Adaptive LADRC-Based Disturbance Rejection Method for Electromechanical Servo System

Liu, Chunqiang; Luo, Guangzhao; Duan, Xiaoli; Chen, Zhe; Zhang, Zeliang; Qiu, Cai

doi:10.1109/tia.2019.2955664

Cited by 125 publications

(35 citation statements)

References 21 publications

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“…But there is no performance indicator to evaluate the result. Liu et al [27] (2020) proposed an adaptive linear active disturbance rejection control (LADRC) controller to reduce the difficulty of parameter tuning. the number of tuning parameters of LADRC was also reduced to two by a pole placement design.…”

Section: Introductionmentioning

confidence: 99%

Adaptive LADRC Parameter Optimization in Magnetic Levitation

et al. 2021

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In this study, an adaptive linear active disturbance rejection control is proposed to achieve steady levitation of the magnetic levitation ball.The proposed algorithm was designed and its convergence was proven via derivation. It can address the difficulty in parameter tuning of the controller and realize the real-time self-adaptive optimization of parameters. Besides,to verify the effectiveness of the proposed parameter tuning strategy,we analysed the anti-interference ability and tracking effects of SMC, LADRC and A-LADRC in different cases. Finally, the results showed that the anti-interference ability of A-LADRC is stronger than SMC and LADRC. In addition,the anti-interference effect intensifies when the interference increases. The designed controller also performs the best tracking performance among these three controllers. Therefore, A-LADRC exhibits better robustness and dynamic performance.

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Section: Introductionmentioning

confidence: 99%

Adaptive LADRC Parameter Optimization in Magnetic Levitation

et al. 2021

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“…Linear active disturbance rejection control (LADRC) is proposed by Prof. Han Jingqing which is originated from the idea: that any control system can be transformed into a series integral standard type through feedback [42,43]. LADRC solves many control problems by its good immunity and stable static performance [44][45][46][47][48][49][50]. In particular applications, such as high-temperature molten metal transportation, the control system needs to meet the following objectives: 1) The maximum swing angle should be strict limited and be as small as possible.…”

Section: Introductionmentioning

confidence: 99%

Linear Active Disturbance Rejection Control for Double-Pendulum Overhead Cranes

et al. 2021

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Because of the complexity, non-linearity, and under-actuated features of double pendulum overhead cranes, a control method based on linear active disturbance rejection control (LADRC) and differential flatness theory is proposed to realize accurate trolley positioning and effective swing eliminating. Specifically, in order to simplify the system model, we introduce the differential flatness theory to construct system output. Based on this method, the uncertainty and system external disturbance become total disturbance. The control method of the crane is designed according to LADRC. Then, we use the bird swarm algorithm (BSA) to optimize controller's parameters. Finally, the double-pendulum crane control method based on the LADRC can better accomplish the crane's anti-swing and location in the real environment according to simulation and experimental results, which confirms its effectiveness and robustness in existing system.

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“…ADRC with FNTSMC is developed in [32], which retains the merits of the ADRC of antidisturbance and the FNTSMC with fast convergence speed. Moreover, instead of traditional cascade structure, the parallel structure in position and speed loop is one of the most practical ways to improve dynamic responses [33]. e overall structure of shipborne rocket launcher system is shown in Figure 1, where STM32 microcontroller uses C programming language to simulate the position loop and speed loop control.…”

Section: Introductionmentioning

confidence: 99%

A Novel Active Disturbance Rejection Control with a Super‐Twisting Observer for the Rocket Launcher Servo System

Shi

Hou

et al. 2021

Shock and Vibration

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In this paper, a novel active disturbance rejection control (NADRC) with a super-twisting extended state observer (SESO) is utilized in the rocket launcher servo system. The main arguments in the shipborne rocket launcher system are control accuracy and antidisturbance ability, which are closely related to phase delay and bandwidth. Firstly, we use Taylor’s formula approach to compensate the phase delay in traditional tracking differentiator (TD). Secondly, we design the parallel structured SESO to improve the observation bandwidth, so that it can estimate states with desired accuracy in NADRC. Finally, sinusoidal simulation results show Taylor’s formula-based TD can suppress noise and compensate phase delays effectively. In comparison with traditional ADRC, the proposed NADRC is shown to have better tracking performance and stronger robustness. Semiphysical experiments are conducted to prove the feasibility of NADRC.

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Adaptive LADRC-Based Disturbance Rejection Method for Electromechanical Servo System

Cited by 125 publications

References 21 publications

Adaptive LADRC Parameter Optimization in Magnetic Levitation

Adaptive LADRC Parameter Optimization in Magnetic Levitation

Linear Active Disturbance Rejection Control for Double-Pendulum Overhead Cranes

A Novel Active Disturbance Rejection Control with a Super‐Twisting Observer for the Rocket Launcher Servo System

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