Optimum sizing of the inverter for maximizing the energy yield in state-of-the-art high-concentrator photovoltaic systems
| Autor: | Pedro M. Rodrigo, Pedro Pérez-Higueras, Florencia Almonacid, Eduardo F. Fernández |
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| Rok vydání: | 2018 |
| Předmět: |
Renewable Energy
Sustainability and the Environment 020209 energy Photovoltaic system 02 engineering and technology Air mass (solar energy) Concentrator Sizing Automotive engineering Nameplate capacity Generator (circuit theory) 0202 electrical engineering electronic engineering information engineering Inverter Environmental science General Materials Science State (computer science) |
| Zdroj: | Solar Energy. 171:728-739 |
| ISSN: | 0038-092X |
| Popis: | The sizing of the inverter in comparison to the rated capacity of the photovoltaic generator is investigated for high-concentrator photovoltaic (HCPV) systems. An HCPV module of typical characteristics is modelled and parameterized, taking into account direct normal irradiance (DNI), ambient temperature, air mass and aerosol optical depth as atmospheric inputs, while the DC losses of the HCPV generator are allowed to vary in the ranges reported in the literature. A set of 80 commercial inverters are analysed to obtain the typical efficiency curves of state-of-the-art low-, medium-, and high-efficiency inverters. Four locations worldwide with high annual DNI levels and different average values of the weather variables influencing HCPV performance are studied. Results show that the inverter can be sized between 84% and 112% of the rated capacity of the HCPV generator at Concentrator Standard Test Conditions depending on the scenario considered for maximizing the final energy yield of the system. The proposed methodology uses analytical equations, all the model parameters are provided and justified and atmospheric inputs are obtained from meteorological databases in order to make the application easy regarding its use in other locations where the climate data is available. |
| Databáze: | OpenAIRE |
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