A Robust Control of Two-Stage Grid-Tied PV Systems Employing Integral Sliding Mode Theory

Kihal, A.; Krim, Fateh; Talbi, Billel; Laib, Abdelbaset; Sahli, Abdeslem

doi:10.3390/en11102791

Cited by 25 publications

(9 citation statements)

References 39 publications

(68 reference statements)

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“…Sliding Mode Control SMC belongs to a robust control category since it is capable of dealing with parameter uncertainties, the design is simple and it has finite time convergence [100][101][102]. Based on Kihal et al [103], three steps are necessary to achieve a suitable design:…”

Section: Other Techniquesmentioning

confidence: 99%

Maximum Power Point Tracking Techniques for Photovoltaic Panel: A Review and Experimental Applications

et al. 2021

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This article contains a review of essential control techniques for maximum power point tracking (MPPT) to be applied in photovoltaic (PV) panel systems. These devices are distinguished by their capability to transform solar energy into electricity without emissions. Nevertheless, the efficiency can be enhanced provided that a suitable MPPT algorithm is well designed to obtain the maximum performance. From the analyzed MPPT algorithms, four different types were chosen for an experimental evaluation over a commercial PV system linked to a boost converter. As the reference that corresponds to the maximum power is depended on the irradiation and temperature, an artificial neural network (ANN) was used as a reference generator where a high accuracy was achieved based on real data. This was used as a tool for the implementation of sliding mode controller (SMC), fuzzy logic controller (FLC) and model predictive control (MPC). The outcomes allowed different conclusions where each controller has different advantages and disadvantages depending on the various factors related to hardware and software.

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Section: Other Techniquesmentioning

confidence: 99%

Maximum Power Point Tracking Techniques for Photovoltaic Panel: A Review and Experimental Applications

et al. 2021

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“…1. More details and explanations about VO‐MPPT algorithm and Cùk converter can be found in the literature [31–35].…”

Section: Vo‐mppt Algorithm and Dc‐link Voltage Controlmentioning

confidence: 99%

Energy management and power quality enhancement in grid‐tied single‐phase PV system using modified PUC converter

Sahli

Krim

Laib

et al. 2019

IET Renewable Power Generation

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Pack U-Cell (PUC) multi-level inverter is an attractive topology which widely investigated in the past few years for renewable energy conversion systems. This study introduces a modified five-level packed Unit-cell converter (MPUC5) for single-phase double stage grid-tied photovoltaic (PV) system with unity power factor. The proposed system operates as a single-phase active power filter able to compensate reactive power generated by non-linear loads connected to the point of common coupling, feeds the non-linear load by the generated PV power, and injects the extra power into the grid. The MPUC5 inverter has a special topology with two DC-link capacitors and six switches. One DC-link of the inverter is connected to the PV arrays through DC/DC Cùk converter to draw the maximum power. Therefore, finite-control-set model predictive control (FCS-MPC) for such configuration appears as a promising alternative for this inverter to work properly. Where the proposed FCS-MPC algorithm is designed to ensure a high grid current quality, taking into consideration the issue of the capacitor voltages balancing and the switching frequency minimisation. Both simulation results and experimental validation through real-time hardware in the loop system prove the validity and feasibility of the proposed control scheme, regarding PV power management and quality enhancement.

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“…To obtain the optimal exploitation of the PVECS during the change of environmental conditions, a two-stage control strategy is proposed and adopted here [30]. As illustrated in Figure 8, firstly, a PO-based voltage MPPT is used to generate the reference voltage V mpp .…”

Section: Control Of the Dc-dc Converter By Adrcmentioning

confidence: 99%

“…e main aim of the VO-MPPT is to generate the reference voltage V mpp corresponding to the maximum power point. For this purpose, P and O-based V-MPPT [30] technique is utilized due to its featuring effectiveness and simplicity as shown in Figure 9.…”

Section: P and O-based V-mpptmentioning

confidence: 99%

Dynamic Modeling and Robust Control by ADRC of Grid‐Connected Hybrid PV‐Wind Energy Conversion System

Aboudrar

Hani

Heyine

et al. 2019

Mathematical Problems in Engineering

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This work presents linear and nonlinear control strategies applied to a grid-connected multiple-source renewable energy system (wind and photovoltaic), in order to extract the maximum power and to enhance the control of the active and reactive powers. A new robust control strategy known as the active disturbance rejection control (ADRC) is proposed and applied to the hybrid renewable energy system (HRES), and it is based on the extended state observer (ESO) which allows us to estimate the internal and external disturbances such as modeling errors and parameter variations. The studied system consists of two conversion chains which are linked via a common DC bus and interconnected to the grid through a voltage source inverter (VSI); the first chain consists of a PV system and a DC-DC boost converter, and the second chain consists of a direct-driven wind turbine, permanent magnetic synchronous generator (PMSG), and of a AC/DC rectifier converter. The extraction of maximum power from the PV system and the wind energy conversion system is ensured by using the voltage based perturb and observe (VPO) and the optimal torque control (OTC) MPPT techniques, respectively. The ADRC technique is utilized to control the active and reactive powers by acting on the grid currents. In order to verify and validate the effectiveness of the proposed control strategy, a detailed model of the studied system is designed and evaluated under the MATLAB/Simulink software. The simulation results prove the effectiveness of the MPPT techniques in terms of maximum power extraction during the variation in the environmental conditions. Additionally, the regulation of active and reactive powers is ensured by ADRC, and the system is operating at a unity power factor. Moreover, it is demonstrated that the suggested strategy is efficient in terms of fast tracking and robustness to internal and external disturbances compared to the classical PI controller.

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A Robust Control of Two-Stage Grid-Tied PV Systems Employing Integral Sliding Mode Theory

Cited by 25 publications

References 39 publications

Maximum Power Point Tracking Techniques for Photovoltaic Panel: A Review and Experimental Applications

Maximum Power Point Tracking Techniques for Photovoltaic Panel: A Review and Experimental Applications

Energy management and power quality enhancement in grid‐tied single‐phase PV system using modified PUC converter

Dynamic Modeling and Robust Control by ADRC of Grid‐Connected Hybrid PV‐Wind Energy Conversion System

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