Direct Energy Transfer for High Efficiency Photovoltaic Energy Systems Part I: Concepts and Hypothesis

Dehbonei, H.; Lee, S.R.; Nehrir, Hashem

doi:10.1109/taes.2009.4805261

Cited by 53 publications

(15 citation statements)

References 19 publications

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“…The converters parameters are summarized in Table IV, and correspond to the maximum power point characteristics of the SKJ60P6L photovoltaic panel [23]. The corresponding graphical representations of (15)- (20) have been depicted in Figure 10 -Figure 12, respectively. The continuous lines correspond to the analytical expressions, whereas the dashed lines are obtained through simulation with PSIM® software tool.…”

Section: Frequency Domain Comparisonmentioning

confidence: 99%

See 1 more Smart Citation

Static and dynamic analysis of a 300W Series Connection Flyback converter applied to photovoltaic panels

Moral

Barrado

Sanz

et al. 2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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In DC-DC converter-per-photovoltaic (PV) panel architectures, the converter must have high efficiency and low cost. Due to its simplicity, the Boost converter is normally used when the output voltage of the converter have to be higher than the PV panel voltage. Some other solutions with higher efficiency and low cost can be also found in the literature for the same application, such as the series connection topology converters. In this type of topologies a part of the power is directly transferred from the source to the load, increasing the converter efficiency. This paper analyses the static and dynamic characteristics of the Series Connection Flyback (SCF) converter. A comparison between this topology and the Boost converter one, applied to a photovoltaic panel, has also done. A 300W prototype validates the proper operation of the SCF converter with efficiencies higher than 97%, including the control losses.

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Section: Frequency Domain Comparisonmentioning

confidence: 99%

“…It has also been applied in PV systems, with different converter topologies [17] - [19]. In [20] - [21] a comparison of some PPP converters applied to PV systems is presented providing efficiency levels up to 96.2%. The topology analyzed in this paper is the Series Connection Flyback (SCF), see Figure 2.…”

Section: Introductionmentioning

confidence: 99%

Static and dynamic analysis of a 300W Series Connection Flyback converter applied to photovoltaic panels

Moral

Barrado

Sanz

et al. 2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

View full text Add to dashboard Cite

show abstract

“…It is easy to see the first order converter has three voltage stiff elements connected head to tail with predefined relationships (1) and (2). The sum of any two of them is equal to the negative of the other one.…”

Section: First Order Casementioning

confidence: 99%

“…In this way, only part of the load current will flow through power electronics circuits and the total efficiency was expected to be higher. In January 2009, two papers on the same circuit concept were published by Dehbonei [2], [3]. The detailed analysis of three basic dc/dc converters using the "stacked" concept was presented.…”

Section: Introductionmentioning

confidence: 99%

The analysis of DC-DC converter topologies based on stackable voltage elements

Zou

Scott

Wang

2010

2010 IEEE Energy Conversion Congress and Exposition

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In this paper, a method for generating nonisolated dc/dc converter topologies is summarized. This method utilizes the stackable voltage stiff elements in a dc/dc converter and arranges them to create new usable voltage levels. By defining the input and output for different voltage stiff elements, a comprehensive set of converters can be created. The canonical first order switching cell, along with a proposed third order switching cell, are used to help analyze the first and third order converter topologies. Detailed analysis is provided using the two switching cells. Finally, transformer-less multiple-inputs converters are also analyzed using both the two switching cells and the stackable voltage element concept.Index Terms-Canonical switching cell, third order switching cell, stackable voltage elements.

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“…For low power application, a battery less solar harvesting circuit was shown in [5]. A directly water pumping system using solar module was reported in [6]. It is desirable to use high efficiency power conditioning unit for PV systems to utilize the PV power completely [7].…”

Section: Introductionmentioning

confidence: 99%

Battery Less Solar Power Controller to Drive Load at Constant Power Irrespective of Solar Radiation

Sen¹,

Islam²

2017

J. Energ. Technol. Res.

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Abstract:In this paper a 12V, 2.4W battery less solar power controller (BLSPC), capable of driving load at constant low power, has been proposed, designed and practically implemented with minimal efficiency sacrifice irrespective of solar radiance variation. This device utilizes power electronic circuits, more specifically a Buck-Boost DC-DC converter along with Maximum Power Point Tracking (MPPT) algorithm to perform the desired task. Starting from 100w/ 2 solar radiation the controller can provide constant power 2.4 watts at 12V without using any storage facilities. The output voltage can be adjusted to any desired level from 0V to 12V DC depending on the application at consumer premises. In this work, efficiency up to 90% at shadow weather phenomenon has been achieved. Moreover, this power controller can be used in consumer premises for direct coupled system with solar panel irrespective of solar radiation variance.

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Direct Energy Transfer for High Efficiency Photovoltaic Energy Systems Part I: Concepts and Hypothesis

Cited by 53 publications

References 19 publications

Static and dynamic analysis of a 300W Series Connection Flyback converter applied to photovoltaic panels

Static and dynamic analysis of a 300W Series Connection Flyback converter applied to photovoltaic panels

The analysis of DC-DC converter topologies based on stackable voltage elements

Battery Less Solar Power Controller to Drive Load at Constant Power Irrespective of Solar Radiation

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