Power conditioning of fuel cell systems in portable applications

Brey, J.J.; Bordallo, C.R.; Carrasco, J.M.; Galván, E.; Jiménez, A B Jovani; Moreno, Efraín del Risco

doi:10.1016/j.ijhydene.2006.10.033

Cited by 26 publications

(16 citation statements)

References 7 publications

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“…During the “on” state of the switching element, electrical energy is stored in the inductor, and then the capacitor supplies current to the load and the diode with a reverse bias. When in the “off” state, stored energy is transferred to the load and capacitor through the diode [ 6 ]. The boost converter operates in one of two modes, continuous-conduction mode or discontinuous-conduction mode, which is characterised by the current waveform of the inductor [ 10 ].…”

Section: Current Technology Behind the Main Topology Of DC Convertmentioning

confidence: 99%

“…The boost converter operates in one of two modes, continuous-conduction mode or discontinuous-conduction mode, which is characterised by the current waveform of the inductor [ 10 ]. The inductor current is greater than zero all the time when in continuous-conduction mode, and the inductor current falls to zero after each switching cycle when in discontinuous-conduction mode [ 6 ].…”

Section: Current Technology Behind the Main Topology Of DC Convertmentioning

confidence: 99%

“…The buck-boost topology can produce an output voltage that is equal to, less than, or greater than the input voltage. The buck-boost topology is suitable for portable applications, which require a wide range of output levels, and it is an attractive choice when a large current is supplied [ 6 ]. The output voltage is equal to the input voltage when the duty cycle is 0.5.…”

Section: Current Technology Behind the Main Topology Of DC Convertmentioning

confidence: 99%

See 2 more Smart Citations

An Overview of Power Electronics Applications in Fuel Cell Systems: DC and AC Converters

Ali

Kamarudin

Masdar

et al. 2014

The Scientific World Journal

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Power electronics and fuel cell technologies play an important role in the field of renewable energy. The demand for fuel cells will increase as fuel cells become the main power source for portable applications. In this application, a high-efficiency converter is an essential requirement and a key parameter of the overall system. This is because the size, cost, efficiency, and reliability of the overall system for portable applications primarily depend on the converter. Therefore, the selection of an appropriate converter topology is an important and fundamental aspect of designing a fuel cell system for portable applications as the converter alone plays a major role in determining the overall performance of the system. This paper presents a review of power electronics applications in fuel cell systems, which include various topology combinations of DC converters and AC inverters and which are primarily used in fuel cell systems for portable or stand-alone applications. This paper also reviews the switching techniques used in power conditioning for fuel cell systems. Finally, this paper addresses the current problem encountered with DC converters and AC inverter.

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Section: Current Technology Behind the Main Topology Of DC Convertmentioning

confidence: 99%

Section: Current Technology Behind the Main Topology Of DC Convertmentioning

confidence: 99%

Section: Current Technology Behind the Main Topology Of DC Convertmentioning

confidence: 99%

See 1 more Smart Citation

An Overview of Power Electronics Applications in Fuel Cell Systems: DC and AC Converters

Ali

Kamarudin

Masdar

et al. 2014

The Scientific World Journal

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“…Basically, low-voltage, high-current structures are needed because of the FC electrical characteristics. A classical boost converter is often selected as an FC converter [38], [93], [99]- [101], [105]- [107], because it can be operated in the current control mode in a continuous condition mode, as portrayed in Figure 10. Then, one does not need a blocking diode and passive filter between an FC and a converter.…”

Section: Fc Power Convertermentioning

confidence: 99%

Fuel cell high-power applications

Thounthong

Davat

Raël

et al. 2009

EEE Ind. Electron. Mag.

138

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“…1. It is expected that the low frequency ripple current will affect not only the fuel cell capacity, but also the fuel consumption and life span of the fuel cell [6]- [8].…”

Section: Introductionmentioning

confidence: 99%

Characteristic analysis and modeling on PEMFC degradation associated with low frequency ripple current effects

Kim

Jang

Cho

et al. 2011

2011 IEEE Energy Conversion Congress and Exposition

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This work deals with a diagnosis of cathode flooding and membrane drying associated with a low frequency ripple current of a polymer electrolyte membrane fuel cell (PEMFC) based in impedance measurement on single cells. Through direct measurement of the impedance curve of a single cell obtained after cycling for hours at variable frequencies, it has been found that impedance magnitude of a fuel cell injecting a low frequency ripple current increased when compared with those injecting a high frequency ripple current. The study develops these investigations one step further by showing impedance measurement on single cells during operation in flooding and drying modes concerning a low frequency ripple current. In particular, it is shown that a low frequency ripple current more accelerates the PEMFC degradation associated with two PEMFC failures.

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Power conditioning of fuel cell systems in portable applications

Cited by 26 publications

References 7 publications

An Overview of Power Electronics Applications in Fuel Cell Systems: DC and AC Converters

An Overview of Power Electronics Applications in Fuel Cell Systems: DC and AC Converters

Fuel cell high-power applications

Characteristic analysis and modeling on PEMFC degradation associated with low frequency ripple current effects

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