Three-phase Photovoltaic Systems: Structures, Topologies, and Control

Kerekes, Tamás; Séra, Dezső; Máthé, László

doi:10.1080/15325008.2015.1030518

Cited by 16 publications

(3 citation statements)

References 54 publications

(62 reference statements)

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“…These undesirable features of traditional inverters limit their applications. In addition, these structures do not offer any inherent voltage gain and, therefore, applications that involve low-voltage DC input (such as photovoltaic [PV] systems and electric vehicle [EV] drives) require a front-end DC-DC boost converter or a back-end transformer, thus causing additional losses and costs (Kerekes et al, 2015;Kjaer et al, 2005). In addition to traditional MLIs, hybrid multilevel topologies, e.g.…”

Section: Introductionmentioning

confidence: 99%

Single-source three-phase switched-capacitor-based MLI

Jena¹,

Gupta

Bhatnagar³

et al. 2022

Power Electronics and Drives

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This article proposes a novel three-phase inverter based on the concept of switched capacitors (SCs), which uses a single DC source. A three-phase, seven-level line-to-line output voltage waveform is synthesised by the proposed topology, which includes eight switches, two capacitors, and one diode per phase leg. The proposed topology offers advantages in terms of inherent voltage gain, lower voltage stresses on power switches, and a reduced number of switching components. Additionally, the switched capacitors are self-balanced, thereby eliminating the need for a separate balancing circuit. The proposed structure and its operating principle, the self-balancing mechanism of the capacitors, and the control strategy are all thoroughly explained in the article. The proposed topology has also been compared with some recent SC topologies. Lastly, the proposed topology has been shown to be feasible through simulation and experimentation.

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Section: Introductionmentioning

confidence: 99%

Single-source three-phase switched-capacitor-based MLI

Jena¹,

Gupta

Bhatnagar³

et al. 2022

Power Electronics and Drives

View full text Add to dashboard Cite

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“…Therefore, strong demands to PV systems for high efficiency are always of interest. As a consequence, in order to further extend the efficiency, transformerless PV inverters have gained much popularity like in Germany and Spain, where the penetration degree of PV systems is high [4], [30]- [32]. However, galvanic safety becomes a crucial issue for transformerless systems.…”

Section: Demands To Pv Power Conversion Systemsmentioning

confidence: 99%

Power electronics - the key technology for renewable energy system integration

Blaabjerg

Yang

et al. 2015

2015 International Conference on Renewable Energy Research and Applications (ICRERA)

118

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“…This concept has its foundation from the theory of Fuzzy Sets (FSs) introduced in 1965 by Zadeh and which assigns a degree of membership to the elements of a set in contrast to the classical bivalent logic. As mentioned in [15], FLC has good features like robustness against parameter variations and improved control accuracy.…”

mentioning

confidence: 99%

Power management and control strategies for off-grid hybrid power systems with renewable energies and storage

et al. 2017

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This document is the Accepted Manuscript of the following article: Belkacem Belabbas, Tayeb Allaoui, Mohamed Tadjine, and Mouloud Denai, 'Power management and control strategies for off-grid hybrid power systems with renewable energies and storage', Energy Systems, September 2017. Under embargo. Embargo end date: 19 September 2018. The final publication is available at Springer via https://doi.org/10.1007/s12667-017-0251-y.This paper presents a simulation study of standalone hybrid Distributed Generation Systems (DGS) with Battery Energy Storage System (BESS). The DGS consists of Photovoltaic (PV) panels as Renewable Power Source (RPS), a Diesel Generator (DG) for power buck-up and a BESS to accommodate the surplus of energy, which may be employed in times of poor PV generation. While off-grid DGS represent an efficient and cost-effective energy supply solution particularly to rural and remote areas, fluctuations in voltage and frequency due to load variations, weather conditions (temperature, irradiation) and transmission line short-circuits are major challenges. The paper suggests a hierarchical Power Management (PM) and controller structure to improve the reliability and efficiency of the hybrid DGS. The first layer of the overall control scheme includes a Fuzzy Logic Controller (FLC) to adjust the voltage and frequency at the Point of Common Coupling (PCC) and a Clamping Bridge Circuit (CBC) which regulates the DC bus voltage. A maximum power point tracking (MPPT) controller based on FLC is designed to extract the optimum power from the PV. The second control layer coordinates among PV, DG and BESS to ensure reliable and efficient power supply to the load. MATLAB Simulink is used to implement the overall model of the off-grid DGS and to test the performance of the proposed control scheme which is evaluated in a series of simulations scenarios. The results demonstrated the good performance of the proposed control scheme and effective coordination between the DGS for all the simulation scenarios considered

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Three-phase Photovoltaic Systems: Structures, Topologies, and Control

Cited by 16 publications

References 54 publications

Single-source three-phase switched-capacitor-based MLI

Single-source three-phase switched-capacitor-based MLI

Power electronics - the key technology for renewable energy system integration

Power management and control strategies for off-grid hybrid power systems with renewable energies and storage

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