Frequency response-based decoupling tuning for feedforward compensation ADRC of distributed parameter systems

Liu, Shaojie; Xue, Wenchao; Shi, Gengjin; Zhu, Min; Li, Donghai

doi:10.1016/j.conengprac.2022.105265

Cited by 21 publications

(7 citation statements)

References 51 publications

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“…The equivalences between PI/PID and eADRC controllers, obtained in Section 3.1, enable the transition of 1DOF eADRC to 2DOF eADRC structure based on the 2DOF PI/PID structure. The obtained decoupling of tuning of tracking and disturbance rejection is a highly desirable property in practice, as recently pointed out in [42,43]. The graphical representation of the proposed transitions between PI/PID and eADRC controllers in the 1DOF and 2DOF cases are shown in Figure 1.…”

Section: Transition From Standard 1dof Eadrc Controller To Strict 2do...mentioning

confidence: 68%

Error-Based Active Disturbance Rejection Altitude/Attitude Control of a Quadrotor UAV

Stanković¹,

Madoński

Manojlović³

et al. 2020

Advances in Intelligent Systems and Computing

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In this paper, we uncover a new connection between standard PI/PID controllers and active disturbance rejection control (ADRC), from which we establish formal conditions of equivalence between the two control schemes. Using the equivalence, we devise a stepby-step procedure of transitioning from PI/PID to error-based ADRC. We also show how to go from 1DOF to 2DOF ADRC while retaining a standard 2DOF PI/PID structure. Both procedures facilitate expressing error-based ADRC schemes as standard industrial 1DOF and 2DOF controllers. This allows the designed controller to have the desired characteristic of ADRC (i.e. strong robustness against internal and external uncertainties) while still being expressed in a form that is familiar to industrial practitioners, where PI/PID structures are still the workhorse of modern control systems. The results of the paper ensure backward compatibility of future ADRC-based solutions and foster the adoption of active disturbance rejection-based methods in industrial practice as a viable alternative to standard controllers. To further support the findings, a set of tests is conducted in time and frequency domain, followed by a comparative analysis in FPGAin-the-loop simulation utilizing a realistic plant model.

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Section: Transition From Standard 1dof Eadrc Controller To Strict 2do...mentioning

confidence: 68%

Error-Based Active Disturbance Rejection Altitude/Attitude Control of a Quadrotor UAV

Stanković¹,

Madoński

Manojlović³

et al. 2020

Advances in Intelligent Systems and Computing

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“…The authors have proposed a short and general tuning procedure for ADRC 21,22 for inner loop tuning of ADRC. It initializes the parameters and iterates through a simple set of rules to find the optimal solution.…”

Section: Tuning Procedures For Bfc-adrcmentioning

confidence: 99%

“…This leads to a problem that the low‐order ADRC has a limited ability to configure the high‐order systems. The main issue is that there is always a significant bias between the closed‐loop dynamics and the desired dynamics, which was initially identified in Reference 21. A natural idea is to provide a novel bias compensation for this bias.…”

Section: Introductionmentioning

confidence: 99%

“…Perhaps we can consider from another perspective why low-order ADRC cannot handle high-order systems with large delay effectively. These studies 21,[33][34][35] reveal that ADRC is a reference model-based control method. ADRC configures the closed-loop system to the reference model, or the desired dynamics, through parameter tuning.…”

mentioning

confidence: 97%

“…The development of linear ADRC 13 substantially aided the industrial use of ADRC. [14][15][16][17] ADRC has been used for a long time to study the control of large inertial systems, 18 such as chemical production process, 19 fully distributed automatic generation control, 20 distributed parameter system, [21][22][23][24] main steam temperature control. 25 In their work, 26 the authors achieved almost feedback-linearization by employing a low-power extended observer.…”

mentioning

confidence: 99%

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Robust compensation for active disturbance rejection control of a class of high‐order systems with large time delay: Simulation and experimental studies

Liu,

Wu,

Dai

et al. 2023

Intl J Robust & Nonlinear

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Rejection of unknown disturbances and uncertainties in high‐order nonlinear systems with large delays is an important control problem. Active disturbance rejection control (ADRC) solves disturbances and uncertainties in a simple and effective way. In engineering, low‐order ADRC is often used to control high‐order large‐delay systems because of its ease of implementation and simplicity of operation. However, this leads to the problem that the low‐order ADRC has a limited ability to configure the high‐order nonlinear systems. The desired dynamics and the closed‐loop dynamics are almost always very biased. For a class of high‐order nonlinear systems with delay, a bias feedback compensation (BFC) approach to ADRC is suggested. This strategy works by adding a feedback loop based on the desired dynamics over the ADRC loop. The BFC strategy can improve the poor performance of low‐order ADRC for higher‐order nonlinear systems. In addition, a synthesis parameter tuning procedure of BFC‐ADRC is proposed in this article. Then, the stability problem is analyzed in this article. Finally, high‐fidelity simulation studies on a 1000 MW power plant for superheater steam temperature control and experiments on three interacting water tanks for level control are performed to verify the tracking, disturbance rejection, and robustness of the control strategy. Both simulation and experiments show that the method is highly robust and significantly improves both disturbance rejection and tracking performance.

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An active disturbance rejection control approach to vibration control on flexible systems based on frequency response

Lin

2024

Adv Control Appl

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Active disturbance rejection control (ADRC) is considerably applied due to its advantage of focusing on merely dominant parameters. Research on flexible systems frequently confronting perplexing disturbances can utilize this method to simplify irrelevant items as a single variable. In this paper, we focused on vibration control problems in flexible systems with the application of ADRC and constructed a second‐order system model under the guideline of fundamental principles of ADRC and an innovative algorithm for tuning feedforward compensation ADRC. During the simulation, we discussed three cases in which each solely one parameter varies while others are kept invariant. Time, open‐loop frequency, and close‐loop frequency responses were respectively analyzed in all cases as to determine the stability of the system. According to the simulation results, we arrived at the conclusion: we should choose the specification of a flexible system within an intermediate range and evade from critical system parameters to procure stability and efficiency.

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Frequency response-based decoupling tuning for feedforward compensation ADRC of distributed parameter systems

Cited by 21 publications

References 51 publications

Error-Based Active Disturbance Rejection Altitude/Attitude Control of a Quadrotor UAV

Error-Based Active Disturbance Rejection Altitude/Attitude Control of a Quadrotor UAV

Robust compensation for active disturbance rejection control of a class of high‐order systems with large time delay: Simulation and experimental studies

An active disturbance rejection control approach to vibration control on flexible systems based on frequency response

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