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Last Updated: 10 January 2023

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A Novel Switched Hybrid-Voltage Doubler High Gain DC-DC Converter for Renewable Energy Applications

Background: For transferring electricity to the load center, the power converter is vital in renewable energy system applications. The AC network voltage is much higher than the renewable energy source voltage, so a transformer is often used to raise the voltage. Objective: Using a high-gain converter, DC link voltage is boosted to a higher level to eliminate the transformer's need. Methodology: This paper discusses the rigorous scientific results of CCM and DCM techniques. Conclusion: From the measured results, it has been found that the new converter will play the most prominent role in the implementation of renewable energy system upgrades because it raises the voltage to the appropriate level as required by the system.

Source link: https://doi.org/10.2174/2352096516666230105143052


A new extended single-switch high gain DC–DC boost converter for renewable energy applications

Abstract High-gain DC/DC converters are regarded as one of the most important components of green energy systems. Large numbers of these converters are used to raise the voltage gain by an extreme duty cycle. A new model of a high-gain DC/DC boost converter is suggested in this article. This converter has the ability to be used in low input voltage applications that necessitate a high voltage increase, such as solar photovoltaic panels and fuel cells, which need a large voltage boost. Power losses and efficiency are shown by derivation.

Source link: https://doi.org/10.1038/s41598-022-26660-7


Soft Switched Current Fed Dual Active Bridge Isolated Bidirectional Series Resonant DC-DC Converter for Energy Storage Applications

This paper introduces a high-frequency isolated current-fed dual active bridge bidirectional DC model for energy storage applications, as well as a steady-state examination of the converter. The ability of the new converter has been compared to that of a voltage-fed converter with a capacitive output filter. The fabricated converter topology is operated in continuous conduction mode, with no air current, less current tension, and high efficiency. The converter's soft switching of all switches for a wide range in load and input voltage without loss of duty cycle is found, and it is discovered that the converter works with soft switching of all switches for a wide range of load and input voltage. Because of their inherent boosting capability, current-fed converters are suitable for low-voltage renewable energy applications. To make the output current sufficient for quick charging and high-power density battery storage applications, an inductive output filter has been added.

Source link: https://doi.org/10.3390/en16010258


Design and fabrication of six-volt vertically-stacked GaAs photovoltaic power converter

Abstract: A six-volt vertically stacked, high-current GaAs photovoltaic power converter has been developed and manufactured to produce output power over 1 W under monochromatic illumination. The thickness of each GaAs sub-cell has been determined based on the calculation of absorption depth of photons with a wavelength of 808 nm using absorption coefficients obtained from ellipsometry measurements.

Source link: https://doi.org/10.1038/srep38044


Successive Approximation Register Analog-to-Digital Converter (SAR ADC) for Biomedical Applications

The study of latest progress in the construction of a single SAR ADC architecture is reviewed. Implementation of the SAR ADC's high energy efficiency has become the most important over the last decade. So, many different implementation plans for the main components of the SAR ADC have been suggested. Several new variations of dynamic comparator circuits are introduced in order to achieve low power consumption. At the conclusion of this review, the evolution of DAC architecture in diverse biomedical applications today may lead to a tradeoff between resolution, speed, and linearity, which would be reflected in the challenges of a single SAR ADC. The dual split capacitive DAC array assembly method and hybrid capacitor design can be used for high resolution. These schemes can save switching electricity and reduce capacitor array area with high linearity. Therefore, SAR ADC is considered the most suitable option for biomedical applications.

Source link: https://doi.org/10.1155/2023/3669255


Implementation of Non-Isolated Zeta-KY Triple Port Converter for Renewable Energy Applications

The combination of these converters is highly effective because the Zeta converter provides less output voltage ripples with high gain as a result of high gain, and the KY converter topology is suitable for resisting load transients. To encourage bidirectional power flow, the KY converter used in this research work has been exposed to a topological upgrade. The bidirectional circulation is vital to save the excess energy in PV batteries under low load conditions. Two control algorithms are designed and installed in the following: the first one guarantees the maximum power removal from the PV, while the second one maintains constant dc bus voltage and regulates bidirectional power flow. The simulation and experimental results show that the tested system is suitable for medium power electric shuttle applications. The produced multiport converter is suitable for renewable energy applications.

Source link: https://doi.org/10.3390/electronics10141681

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions