FC and PV emulation by buck converter based on experimental VxI curves and dynamic response

Trapp, J. G.; Lima, L. P.; Farret, Felix A.; Fernandes, F. T.; Balen, Gleisson

doi:10.1109/cobep.2011.6085289

Cited by 10 publications

(2 citation statements)

References 8 publications

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“…Figure 7 shows the response of the load current to such variation, considering an ideal DC input voltage source of 40 V. Figure 7. Step response of the input current. presented in [9], which uses models based on real IxV such power supplies, by varying the reference load current of the emulator connected to the chopper converter.…”

Section: Simulation Resultsmentioning

confidence: 99%

DC electronic load based on an interleaved chopper converter to determine photovoltaic panel and fuel cell biasing curves

Trapp

Lenz

Farret

et al. 2012

2012 10th IEEE/IAS International Conference on Industry Applications

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This paper presents the description of a DC electronic load based on an interleaved chopper converter to determine the biasing and dynamics characteristics of either fuel cells (FCs) and photovoltaic panels (PVs). Variable loads are used for experimental data acquisition of I-V power supply characteristics in a way that several operating points can be easily obtained. Laboratory load current tests using ordinary power resistors are not an easy solution due to their size, cost and overall weight. To resolve that it is proposed in this paper that the current through electronically varying loads can give better resolution to the I-V characteristics of FC and PV sources. The interleaved operation of the chopper converter ensures an input high frequency current ripple, reducing so the input LC filters size and converter volume. The converter transfer function is analyzed and controllers are designed to obtain a fast dynamic response and insure good stability in steady state operation. It is presented the converter operating principles, operating states and design. The simulated and results are compared to each other in order to prove the electronic load effectiveness in acquiring the I-V biasing curves of fuel cells and photovoltaic panels.

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Section: Simulation Resultsmentioning

confidence: 99%

DC electronic load based on an interleaved chopper converter to determine photovoltaic panel and fuel cell biasing curves

Trapp

Lenz

Farret

et al. 2012

2012 10th IEEE/IAS International Conference on Industry Applications

Self Cite

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“…Emulador PV; Conversor FSBB; Curva I-V. Várias abordagens para projetar emuladores PV são encontradas na literatura: células solares de referência de baixa potência (Armstrong et al, 2005); fontes de alimentação CC com resistências variáveis (Mukerjee e Dasgupta,2007); e os conversores comutados CC-CC (Trapp et al, 2011) (Lu e Nguyen, 2012) (Cordeiro et al, 2015), os mais utilizados atualmente. Alguns deles não são flexíveis para emular diferentes tipos de módulos ou configuração de matriz fotovoltaica, enquanto alguns, apesar da flexibilidade, são caros e impedem o uso em pequenos projetos.…”

Section: Palavras-chaveunclassified

Equivalência De Grupos Com Variáveis Latentes: Uma Aplicação De Modelagem De Equações Estruturais Na Avaliação Da Influência Do Gênero Na Satisfação Do Cliente Em Comunicações Móveis

Silva¹,

Neto²,

Mattozo³

et al. 2021

O Desenvolvimento De Novas Tecnologias Voltadas Para as Ciências Exatas

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Microinverter Power System to Feed Grid-Isolated AC Loads Using Fuel Cells

Ramos-Paja,

Villegas-Ceballos,

Saavedra-Montes

2024

Iran J Sci Technol Trans Electr Eng

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Microgrids based on fuel cells are used to produce energy due to their zero emissions, stand-alone operation, and compact size that facilitates mobility; making research in fuel cell applications essential to support their widespread adoption. This paper proposes two main contributions: the adaptation of a TMDSSOLARUINVKIT microinverter for integration into a microgrid powered by a fuel cell, and the design and implementation of adaptive controllers. The controllers ensure the proper operation of the microgrid and avoid the fuel cell starvation. The microgrid comprises a fuel cell emulator, a TMDSSOLARUINVKIT microinverter, and AC linear and nonlinear loads. The research methodology follows three steps. First, a hardware-in-the-loop approach is proposed to emulate the fuel cell using a real-time target machine and a power interface, utilizing a model derived from the fuel cell manufacturer’s specifications. Then, a detailed model of a flyback converter is obtained to design and implement a control system, consisting of two adaptive controllers, one for regulating the current of the fuel cell and another for controlling the DC-link voltage. The current controller adapts a proportional gain to ensure a desired cut-off frequency and the DC-link voltage controller adapts a proportional and integral gains due changes in the duty cycle, ensuring the proper operation in any operating condition. Finally, the functionality of the microgrid based on a fuel cell is validated through four experiments. The results confirm the effective operation of the controllers ensuring the safe operation of the fuel cell. One experiment is designed to demonstrate the capability of the proposed solution to meet the requirements of rural areas in Colombia.

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FC and PV emulation by buck converter based on experimental VxI curves and dynamic response

Cited by 10 publications

References 8 publications

DC electronic load based on an interleaved chopper converter to determine photovoltaic panel and fuel cell biasing curves

DC electronic load based on an interleaved chopper converter to determine photovoltaic panel and fuel cell biasing curves

Equivalência De Grupos Com Variáveis Latentes: Uma Aplicação De Modelagem De Equações Estruturais Na Avaliação Da Influência Do Gênero Na Satisfação Do Cliente Em Comunicações Móveis

Microinverter Power System to Feed Grid-Isolated AC Loads Using Fuel Cells

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