Maximum Power Extraction From Series-Connected Fuel Cell Stacks by the Current Compensation Technique

Somaiah, Boddu; Agarwal, Vivek

doi:10.1109/tpel.2014.2311323

Cited by 15 publications

(3 citation statements)

References 24 publications

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“…It can seen from the above analysis that the healthier cells have a smaller internal resistances and larger open circuit voltage, hence can supply higher load currents (133.33A).From the above analysis it is clear that the presense of a single bad cell in a stack can affect the overall power suppled by the stack. This problem can be overcome by using modular structure [14] and their analyses are elaborated in the next section.…”

Section: Uni Stack Configuration (Usc)mentioning

confidence: 99%

“…The adaptive control approach to gain maximum efficiency is proposed in [13]. The method of current compensation technique to extract the maximum power has been proposed by B. Somaiah et al [14]. A modular apporch for gaining the maximum power has been proposed in [15] and [16].In this modular scheme a single FC stack is divided into suitable number of sections and each section delivers power to the load.…”

Section: Introductionmentioning

confidence: 99%

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Analytical Comparision between Single and Modular Fuel Cell Stack: Uniform Modular Cell Approch

Naik

Samuel

2017

IJAAS

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A single fuel cell (FC) produces a very small voltage of about 0.6 -0.8 V under normal operating condition, and hence several individual cells are connected in series as a stack to get higher voltages suitable for practical loads. The stacks are then connected in series to get required values of DC voltage. The FC performance varies with the operating parameters such as temperature, humidity, fuel flow rate, ageing and fuel non uniform concentration. The FC stack underperforms when there is presence of bad cell in it. The Presence bad cell in a stack limits the current handling capacity of other healthy cells when it’s connected as a conventional single stack. This can be overcome by connecting the fuel cells in uniform modular cell configuration. In this paper a Uniform Modular Cell Configuration (UMCC) is proposed to gain the maximum power from the stack and the conventional Single or Uni Stack Configuration (USC) is compared with the proposed structure. A detail mathematical analysis of comparing both methods is described. Further the superiority of the proposed method is proven by carrirying out the simulations under steady state operating condition of a FC stack feeding to a constant current load.

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Section: Uni Stack Configuration (Usc)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analytical Comparision between Single and Modular Fuel Cell Stack: Uniform Modular Cell Approch

Naik

Samuel

2017

IJAAS

View full text Add to dashboard Cite

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“…FCs inherently produce low voltage, are susceptible to high current ripple and have slow dynamics [9]- [11], [16], [17]. Therefore, for practical power supply applications, the individual FCs are connected together to form a FC stack, which produces a higher voltage compared to that of individual FCs [16], [18]. However, the resulting FC stack voltage is unregulated and of small magnitude for most practical power supply voltage requirements [19].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of a PWM DC–DC Converter for PEMFC Stack Power Conditioning Applications

Mwinga¹,

Groenewald²,

McPherson³

2019

dtcse

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A Fuel cell stack inherently generates low unregulated voltage, which is not useful for most power supply applications. In order to make this voltage useful, often a power conditioning system that consists of a converter or inverter or a combination of both is connected intermediate to the fuel stack. Several topologies for converters and inverters exist. In this paper, the performance of a transformerless pulse width modulated dc-dc interleaved boost voltage multiplier converter with current ripple reduction capability is analyzed for PEMFC stack power conditioning applications. Key experimental results are included, which indicate that the stack output voltage was regulated and boosted, and highlight the voltage balancing challenge arising from interleaving.

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Application in Industrial Field

Chakkarapani

Rani

Ilango

et al. 2023

Schiff Base Metal Complexes

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Maximum Power Extraction From Series-Connected Fuel Cell Stacks by the Current Compensation Technique

Cited by 15 publications

References 24 publications

Analytical Comparision between Single and Modular Fuel Cell Stack: Uniform Modular Cell Approch

Analytical Comparision between Single and Modular Fuel Cell Stack: Uniform Modular Cell Approch

Performance Analysis of a PWM DC–DC Converter for PEMFC Stack Power Conditioning Applications

Application in Industrial Field

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