A Direct AC–DC and DC–DC Cross-Source Energy Harvesting Circuit with Analog Iterating-Based MPPT Technique with 72.5% Conversion Efficiency and 94.6% Tracking Efficiency

Chen, Shin-Hao; Huang, Tzu‐Chi; Ng, Shao Siang; Lin, Kuei-Liang; Du, Ming-Jhe; Kang, Yu-Chai; Chen, Ke-Horng; Wey, Chin‐Long; Lin, Ying-Hsi; Lee, Chao-Cheng; Lin, Jenshan; Tsai, Tsung-Yen

doi:10.1109/tpel.2015.2489922

Cited by 43 publications

(11 citation statements)

References 15 publications

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“…When operated in mode 2, there is a slight reduction in the proposed system battery round trip efficiency due to the losses in the dc-dc converter, compared to the experimental setup, where the PV and BESS have independent inverters. Generally, due to the reduced amount of switching devices, dc-dc converters have higher efficiencies when compared to dc-ac converters [23].…”

Section: Power Electronics and Controlsmentioning

confidence: 99%

The Design and Analysis of Large Solar PV Farm Configurations With DC-Connected Battery Systems

Akeyo

Rallabandi

Jewell³

et al. 2020

IEEE Trans. on Ind. Applicat.

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Typically, solar inverters curtail or "clip" the available power from the PV system when it exceeds the maximum ac capacity. This paper discusses a battery system connected to the dc-link of an inverter to recuperate this PV energy. Contrary to conventional approaches, which employ two dc-dc converters, one each for the battery and solar PV system, the proposed configuration utilizes a single dc-dc converter capable of simultaneously operating as a charge controller and a maximum power point tracking (MPPT) tracking device. In addition to improving the overall system capacity factor, increasing the conversion efficiencies and ensuring MPPT stability, the proposed configuration offers a simple solution for adding energy storage to existing PV installations. With this configuration, the excess power that will otherwise be curtailed due to inverter rating limitations is stored in the battery and supplied to the grid during periods of reduced irradiance. Moreover, a systematic methodology for sizing a dc-bus connected battery to minimize total PV energy curtailed was developed using an annual PV generation profile at the Louisville Gas and Electric and Kentucky Utilities (LG&E and KU) E.W. Brown solar facility at Kentucky. The detailed behavior of the proposed system and its power electronics controls and operations were validated with case studies developed in PSCAD T M /EMTDC T M for variable power generation and PV output power smoothing.

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Section: Power Electronics and Controlsmentioning

confidence: 99%

The Design and Analysis of Large Solar PV Farm Configurations With DC-Connected Battery Systems

Akeyo

Rallabandi

Jewell³

et al. 2020

IEEE Trans. on Ind. Applicat.

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“…Different algorithms are often used and many researchers suggest various ways to implement such algorithms, as well as their variations, using customized circuits [1][2][3][4][5][6][7][8][9][10], or by programming a microcontroller [11]. However, the freedom of choice among such algorithms is not allowed in low-power systems, due to the inherent trade-off between computational complexity and power consumption.…”

Section: Introductionmentioning

confidence: 99%

A Low Power AC/DC Interface for Wind-Powered Sensor Nodes

et al. 2021

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Sensor nodes have been assigned a lot of tasks in a connected environment that is growing rapidly. The power supply remains a challenge that is not answered convincingly. Energy harvesting is an emerging solution that is being studied to integrate in low power applications such as internet of things (IoT) and wireless sensor networks (WSN). In this work an interface circuit for a novel fluttering wind energy harvester is presented. The system consists of a switching converter controlled by a low power microcontroller. Optimization techniques on the hardware and software level have been implemented, and a prototype is developed for testing. Experiments have been done with generated input signals resulting in up to 67% efficiency for a constant voltage input. Other experiments were conducted in a wind tunnel that showed a transient output that is compatible with the target applications.

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“…Unfortunately, they only considered 4 collectors of very low power. The authors of [31] studied a solar panel, a BB and two modes of operation for an EMS. For the first mode it was considered that the panel does not supply enough power and the BB is used until the maximum current point in the inductor is reached.…”

Section: Introductionmentioning

confidence: 99%

Harvesting in electric vehicles: combining multiple power tracking and fuel-cells

Parada-Salado

Gaona-Cárdenas

Licea

et al. 2020

IJECE

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Exploitation of green energy sources is essential to diminish the deterioration of our environment. The energy harvesting, represents an alternative to achieve greater range in electric and hybrid vehicles. An energy management strategy (EMS) must be optimized to obtain the best beneﬁts in such vehicles, which is not a trivial task. If harvesting or energy recovery devices are added, the EMS becomes a dual-purpose algorithm: minimizing fuel consumption and maximizing energy harvest through maximum power point tracking (MPPT) controllers. Known studies consider separate EMS, one for traction and another for regenerative braking, without considering harvest devices such as solar panels, regenerative suspension, thermal generators, among others. Furthermore, the electronic power converters used, are not designed to handle such unequal power levels. In this article, an electronic platform to include multiple energy harvesting devices in a fuel-cell hybrid electric vehicle, was presented together with a multiple MPPT-EMS. The EMS is easily implementable, and considers quasiconstant cell energy extraction and ﬁltering of current transients to the battery bank ensuring the longevity of the devices. A new mathematical model of the platform, a closed loop stability analysis, and numerical and Hardware-in-the-Loop (HIL) validations were presented. Some experimental validation results were also provided.

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A Direct AC–DC and DC–DC Cross-Source Energy Harvesting Circuit with Analog Iterating-Based MPPT Technique with 72.5% Conversion Efficiency and 94.6% Tracking Efficiency

Cited by 43 publications

References 15 publications

The Design and Analysis of Large Solar PV Farm Configurations With DC-Connected Battery Systems

The Design and Analysis of Large Solar PV Farm Configurations With DC-Connected Battery Systems

A Low Power AC/DC Interface for Wind-Powered Sensor Nodes

Harvesting in electric vehicles: combining multiple power tracking and fuel-cells

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