Drives Based on ADRC and Feedback Linearisation

Yuan, Meng; Xu, Zhezhuang

doi:10.3390/electronics10101184

Cited by 2 publications

(2 citation statements)

References 36 publications

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“…The ADRC, proposed by Han [16], as a nonlinear control method with superior performance, are preferred for a wide application in industrial technical fields [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…The results show that when the input gain is multiplied by a positive factor less than a certain threshold, the closed-loop system remains stable and the tracking error is reduced. For the purpose of improving the tracking accuracy of servo system effectively, an ADRC and feedback linearization-based control algorithm for the high-precision trajectory tracking is analyzed in [21].…”

Section: Introductionmentioning

confidence: 99%

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Improved Active Disturbance Rejection Control of Dual-Axis Servo Tracking Turntable with Friction Observer

Zhang

Wang

et al. 2021

Electronics

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Friction nonlinear disturbance is one of the main factors affecting the control performance of servo tracking system. In this paper, an improved Active Disturbance Rejection Control (ADRC) scheme of dual-axis servo turntable is researched to achieve accurate tracking. Firstly, the mathematical dynamics model of dual-axis servo tracking turntable system is established. The Elastoplastic model is used to describe nonlinear friction, in which the immeasurable part is extended to be a new state. Secondly, considering the smooth and monotonic increasing property of hyperbolic tangent function, an improved tracking differentiator is introduced, which can provide better noise attenuation performance. Thirdly, based on adjustable parameter systematic pole placement method, the fuzzy control algorithm is applied to realize the intelligent tuning of the improved Extended State Observer (ESO) gains, in which the input of the fuzzy controller is the estimation error, while the output is the observer bandwidth. Finally, the improved ADRC system is transformed into a Lurie system, then the extended circle criteria are adopted to analyze the absolute stability of the proposed system. Simulation and experimental verification of the improved ADRC method for the dual-axis turntable tracking servo system are conducted. Results illustrate the effectiveness and robustness of the proposed controller.

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“…The ADRC, proposed by Han [16], as a nonlinear control method with superior performance, are preferred for a wide application in industrial technical fields [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improved Active Disturbance Rejection Control of Dual-Axis Servo Tracking Turntable with Friction Observer

Zhang

Wang

et al. 2021

Electronics

View full text Add to dashboard Cite

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Linear Active Disturbance Rejection Control for a Laser Powder Bed Fusion Additive Manufacturing Process

Hussain

Kausar²,

Koreshi³

et al. 2023

Electronics

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Functional metal parts with complicated geometry and internal features for the aerospace and automotive industries can be created using the laser powder bed fusion additive manufacturing (AM) technique. However, the lack of uniform quality of the produced parts in terms of strength limits its enormous potential for general adoption in industries. Most of the defects in selective laser melting (SLM) parts are associated with a nonuniform melt pool size. The melt pool area may fluctuate in spite of constant SLM processing parameters, like laser power, laser speed, hatching distance, and layer thickness. This is due to heat accumulation in the current track from previously scanned tracks in the current layer. The feedback control strategy is a promising tool for maintaining the melt pool dimensions. In this study, a dynamic model of the melt pool cross-sectional area is considered. The model is based on the energy balance of lumped melt pool parameters. Energy coming from previously scanned tracks is considered a source of disturbance for the current melt pool cross-section area in the control algorithm. To track the reference melt pool area and manage the disturbances and uncertainties, a linear active disturbance rejection control (LADRC) strategy is considered. The LADRC control technique is more successful in terms of rapid reference tracking and disturbance rejection when compared to the conventional PID controller. The simulation study shows that an LADRC control strategy presents a 65% faster time response than the PID, a 97% reduction in the steady state error, and a 98% reduction in overshoot. The integral time absolute error (ITAE) performance index shows 95% improvement for reference tracking of the melt pool area in SLM. In terms of reference tracking and robustness, LADRC outperforms the PID controller and ensures that the melt pool size remains constant.

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Tracking Control of Single-Axis Feed Drives Based on ADRC and Feedback Linearisation

Cited by 2 publications

References 36 publications

Improved Active Disturbance Rejection Control of Dual-Axis Servo Tracking Turntable with Friction Observer

Improved Active Disturbance Rejection Control of Dual-Axis Servo Tracking Turntable with Friction Observer

Linear Active Disturbance Rejection Control for a Laser Powder Bed Fusion Additive Manufacturing Process

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