Nonlinear robust controller design for a grid-connected PV system using DPC approach

Roy, T. K.; Pervej, M. F.; Sarkar, M. I.; Tumpa, F. K.

doi:10.1109/ecace.2017.7912870

Cited by 6 publications

(2 citation statements)

References 19 publications

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“…While, its main issue is the high sensitivity to system's parameter variation and slow transient response. Another investigation developed by Roy et al (2017), Mahdhi et al (2017) was shown direct power control (DPC) based on the nonlinear hysteresis scheme, which consists of selecting the converter switching states directly via a switching table. Despite the fact that this technique provides robustness against parameters changes and fast dynamic response, the major problems are their higher current harmonic caused by the variable switching frequency operation, which decrease the inverter's performances.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Chopper-Inverter Performances for Wind Conversion System Connected to Grid

Laabidi

Jouini

Mami

2021

WJE

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Purpose The purpose of this paper is to propose an efficient current control technique based on model predictive control (MPC) for grid-connected wind conversion system. This nonlinear strategy is applied for the chopper circuit and grid-tied inverter and compared with other two conventional schemes; a traditional proportional-integral (PI) and sliding mode controller (SMC) using the same switching frequency. Design/methodology/approach Firstly, the MPC scheme uses the mathematical model to predict future behaviors of the controlled converter outputs for possible switching states. After that, the optimal voltage vector is selected by minimizing a cost function, which is defined as a sum of the absolute values of the controlled current errors. Then, the corresponding switching signals are applied to the converter switches in the next sampling period to track correctly the reference current. Thus, the MPC scheme ensures a minimal error between the predicted and reference trajectories of the considered variables. Findings The MPC-based algorithm presents several benefits in terms of high accuracy control, reduced DC-link voltage ripples during steady-state operation, faster transient response, lower overshoots and disturbance rejection and acceptable total harmonic distortion. Originality/value The authors introduce several simulation case studies, using PSIM software package, which prove the reliability and effectiveness of the proposed MPC scheme. Therefore, the MPC performances, during dynamic and steady-state condition, are compared with those obtained by a PI regulator and SMC to highlight the improvements, specifically the transfer of smooth power to the grid.

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Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Chopper-Inverter Performances for Wind Conversion System Connected to Grid

Laabidi

Jouini

Mami

2021

WJE

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“…It is necessary to analyze the PV modules for energy output characteristics because of the mismatch losses and shading losses of such structures. PV system studies are divided into two in general as grid connected [7][8] and islanded or standalone [9][10] modes of operation. In addition, researchers are focused on the various types of motors as loads for PV systems.…”

Section: Introductionmentioning

confidence: 99%

Implementation and Performance Analysis of a Switched Reluctance Motor Fed from Non-Energy Stored PV System

Efe

Kocaman

Aktaş

2018

Balkan Journal of Electrical and Computer Engineering

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In this paper, an actual system that consist of a switched reluctance motor (SRM) and photovoltaic (PV) generation was analyzed to determine operational behaviors in terms of both generating and motor units. System was designed without an energy storage unit. This type of design allows obtaining more convergence and actual results during operation in different conditions. According to this aim, a system that includes such structures was constructed physically. System was operated and observed for different weather and loading conditions. As the proposed system was aimed to use for agricultural electrical vehicle applications, results were discussed by using graphs that obtained from various points, especially in terms of these approaches.

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Robust Nonlinear Double Integral Sliding Mode Controller Design for Mitigating SSR in DFIG-Based Wind Farms

Faria¹,

Roy²,

Khatun³

et al. 2021

2021 International Conference on Automation, Control and Mechatronics for Industry 4.0 (ACMI)

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Nonlinear robust controller design for a grid-connected PV system using DPC approach

Cited by 6 publications

References 19 publications

Comparative Analysis of Chopper-Inverter Performances for Wind Conversion System Connected to Grid

Comparative Analysis of Chopper-Inverter Performances for Wind Conversion System Connected to Grid

Implementation and Performance Analysis of a Switched Reluctance Motor Fed from Non-Energy Stored PV System

Robust Nonlinear Double Integral Sliding Mode Controller Design for Mitigating SSR in DFIG-Based Wind Farms

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