Design and analysis of performance of a DC power optimizer for HCPV systems within CPVMatch project

Alonso, R.; Pereda, A.; Bilbao, Eneko; Cortajarena, José Antonio; Temez, Inigo Vidaurrazaga; Román, E.

doi:10.1063/1.5053522

Cited by 2 publications

(6 citation statements)

References 6 publications

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“…For the panel-level granularity of conversion (orange line), a more regular pa ern can be seen between the different converters. In [31], with a simple buck topology, the converter seems to hold the best efficiency within its granularity group. For the panel-level granularity of conversion (orange line), a more regular pattern can be seen between the different converters.…”

Section: Results and Analysismentioning

confidence: 99%

“…For the panel-level granularity of conversion (orange line), a more regular pattern can be seen between the different converters. In [31], with a simple buck topology, the converter seems to hold the best efficiency within its granularity group.…”

Section: Results and Analysismentioning

confidence: 99%

“…Concerning the panel-level converters, the price penalty reaches only one to two or ders of magnitudes above the maximum. The cost of the converter in [34] suffers from its high complexity factor and is superior to the two other converters in the same category The converter in [31] is the closest to achieve both efficiency and added cost criteria, with a simple and low loss buck. Finally, the only converter working at string level is the one which has a price range directly compatible with the calculated reference.…”

Section: Results and Analysismentioning

confidence: 99%

“…The cost of the converter in [34] suffers from its high complexity factor and is superior to the two other converters in the same category. The converter in [31] is the closest to achieve both efficiency and added cost criteria, with a simple and low loss buck.…”

Section: Results and Analysismentioning

confidence: 99%

“…This range takes into account the component quality and overall price volatility. One of the articles under study [31] assumes a price of 150 USD/kW, falling within that range. We assume that the range of power ratings displayed in the next section is compatible with the use of the latter price range.…”

Section: Cost Evaluation For Power Electronic Convertersmentioning

confidence: 99%

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Overview of DC/DC Converters for Concentrating Photovoltaics (CPVs)

Camail,

Allard,

Darnon

et al. 2023

Energies

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With energy efficiencies close to two times higher than traditional photovoltaic (PV), concentrated photovoltaic (CPV) systems represent a promising solution for solar power generation. In the same way, the converging Levelized Cost of Energy (LCOE) of both technologies favors interest toward CPV systems. In order to assess more clearly the potential of this technology, an up-to-date evaluation of the power electronic conversion techniques used in CPV to increase the yielded energy is crucial. This assessment not only sheds light on the latest advancements, but also provides insights into design trade-offs, performance limitations, and potential areas for improvement in CPV systems. This work focuses on the DC/DC converters used as an intermediary stage of conversion between the panels and a central grid-tied inverter. Electrical and economical metrics are used to compare actual converters developed and presented in a comprehensive literature review.

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Section: Results and Analysismentioning

confidence: 99%

Section: Results and Analysismentioning

confidence: 99%

Section: Results and Analysismentioning

confidence: 99%

Section: Results and Analysismentioning

confidence: 99%

Section: Cost Evaluation For Power Electronic Convertersmentioning

confidence: 99%

See 3 more Smart Citations

Overview of DC/DC Converters for Concentrating Photovoltaics (CPVs)

Camail,

Allard,

Darnon

et al. 2023

Energies

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Life Cycle Assessment of New High Concentration Photovoltaic (HCPV) Modules and Multi-Junction Cells

Payet

Greffe

2019

Energies

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Worldwide electricity consumption increases by 2.6% each year. Greenhouse gas emissions due to electricity production raise by 2.1% per year on average. The development of efficient low-carbon-footprint renewable energy systems is urgently needed. CPVMatch investigates the feasibility of mirror or lens-based High Concentration Photovoltaic (HCPV) systems. Thanks to innovative four junction solar cells, new glass coatings, Position Sensitive Detectors (PSD), and DC/DC converters, it is possible to reach concentration levels higher than 800× and a module efficiency between 36.7% and 41.6%. From a circular economy's standpoint, the use of concentration technologies lowers the need in active material, increases recyclability, and reduces the risk of material contamination. By using the Life Cycle Assessment method, it is demonstrated that HCPV presents a carbon footprint ranking between 16.4 and 18.4 g CO 2 -eq/kWh. A comparison with other energy means for 16 impact categories including primary energy demand and particle emissions points out that the environmental footprint of HCPV is typically 50 to 100 times lower than fossil fuels footprint. HCPV's footprint is also three times lower than that of crystalline photovoltaic solutions and is close to the environmental performance of wind power and hydropower.mounted with polymethylmethacrylate (PMMA) Fresnel lenses on modules. Raw material extraction and component manufacturing, considering steel and aluminum, contributed the most to the impact. The 'Apollon CPV module' LCA evaluation revealed that aluminum and electronic components were the most impacting processes [29]. The carbon footprint of the system mounted on a two-axis tracker in Catania was estimated at 20 g CO 2 -eq/kWh.De Wild-Scholten [30] determined greenhouse gas (GHG) emissions for a SolarTec based on a Fresnel lens and CPower mounted with a mirror that concentrates the light on monocrystalline silicon and III-V solar cells. They reported GHG emissions of 35 g CO 2 -eq/kWh for a CPower module on an optimized tracker operating in Catania, Sicily. However, in the same study and under the same conditions, a SolarTec module presents an actual performance of 42 g CO 2 -eq/kWh.The nature of the consumed electricity mix for HCPV module manufacturing highly influences the climate change impact. Fthenakis V.M. [31] reported 27 g CO 2 -eq/kWh over a 30 year operation for the Ammonix 7700 26-kW HCPV system equipped with single-crystal Si cells installed in Phoenix, AZ, USA. The tracker and the module accounted for the largest part of its life cycle energy use and emissions. A previous study in 2007 [32] made very similar conclusions. However, it reported 38 g CO 2 -eq/kWh for the 24 kW-Ammonix concentrator PV system with single-crystal Si cells. Also, a study presenting FLATCON results, with a HCPV system, also presented similar results with 30 CO 2 -eq/kWh [33].A novel wafer-bonded four-junction solar cell was developed for better spectral matching by European research institutes and industrial partners using ne...

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Design and analysis of performance of a DC power optimizer for HCPV systems within CPVMatch project

Cited by 2 publications

References 6 publications

Overview of DC/DC Converters for Concentrating Photovoltaics (CPVs)

Overview of DC/DC Converters for Concentrating Photovoltaics (CPVs)

Life Cycle Assessment of New High Concentration Photovoltaic (HCPV) Modules and Multi-Junction Cells

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