Optimal Output Tracking Control and Stabilization of Networked Control Systems with Packet Losses

Liu, Yue; Han, Chunyan

doi:10.1007/s11424-020-9093-0

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…An automatic track-keeping algorithm was used to track the reference input and avoid overshoot [20]. An optimal output tracking control method deals with packet losses and the infinite-horizon [21]. An H ∞ consensus was considered in an NCS with random packet losses [22].…”

Section: Introductionmentioning

confidence: 99%

An Improved Equivalent-Input-Disturbance Method for Uncertain Networked Control Systems with Packet Losses and Exogenous Disturbances

She

Liu

et al. 2021

Actuators

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In a networked control system (NCS), time delays, uncertainties, packet losses, and exogenous disturbances seriously affect the control performance. To solve these problems, a modified disturbance suppression configuration of NCS was built. In the configuration, a proportional–integral observer (PIO) reproduces the state of a plant and reduces the observation error; an equivalent input disturbance (EID) estimator estimates and compensates for the disturbance in the control input channel. The stability conditions of the NCS are given by using a linear matrix inequality, and the gains of the PIO and state feedback controller are obtained. Numerical simulation results and an application of a magnetic levitation ball system verifies the effectiveness of the presented method. Comparison with the conventional PIO and EID methods shows that the presented method reduced the tracking error to about one-fifth and two-thirds of their original values, respectively. This demonstrates the validity and superiority of the presented method.

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Section: Introductionmentioning

confidence: 99%

An Improved Equivalent-Input-Disturbance Method for Uncertain Networked Control Systems with Packet Losses and Exogenous Disturbances

She

Liu

et al. 2021

Actuators

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Stochastic LQ Control with Extra Measurability Restriction

Wang,

Hu,

et al. 2024

J Syst Sci Complex

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A Modified Disturbance-Rejection Approach in Networked Control Systems Based on Adaptive Model Predictive Control and Equivalent-Input-Disturbance

Li¹,

She²,

Liu³

et al. 2022

JACIII

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This paper presents an adaptive compensation control strategy for packet losses, time delays, and exogenous disturbances in a networked control system. The structure consists of five parts: a plant, a Luenberger observer, an equivalent-input-disturbance (EID) estimator, an adaptive model predictive controller (AMPC), and a network. The AMPC in the local main control room produces an adaptive tracking gain, which can ensure the effective tracking of the reference signal in the presence of uncertainty and time delays in the plant. The EID estimator at the local site compensates for packet losses and exogenous disturbances through an independently designed state observer and a low-pass filter. A practical application case results show the effectiveness of the presented method compared with the conventional EID approach.

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Optimal Output Tracking Control and Stabilization of Networked Control Systems with Packet Losses

Cited by 3 publications

References 20 publications

An Improved Equivalent-Input-Disturbance Method for Uncertain Networked Control Systems with Packet Losses and Exogenous Disturbances

An Improved Equivalent-Input-Disturbance Method for Uncertain Networked Control Systems with Packet Losses and Exogenous Disturbances

Stochastic LQ Control with Extra Measurability Restriction

A Modified Disturbance-Rejection Approach in Networked Control Systems Based on Adaptive Model Predictive Control and Equivalent-Input-Disturbance

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