Grid-connected photovoltaic inverters: Grid codes, topologies and control techniques

Boscaino, Valeria; Ditta, Vito; Marsala, Giuseppe; Panzavecchia, Nicola; Tinè, Giovanni; Cosentino, Valentina; Cataliotti, Antonio; Di Cara, Dario

doi:10.1016/j.rser.2023.113903

Cited by 13 publications

(1 citation statement)

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“…In addition, DC-DC converters play an important role in controlling the MPPT for the PVG, thereby enhancing their efficiency and output. In the context of this study, we have implemented a simple boost converter to fulfill these objectives (Boscaino et al, 2024;Jana et al, 2017;Blaabjerg, 2017).…”

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Robust line voltage sensor-less control of grid-connected MMC converter in PV Applications

Alia,

Merzouk,

Rezaoui

2024

SEES

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This paper discusses the voltage sensor-less control of a single-phase grid-connected Modular Multilevel Converter (MMC) in photovoltaic (PV) applications. The design of the control system is crucial to efficiently injecting PV power into the main grid. Therefore, three control targets are designed. Maximum power point tracking (MPPT) through the Incremental Conductance (IC) algorithm, DC link voltage regulation, and finally output active and reactive power controlling throughout the regulation of grid current amplitude and phase shift. To achieve those targets, the value of grid voltage has to be known accurately. The main contribution of this study is the use of a Simplified Super Twisting Algorithm Sliding Mode Observer (SSTA-SMO) for grid voltage estimation. The effectiveness and satisfactory performance of the proposed system are validated through simulations via MATLAB. To verify the effectiveness of the proposed approach. A study was conducted to evaluate the efficacy of the SSTA-SMO proposal in comparison to a traditional sliding-mode observer. The objective was to showcase the superiority of the proposed approach. The results suggest that the suggested observer surpasses other methods in terms of several aspects, including minimal errors in grid voltage observation, high-quality estimation of grid voltage, and accurate tracking of the reference. Furthermore, it exhibits robustness when exposed to different levels of radiation.

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confidence: 99%

Robust line voltage sensor-less control of grid-connected MMC converter in PV Applications

Alia,

Merzouk,

Rezaoui

2024

SEES

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Application of Statistical Parameters to Analyse the Performance of PWM Techniques in 3-Level Inverter-Based Compensator for Power Quality Improvement

Agrawal,

Agarwal,

Kanumuri

2024

MAPAN

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An improved model predictive control for linear induction machine drive-based split-source inverters

Hamad,

Xu,

Lotfy

et al. 2024

Discov Appl Sci

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The Split Source Inverter (SSI) is a single-stage DC-AC converter topology widely recognized for its beneficial features compared to the Z-source inverter. These advantages include a reduced number of components, a constant input current, and minimized losses. This study aims to extensively investigate and analyze the operation of a 3 kW Linear Induction Motor (LIM) using SSI through comprehensive simulations. The suggested control approach, employing finite control-model predictive thrust control (FC-MPTC), exhibits remarkable dynamic behavior and achieves a fast transient response without necessitating modifications to the control loop. Moreover, the proposed method allows for the manipulation of multiple variables by utilizing a single cost function, eliminating the need for lookup tables. The efficacy of the proposed control method is validated through comprehensive simulations and experimental tests, which exhibit accurate reference tracking speed and superior dynamic performance in regulating the thrust and primary flux. The results also showed that the proposed method had lower undulations of 5.8% than the traditional method. The proposed approach outperforms the DTC-SVM method under varying load and speed conditions by delivering remarkable accuracy and improved control characteristics.

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Grid-connected photovoltaic inverters: Grid codes, topologies and control techniques

Cited by 13 publications

References 100 publications

Robust line voltage sensor-less control of grid-connected MMC converter in PV Applications

Robust line voltage sensor-less control of grid-connected MMC converter in PV Applications

Application of Statistical Parameters to Analyse the Performance of PWM Techniques in 3-Level Inverter-Based Compensator for Power Quality Improvement

An improved model predictive control for linear induction machine drive-based split-source inverters

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