High voltage ratio non-isolated DC-DC converter for fuel cell power source applications

Huang, Bin; Shahin, Ahmed; Martin, Jean-Philippe; Pierfederici, Serge; Davat, Bernard

doi:10.1109/pesc.2008.4592107

Cited by 29 publications

(3 citation statements)

References 13 publications

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“…In order to satisfy the high voltage ratio requirements, improvements have been carried out on boost topologies. For instance, cascaded boost converter [29], boost converter with switched capacitors [30], three-level boost converter [31], floating output DCeDC multilevel boost converter [32], and integrated double boost SEPIC [33,34], can be used for this purpose. In spite of the voltage ratio improvement, these topologies suffer from having high input current ripple in keeping small inductor value and volume.…”

Section: Introductionmentioning

confidence: 99%

Power switch failures tolerance and remedial strategies of a 4-leg floating interleaved DC/DC boost converter for photovoltaic/fuel cell applications

et al. 2016

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In recent years, many researchers have proposed new DC/DC converters in order to meet the fuel cell requirements. The reliability of these DC/DC converters is crucial in order to guarantee the availability of fuel cell systems. In these converters, power switches ranked the most fragile components. In order to enhance the reliability of DC/DC converters, fuel cell systems have to include fault-tolerant topologies. Usually, dynamic redundancy is employed to make a fault-tolerant converter. Despite this kind of converter allows ensuring a continuity of service in case of faults, the use of dynamic redundancy gets back to increase the complexity of the converter. In order to cope with reliability expectations in DC/DC converters, floating interleaved boost converters seem to be the best solution. Indeed, they have much to offer for fuel cells and DC renewable energy sources (i.e. photovoltaic system), including reduced input current ripple and reliability in case of faults. Despite the offered benefits of this topology, operating degraded modes lead up to undesirable effects such as electrical overstress on components and input current ripple increasing. The aim of this paper is to carry out a thorough analysis of these undesirable effects and to propose remedial strategies to minimize them.

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Section: Introductionmentioning

confidence: 99%

Power switch failures tolerance and remedial strategies of a 4-leg floating interleaved DC/DC boost converter for photovoltaic/fuel cell applications

et al. 2016

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“…Isolated converter structures with cascaded configuration enables to achieve high voltage gain [3]. However, these are used up to several kW applications [4,5].…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of Three‐Level DC‐DC Converter with Golden Section Search Based MPPT for the Photovoltaic Applications

Balakishan

Sandeep

Aware

2015

Advances in Power Electronics

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In many photovoltaic (PV) energy conversion systems, nonisolated DC-DC converters with high voltage gain are desired. The PV exhibits a nonlinear power characteristic which greatly depends on the environmental conditions. Hence in order to draw maximum available power various algorithms are used with PV voltage/current or both as an input for the maximum power point tracking (MPPT) controller. In this paper, golden section search (GSS) based MPPT control and its application with three-level DC-DC boost converter for MPPT are demonstrated. The three-level boost converter provides the high voltage transfer which enables the high power PV system to work with low size inductors with high efficiency. The balancing of the voltage across the two capacitors of the converter and MPPT is achieved using a simple duty cycle based voltage controller. Detailed simulation of three-level DC-DC converter topology with GSS algorithm is carried out in MATLAB/SIMULINK platform. The validation of the proposed system is done by the experiments carried out on hardware prototype of 100 W converter with low cost AT'mega328 controller as a core controller. From the results, the proposed system suits as one of the solutions for PV based generation system and the experimental results show high performance, such as a conversion efficiency of 94%.

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“…Recently, these power converters have been integrated in the power energy generation from non conventional sources and in its conversion. Some examples include isolated or non isolated, gridconnected, photovoltaic (PV) systems [9]- [12], wind energy generation systems [13], [14], generation systems based on fuel cells [15]- [17] and electric and electronic systems using batteries [18].…”

Section: Introductionmentioning

confidence: 99%

Control design of a cascade boost converter based on the averaged model

Sosa

Martinez‐Rodriguez

Vázquez

et al. 2013

2013 IEEE International Autumn Meeting on Power Electronics and Computing (ROPEC)

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Cascade DC-DC power converters have as main advantage the large output-input voltage relation they provide. This advantage makes them ideal in applications such as the conversion of energy generated by means of non conventional sources. The boost converter dynamics is nonlinear and its linearization yields a non-minimum phase system, therefore a controller design must include the injection of damping to assure the asymptotic stability of the closed-loop system. In this paper is presented the design of an output feedback controller for the cascade boost of two stages, which is based on the dynamics of the averaged model of the power converter. The objective of the controller is the regulation of the output voltage to a desired reference, irrespective of the presence of load changes. The proposed controller makes use of only a subset of the state of the system, that is the output voltage and the input current. This paper also presents numerical simulation results which show the performance of the closed-loop system.

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High voltage ratio non-isolated DC-DC converter for fuel cell power source applications

Cited by 29 publications

References 13 publications

Power switch failures tolerance and remedial strategies of a 4-leg floating interleaved DC/DC boost converter for photovoltaic/fuel cell applications

Power switch failures tolerance and remedial strategies of a 4-leg floating interleaved DC/DC boost converter for photovoltaic/fuel cell applications

Design and Implementation of Three‐Level DC‐DC Converter with Golden Section Search Based MPPT for the Photovoltaic Applications

Control design of a cascade boost converter based on the averaged model

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