High-gain DC-DC converter with current source characteristics at the output for applications in photovoltaic systems and current injection in nanogrids

Araújo, Francilino Carneiro de; Vasconcelos, Manuel O.; Aragão, Francisco Aldinei Pereira; Souza, Kleber C. A. De; Edilson, M.

doi:10.1109/pedg.2017.7972485

Cited by 4 publications

(12 citation statements)

References 18 publications

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“…However, in order to simplify the calculatings, the secondary leakage inductance LKS influence on static gain can be disconsidering. The coupling fator k can be defined [9]:…”

Section: Static Gainmentioning

confidence: 99%

“…L KP = /k = 0.987 Table II presents a comparison of the proposed converter with the topologies presented in [9], [18], [40], [41]. Some criteria were considered to select the converters in table II: drive complexity, number of components, photovoltaic applications, high voltage gain and high efficiency.…”

Section: Static Gainmentioning

confidence: 99%

“…By definition, a DC nanogrid is a DC distribution system where one or more DC energy sources, e.g., photovoltaic modules, fuel cells, DC generators, among others, provide power to a DC bus in low power plants [8], [9].…”

Section: Introductionmentioning

confidence: 99%

“…The use of photovoltaic (PV) systems in DC nanogrids is quite attractive due to the low maintenance and operating [9]. In this context, DC buses rated at 380 V are widely employed in several applications [19]- [21].…”

Section: Introductionmentioning

confidence: 99%

“…Several high-voltage gain DC-DC converter topologies have been proposed so far in the literature [8], [9], [24]- [32] Among the existing approaches the extend conversion range, cascaded converters, voltage multipliers, multilevel converters, interleaved converters, switched capacitors and coupled inductors can be highlighted [33]- [35]. The use of coupled inductors has drawn significant attention, since it allows obtaining a high static gain while using few components in the power circuit.…”

Section: Introductionmentioning

confidence: 99%

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High-Voltage Gain DC-DC Converter For Photovoltaic Applications In DC Nanogrids

Pontes¹,

Silva²,

Sá³

2020

Eletrônica de Potência

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Photovoltaic (PV) systems used in DC Nanogrids present prominent advantages associated with low maintenance need and operation costs. Owing to the low output voltage of the PV module, highly efficient high-voltage gain DC-DC converters are required for connection with the DC nanogrid. This work presents a novel DC-DC converter topology with current source characteristic for PV applications and current injection in DC nanogrids. The introduced converter uses coupled inductors and switched capacitors to achieve high voltage gain with low component count and without using extreme duty ratios. Besides, the main switch is turned on with nearly zero current, thus contributing to minimized switching losses. The qualitative and quantitative analyzes of the circuit are presented in detail and a prototype rated at 200 W is developed and evaluated in the laboratory. Experimental results demonstrate efficient renewable energy conversion, where the maximum efficiency is 96.8%.

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“…However, in order to simplify the calculatings, the secondary leakage inductance LKS influence on static gain can be disconsidering. The coupling fator k can be defined [9]:…”

Section: Static Gainmentioning

confidence: 99%

Section: Static Gainmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

High-Voltage Gain DC-DC Converter For Photovoltaic Applications In DC Nanogrids

Pontes¹,

Silva²,

Sá³

2020

Eletrônica de Potência

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Impacts of Switched-Diode Capacitor Stages on the Flying Capacitor Multievel Flyback Converter

Graziani

Grainger

2019

2019 IEEE Energy Conversion Congress and Exposition (ECCE)

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Local Power Distribution—A Review of Nanogrid Architectures, Control Strategies, and Converters

et al. 2023

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Environmental issues and the global need to extend sustainable access to electricity have fostered a huge amount of research in distributed generation by renewables. The challenges posed by the widespread deployment of distributed generation by renewables, such as intermittent power generation, low inertia, the need for energy storage, etc., call for the development of smart grids serving specific local areas or buildings, referred to as microgrids and nanogrids, respectively. This has led in the last decades to the proposal and actual implementation of a wide variety of system architectures and solutions, and along with that the issue of the power converters needed for interfacing the AC grid with DC micro- or nanogrids, and for DC regulation within the latter. This work offers an overview of the state of the art of research and application of nanogrid architectures, control strategies, and power converter topologies.

show abstract

High-gain DC-DC converter with current source characteristics at the output for applications in photovoltaic systems and current injection in nanogrids

Cited by 4 publications

References 18 publications

High-Voltage Gain DC-DC Converter For Photovoltaic Applications In DC Nanogrids

High-Voltage Gain DC-DC Converter For Photovoltaic Applications In DC Nanogrids

Impacts of Switched-Diode Capacitor Stages on the Flying Capacitor Multievel Flyback Converter

Local Power Distribution—A Review of Nanogrid Architectures, Control Strategies, and Converters

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