ADRC With Adaptive Extended State Observer and its Application to Air–Fuel Ratio Control in Gasoline Engines

Xue, Wenchao; Bai, Wei; Yang, Suo; Song, Kyung‐Sik; Huang, Yi; Xie, Hui

doi:10.1109/tie.2015.2435004

Cited by 326 publications

(171 citation statements)

References 32 publications

Supporting

Mentioning

166

Contrasting

Unclassified

Order By: Relevance

“…Such superiority has been demonstrated by many engineering applications like in Yao et al 43,44 and Xue et al 45 Especially in Yao et al, 43 a linear type of ESO 46 was incorporated with a nonlinear robust controller via backstepping method to derive an output feedback robust controller for a hydraulic system. The first closed loop stability analysis associated with ESO-based nonlinear controllers was presented to verify the prescribed tracking performance.…”

Section: Introductionmentioning

confidence: 99%

Time‐varying input delay compensation for nonlinear systems with additive disturbance: An output feedback approach

Deng

Yao

2017

Intl J Robust & Nonlinear

118

View full text Add to dashboard Cite

SummaryThis paper addresses the output feedback tracking control of a class of multipleinput and multiple-output nonlinear systems subject to time-varying input delay and additive bounded disturbances. Based on the backstepping design approach, an output feedback robust controller is proposed by integrating an extended state observer and a novel robust controller, which uses a desired trajectory-based feedforward term to achieve an improved model compensation and a robust delay compensation feedback term based on the finite integral of the past control values to compensate for the time-varying input delay. The extended state observer can simultaneously estimate the unmeasurable system states and the additive disturbances only with the output measurement and delayed control input. The proposed controller theoretically guarantees prescribed transient performance and steady-state tracking accuracy in spite of the presence of time-varying input delay and additive bounded disturbances based on Lyapunov stability analysis by using a LyapunovKrasovskii functional. A specific study on a 2-link robot manipulator is performed; based on the system model and the proposed design procedure, a suitable controller is developed, and comparative simulation results are obtained to demonstrate the effectiveness of the developed control scheme. | INTRODUCTIONTime delay that includes state delay and input delay is a pervasive phenomenon encountered in many practical engineering applications such as robotic systems, electrical networks, and hydraulic actuation systems. The existence of time delay may result in unexpected degradation in control performance and even instability. 1 Hence, how to effectively attenuate the effect of time delay has always been the research hotspot during the latest several decades, with numerous control schemes proposed, such as previous studies 2-12 for input delay and other studies [13][14][15][16][17][18] for state delay. Especially in Sun et al 17 and Sun and Liu, 18 stabilization of high-order uncertain nonlinear systems with state delays were investigated by using adaptive approach. 19,20 This paper focuses on the problem of input delay, ie, the time delay that occurs between the control input and the plant. Specifically, predictor-based techniques such as Artstein model reduction 2 and finite spectrum assignment, 3 which originate from classic Smith predictor method, 4 are typically exploited to compensate for the input delay. The core design in these predictor-based approaches is to transform the delayed system to a delay free one by using finite integrals over past control values. 21 In addition, many predictive controllers have also been synthesized based on the fact that the input delayed systems can be modeled as

show abstract

Section: Introductionmentioning

confidence: 99%

Time‐varying input delay compensation for nonlinear systems with additive disturbance: An output feedback approach

Deng

Yao

2017

Intl J Robust & Nonlinear

118

View full text Add to dashboard Cite

show abstract

“…The adaptive extended state observer (AESO) is proposed for the nonlinear systems with the uncertainties both in the plant and in the sensor [30]. The gain of ESO is automatically timely tuned to reduce the estimation errors of both states and "total disturbance" against the measurement noise.…”

Section: System Reconstitution Via Aesomentioning

confidence: 99%

“…The gain of ESO is automatically timely tuned to reduce the estimation errors of both states and "total disturbance" against the measurement noise. The theory of AESO can be briefly described as follows [30]. Consider the following class of nonlinear uncertain continuous systems with measurement noise.…”

Section: System Reconstitution Via Aesomentioning

confidence: 99%

“…shows the formulas and the properties of the estimation error ξ ih Lemma 1 [30]. Let A1-A3 hold, and the AESO for the general integral serial system is given aŝ…”

Section: International Journal Of Aerospace Engineeringmentioning

confidence: 99%

“…It has shown its fast finite time convergence, strong robustness, and preferable ability to handle the uncertainties and external disturbances. Besides, the adaptive extended state observer (AESO) [30], which possesses the excellent ability of state estimation and noise filtering, is proposed for a class of nonlinear systems with uncertain dynamics and sensor measurement noise. The gain of extended state observer (ESO) is automatically timely tuned to reduce the estimation errors of both states and "total disturbance" against the measurement noise.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Antidisturbance Vibration Suppression of the Aerial Refueling Hose during the Coupling Process

Wang

2017

International Journal of Aerospace Engineering

View full text Add to dashboard Cite

In autonomous aerial refueling (AAR), the vibration of the flexible refueling hose caused by the receiver aircraft's excessive closure speed should be suppressed once it appears. This paper proposed an active control strategy based on the permanent magnet synchronous motor (PMSM) angular control for the timely and accurate vibration suppression of the flexible refueling hose. A nonsingular fast terminal sliding-mode (NFTSM) control scheme with adaptive extended state observer (AESO) is proposed for PMSM take-up system under multiple disturbances. The states and the "total disturbance" of the PMSM system are firstly reconstituted using the AESO under the uncertainties and measurement noise. Then, a faster sliding variable with tracking error exponential term is proposed together with a special designed reaching law to enhance the global convergence speed and precision of the controller. The proposed control scheme provides a more comprehensive solution to rapidly suppress the flexible refueling hose vibration in AAR. Compared to other methods, the scheme can suppress the flexible hose vibration more fleetly and accurately even when the system is exposed to multiple disturbances and measurement noise. Simulation results show that the proposed scheme is competitive in accuracy, global rapidity, and robustness.

show abstract

Modified linear active disturbance rejection control for microgrid inverters: Design, analysis, and hardware implementation

Zeng

Huang

et al. 2019

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

Summary Microgrid inverters are characterized by nonlinearities, strong coupling, and switching flexibility, by which traditional proportional‐integral control is inadequate to realize a satisfactory control performance due to its local linearization. This paper attempts to design a modified linear active disturbance rejection control (MLADRC) for voltage control of microgrid inverters. Under the framework of extended state observer, voltage error derivative is obtained indirectly by the measurement of filter capacitor current, such that the observation performance of extended state observer could be significantly improved. Furthermore, a first‐order inertial link is employed in the perturbation loop to effectively suppress observation noises. A thorough frequency response analysis of MLADRC, linear active disturbance rejection control, and proportional‐integral control is undertaken, which shows that MLADRC owns superior disturbance rejection performance than that of others. Lastly, hardware experiment validates the effectiveness and implementation feasibility of MLADRC.

show abstract

ADRC With Adaptive Extended State Observer and its Application to Air–Fuel Ratio Control in Gasoline Engines

Cited by 326 publications

References 32 publications

Time‐varying input delay compensation for nonlinear systems with additive disturbance: An output feedback approach

Time‐varying input delay compensation for nonlinear systems with additive disturbance: An output feedback approach

Antidisturbance Vibration Suppression of the Aerial Refueling Hose during the Coupling Process

Modified linear active disturbance rejection control for microgrid inverters: Design, analysis, and hardware implementation

Contact Info

Product

Resources

About