Control Design of LCL Type Grid-Connected Inverter Based on State Feedback Linearization

Yang, Lijun; Feng, Chunchun; Liu, Jianhua

doi:10.3390/electronics8080877

Cited by 7 publications

(3 citation statements)

References 16 publications

(15 reference statements)

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“…Obviously, V is positive definite andV is negative definite, satisfying the Lyapunov stability theorem, so the desired equilibrium point x id is asymptotically stable [50][51][52][53].…”

Section: Asymptotic Stability Analysismentioning

confidence: 98%

Disturbance Observer and L2-Gain-Based State Error Feedback Linearization Control for the Quadruple-Tank Liquid-Level System

Meng

et al. 2020

Energies

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This paper proposes a fresh state error feedback linearization control method with disturbance observer (DOB) and L2 gain for a quadruple-tank liquid-level system. Firstly, in terms of the highly nonlinear and strong coupling characteristics of the quadruple-tank system, a state error feedback linearization technique is employed to design the controller to achieve liquid-level position control and tracking control. Secondly, DOB is purposed to estimate uncertain exogenous disturbances and applied to compensation control. Moreover, an L2-gain disturbance attenuation technology is designed to resolve one class of disturbance problem by uncertain parameter perturbation existing in the quadruple-tank liquid-level system. Finally, compared with the classical proportion integration differentiation (PID) and sliding mode control (SMC) methods, the extensive experimental results validate that the proposed strategy has good position control, tracking control, and disturbance rejection performances.

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“…Obviously, V is positive definite andV is negative definite, satisfying the Lyapunov stability theorem, so the desired equilibrium point x id is asymptotically stable [50][51][52][53].…”

Section: Asymptotic Stability Analysismentioning

confidence: 98%

Disturbance Observer and L2-Gain-Based State Error Feedback Linearization Control for the Quadruple-Tank Liquid-Level System

Meng

et al. 2020

Energies

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show abstract

“…Figure 2a shows the system structure, the variables in dashed box 1 are in the stationary reference frame. The variables in dashed box 2 are in the SRF [24, 25]. Figure 2b shows the coupling characteristic in SRF.…”

Section: Coupling Characteristic Analysismentioning

confidence: 99%

Complete decoupling compensation of three‐phase inverter with LCL filter in synchronous reference frame

Shi

Huang

Zheng

2022

IET Power Electronics

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A decoupling control strategy of three‐phase inverter, which can realize complete decoupling of the active and reactive current in the synchronous reference frame (SRF) is proposed here. There are two coupling factors of current loop in SRF, one is time delay caused by digital control, and the other is AC filter. Dynamic time delay compensation is applied to eliminate coupling caused by the first factor. The phase of the bridge leg voltage can be predicted. The difference between it and the phase of reference voltage which takes part in pulse width modulation (PWM) is the dynamic compensation angle, which can compensate the time delay. High‐order feedforward compensation is applied to eliminate coupling caused by the second factor. Complex vector model of the LCL filter is derived and the high‐order coupling coefficients can be offset by feedforward compensation. The coupling characteristics and compensation principles are analysed in detail. The system stability is discussed. Finally, the simulation and experimental results are given to verify the theoretical analysis.

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“…Current source AC-side clamped inverter for leakage current reduction in grid-connected photovoltaic (PV) system is shown in [10]. A control design of the LCL filter [11] and PWM method [12] for single-phase inverter are carried out. The space vector modulation technique is applied to the quasi-switch boost t-type inverter for common mode voltage elimination [13].…”

Section: The Current Research Trendsmentioning

confidence: 99%

Power Converters in Power Electronics: Current Research Trends

Nguyen

2020

Electronics

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Control Design of LCL Type Grid-Connected Inverter Based on State Feedback Linearization

Cited by 7 publications

References 16 publications

Disturbance Observer and L2-Gain-Based State Error Feedback Linearization Control for the Quadruple-Tank Liquid-Level System

Disturbance Observer and L2-Gain-Based State Error Feedback Linearization Control for the Quadruple-Tank Liquid-Level System

Complete decoupling compensation of three‐phase inverter with LCL filter in synchronous reference frame

Power Converters in Power Electronics: Current Research Trends

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