Double-Loop Stability for High Frequency Networked Control Systems Subject to Actuator Saturation

Yang, Hongjiu; Li, Peng; Xia, Yuanqing; Yan, Ce

doi:10.1109/tcyb.2018.2804340

Cited by 17 publications

(4 citation statements)

References 37 publications

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“…PI control is the most commonly used control method for photovoltaic grid-connected inverter to track the power-grid current, but its ability to suppress low-order harmonics is weak. The above derivation and verification process can be concluded that the whole controller u t_c is composed of PI controller u c and a feedforward compensator u s , which is used to compensate the nonlinear power-grid voltage perturbation, as shown in (13). In this paper, an additional compensation mechanism is added to improve the performance of the grid-connected current.…”

Section: B Controller Designmentioning

confidence: 99%

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Research on Synchronous Control Method for Suppressing Nonlinear Impulse Perturbation of Photovoltaic Grid-Connected Inverter

et al. 2020

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In this paper, the synchronous control problem of photovoltaic grid-connected inverter with nonlinear impulse perturbation is studied. The mathematical model of photovoltaic grid-connected converter is established by using Kirchhoff's law. The nonlinear impulse perturbation characteristics of grid-connected current are studied and analyzed. Controllers are designed to suppress nonlinear impulse perturbation. The effectiveness of the controller is verified by Lyapunov stability theory. Finally, the simulation design is carried out by simulink in Matlab and the test platform is constructed. In this paper, simulation verification and data comparison are carried out by using various control methods for suppressing nonlinear impulse perturbation of grid-connected currents. Compared with PI controller, PR controller and other controller, the output harmonic content of photovoltaic inverter can be controlled within 1%, which can effectively reduce the harmonic content. The power quality of grid-connected current is improved. The feasibility and effectiveness of the control strategy proposed are verified by simulation and experiments. INDEX TERMS Nonlinear impulse perturbation, harmonic content, Lyapunov stability, photovoltaic inverter.

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Section: B Controller Designmentioning

confidence: 99%

“…The combined control method can reduce the steady-state error of the system and has good robustness. The logic block diagram of the controller can be obtained from (12), (13), (14), (19) and (29). Fig.4 is a Block diagram of current impulsive perturbation control model for grid-connected inverters.…”

Section: B Controller Designmentioning

confidence: 99%

Research on Synchronous Control Method for Suppressing Nonlinear Impulse Perturbation of Photovoltaic Grid-Connected Inverter

et al. 2020

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“…Several results have emerged by solving problems of global stabilization, semi-stabilization, and regional stability stabilization (see, among others, Chen and Wang, 2021;Du et al, 2018;Hu and Lin, 2001;Qiang and Zhang, 2018). Yang et al (2019) designed a double-loop feedback control for the high-frequency networked control system with actuator saturation. Yu et al (2010) proposed a feedback control method for the switched system with the actuator saturation .…”

Section: Introductionmentioning

confidence: 99%

Dynamic event-triggered control for linear systems subject to asymmetric actuator saturation

Zhang

Deng

2021

Transactions of the Institute of Measurement and Control

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This paper investigates dynamic event-triggered control for systems subject to asymmetric actuator saturation. The asymmetric saturation could severely degrade the performance of systems, which always exists in control engineering. A dynamic event-triggered scheme considering the character of asymmetric saturation is proposed to reduce triggered number of events, under the premise that the closed-loop system subject to asymmetric actuator saturation is asymptotically stabilized. Sufficient conditions are derived to stabilize the system and the minimum inter-event time interval is calculated to exclude Zeno behaviour. An optimization problem is solved to estimate the contractive invariant set as the stable region of the system. A numerical example is given to illustrate the theoretical results.

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“…Existing researches studied how the operating frequency effects on robust control and signal stability of NCSs [20,21]. However, at the best of our knowledge, there is no direct research about how operating frequency effects on the NCS's reliability.…”

Section: Introductionmentioning

confidence: 99%

Reliability Analysis of Networked Control Systems with the Consideration of Operating Frequency

Guo

2021

Int. J. Control Autom. Syst.

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The operating frequency of the networked control system (NCS) determines both its control performance and heat flux density. Considering the significant effect of thermal stress on the reliability of electronics, a quantitative reliability analysis framework is proposed for NCSs with the consideration of its operating frequency. It includes 5 main steps: 1) Compute the power consumption of all its electronic components using circuit simulation; 2) obtain the thermal stress of these components by thermal simulation; 3) apply the thermal stress results to assess the reliability of components using the part stress analysis method; 4) calculate the reliability of the modules using reliability block diagrams; and 5) quantify the reliability of the NCS by combining the graph reduction method and other network reliability algorithms together. A double loop networked control system is used as an example to verify the effectiveness of our method.

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Double-Loop Stability for High Frequency Networked Control Systems Subject to Actuator Saturation

Cited by 17 publications

References 37 publications

Research on Synchronous Control Method for Suppressing Nonlinear Impulse Perturbation of Photovoltaic Grid-Connected Inverter

Research on Synchronous Control Method for Suppressing Nonlinear Impulse Perturbation of Photovoltaic Grid-Connected Inverter

Dynamic event-triggered control for linear systems subject to asymmetric actuator saturation

Reliability Analysis of Networked Control Systems with the Consideration of Operating Frequency

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