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Active disturbance rejection based iterative learning control
2016 Chinese Control and Decision Conference (CCDC), 2016The traditional iterative learning control (ILC) algorithm improves the control performance by updating the control input to implicitly compensate the periodic uncertainties. In order to enhance the convergence rate of ILC, a new concept, iterative extended state observer (IESO), is presented which can estimate explicitly the periodic uncertainties ...
Xiangyang Li, Senping Tian, Wei Ai
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Comments on Active Disturbance Rejection Control
IEEE Transactions on Industrial Electronics, 2007This paper presents comments on active disturbance rejection control (ADRC) in four aspects as follows: (1) tracking differentiator; (2) nonlinear combination of proportional, integral, and differential errors; (3) extended state observer; and (4) disturbance rejection. Applications of ADRC are briefly introduced.
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Active disturbance rejection control of refrigeration system
2016 12th World Congress on Intelligent Control and Automation (WCICA), 2016This paper proposes an active disturbance rejection control (ADRC) with a delay time part to control the superheat and evaporator temperature of refrigeration systems. This approach uses static decoupling to realize decoupling control. In order to improve the performance of static decoupling, an extra delay-time element is introduced into the input ...
Hongwu Xue +3 more
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Active Disturbance Rejection Control for Loading System
2020 Chinese Automation Congress (CAC), 2020In this paper, the active disturbance rejection control (ADRC) strategy is proposed for the loading system. The behavior of actual loading system is influenced by a variety of factors including the internal parameters uncertainty and external disturbances, which will be observed by the designed extended state observer (ESO) and compensated by the ...
Xiaonan Han, Zhi Li
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Active Disturbance Rejection Control of Underwater Manipulator
2021In this study, a method of active disturbance rejection controller (ADRC) is presented for 2-DOF underwater manipulator. The ADRC basically does not rely on the accurate mathematical model of the object and can decouple the model. This method can eliminate the influence of model errors, time-varying parameters and external interference on the control ...
Qirong Tang +4 more
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A survey on active disturbance rejection control
2013 International Mutli-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s), 2013The conventional PID controllers have been in existence in the process industry from its very birth for almost a century. The empirical approach of the PID presents a limitation in tuning for practising engineers, since it requires ample experience and a sound knowledge of the plant.
R Parvathy, Asha Elizabeth Daniel
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Active disturbance rejection control for electrical cylinder
2017 36th Chinese Control Conference (CCC), 2017The position tracking control problem of electrical cylinder in the presence of nonlinear friction load, inertia load and nonlinear disturbance due to its transmission process is addressed in this paper. To compensate all of these disturbances in the case of servo motion, active disturbance rejection control is used to make a continuous and precise ...
Hui Peng +4 more
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Active disturbance rejection controller for chemical reactor
AIP Conference Proceedings, 2015In the petrochemical industry, the synthesis of 2 ethyl-hexanol-oxo-alcohols (plasticizers alcohol) is of high importance, being achieved through hydrogenation of 2 ethyl-hexenal inside catalytic trickle bed three-phase reactors. For this type of processes the use of advanced control strategies is suitable due to their nonlinear behavior and extreme ...
Roxana Both +2 more
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Active disturbance rejection control for structural vibration
2014 14th International Conference on Control, Automation and Systems (ICCAS 2014), 2014Construction vibration is a fast responding, multivariable coupled dynamic system. In this paper, an active disturbance rejection control (ADRC) solution is proposed and tested on a certain three-storey building model. The proposed system with a decentralized structure is free from complex decoupling which is hard to practice in actual application ...
null Makeximu +3 more
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Modified active disturbance rejection control for fluidized bed combustor
ISA Transactions, 2020As a widely-used technology, fluidized bed combustor (FBC) boiler is facing many control challenges such as coupling, high-order dynamics and nonlinearity. With more and more sustainable energy integrating into the bulk power system, the FBC boiler is obliged to speed up the respond to the automatic generation control command and this results in great ...
Zhenlong, Wu +5 more
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