scholarly journals SiC Devices for Renewable and High Performance Power Conversion Applications

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Ibrahim Abuishmais ◽  
Tore M. Undeland
Keyword(s):  
Renewable Energy ◽  
High Performance ◽  
Power Conversion ◽  
Substantial Improvement ◽  
Switching Speed ◽  
Energy Applications ◽  
Switching Losses ◽  
High Switching Speed ◽  
Potential Impact

The unique properties of SiC devices enable substantial improvement of existing power conversion systems. SiC devices offer lower conduction and switching losses which increases converter efficiency. With high switching speed ability, employing SiC is expected to reduce weight and cost of conversion systems. This paper investigates the potential impact of SiC devices on renewable energy applications.

High-throughput computational screening of 2D materials for thermoelectrics

2020 ◽  
Vol 8 (37) ◽  
pp. 19674-19683
Author(s):  
Sevil Sarikurt ◽  
Tuğbey Kocabaş ◽  
Cem Sevik
Keyword(s):  
Renewable Energy ◽  
High Throughput ◽  
Thermoelectric Materials ◽  
High Performance ◽  
2D Materials ◽  
Energy Applications ◽  
Computational Screening

High-performance thermoelectric materials are critical in recuperating the thermal losses in various machinery and promising in renewable energy applications.

scholarly journals Biowaste-derived carbon black applied to polyaniline-based high-performance supercapacitor microelectrodes: Sustainable materials for renewable energy applications

2019 ◽  
Vol 316 ◽  
pp. 202-218 ◽  
Author(s):  
Sumita Goswami ◽  
Gowra Raghupathy Dillip ◽  
Suman Nandy ◽  
Arghya Narayan Banerjee ◽  
Ana Pimentel ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Carbon Black ◽  
High Performance ◽  
Energy Applications ◽  
Sustainable Materials

scholarly journals IMPLEMENTATION OF IMPEDANCE SOURCE INVERTER SYSTEM FOR PHOTOVOLTAIC APPLICATIONS

2013 ◽  
pp. 211-215
Author(s):  
NISHA K.C. R ◽  
T.N. BASAVARAJ
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Power Conversion ◽  
Current Source ◽  
Voltage Source ◽  
Voltage Source Inverter ◽  
Energy Applications ◽  
Current Source Inverter ◽  
Photovoltaic Application ◽  
Photovoltaic Applications

This paper presents a high performance, low cost inverter for photovoltaic systems based on Impedance-source concept. Traditional Voltage-source inverter and Current-source inverter has improved to the new Z-source inverter, with a unique X-shaped network in it. This Impedance-source inverter can provide a single stage power conversion concept where as the traditional inverter requires two stage power conversion for renewable energy applications. A new low cost solar cell powered Z-source inverter system is simulated and the results are compared with the traditional Voltage-source inverter system. Performance analysis, simulation and comparison have been confirmed that the Z-source inverter system is more appropriate for photovoltaic application than their counterparts. Hardware implementation is done to validate the proposed system.

scholarly journals Lithium-Based Upconversion Nanoparticles for High Performance Perovskite Solar Cells

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2909
Author(s):  
Masfer Alkahtani ◽  
Anas Ali Almuqhim ◽  
Hussam Qasem ◽  
Najla Alsofyani ◽  
Anfal Alfahd ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Fill Factor ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Upconversion Nanoparticles ◽  
Lithium Ions ◽  
Energy Applications ◽  
Higher Power

In this work, we report an easy, efficient method to synthesize high quality lithium-based upconversion nanoparticles (UCNPs) which combine two promising materials (UCNPs and lithium ions) known to enhance the photovoltaic performance of perovskite solar cells (PSCs). Incorporating the synthesized YLiF4:Yb,Er nanoparticles into the mesoporous layer of the PSCs cells, at a certain doping level, demonstrated a higher power conversion efficiency (PCE) of 19%, additional photocurrent, and a better fill factor (FF) of 82% in comparison to undoped PSCs (PCE = ~16.5%; FF = 71%). The reported results open a new avenue toward efficient PSCs for renewable energy applications.

Multi-Input Boost Converter for Hybrid PV and Wind Generator Systems

2014 ◽  
Vol 925 ◽  
pp. 619-624
Author(s):  
Y.M.Y. Buswig ◽  
Wahyu Mulyo Utomo ◽  
Zainal Alam Haron ◽  
S.S. Yi
Keyword(s):  
Renewable Energy ◽  
High Performance ◽  
High Efficiency ◽  
Energy System ◽  
Energy Applications ◽  
Wind Generator ◽  
Hybrid Renewable Energy System ◽  
The Status ◽  
Constant Output ◽  
Hybrid Renewable Energy

A renewable energy source that works alone can’t achieve customers’ requirements for a stable power supply. Therefore, the paper proposes a multi-input converter for hybrid renewable energy system. This converter is designed for two input sources, PV and wind generator in order to design high efficiency and high performance converters for renewable energy applications. The proposed multi-input converter is composed by interleaved technique with two step-up converters and the two inputs are accommodated with some extra semiconductors, inductances and diodes. The modes of operation based on the status of the four switches, where S1 and S2 operate as main switches in order to deliver energy from both voltage sources. A constant output power to the load is provided by switching S3 switch, which guarantied the appropriate output voltage by reduce the ripple and improve the reliability. Simulations of multi-input converter has been performed using MATLAB/SIMULINK. The simulation results confirm the validity of the proposed method, which can be seen as a promising new topology that ensure multi-input converter suitable for renewable energy applications.

scholarly journals A New 7-Level Symmetric Multilevel Inverter with Minimum Number of Switches

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
S. Umashankar ◽  
T. S. Sreedevi ◽  
V. G. Nithya ◽  
D. Vijayakumar
Keyword(s):  
Renewable Energy ◽  
Multilevel Inverter ◽  
Multilevel Inverters ◽  
Energy Applications ◽  
Switching Losses ◽  
Performance Quality ◽  
Wide Range ◽  
Minimum Number ◽  
Inverter Topology ◽  
Installation Cost

Though the multilevel inverters hold attractive features, usage of more switches in the conventional configuration poses a limitation to its wide range application. Therefore, a renewed 7-level multilevel inverter topology is introduced incorporating the least number of unidirectional switches and gate trigger circuitry, thereby ensuring the minimum switching losses, reducing size and installation cost. The new topology is well suited for drives and renewable energy applications. The performance quality in terms of THD and switching losses of the new MLI is compared with conventional cascaded MLI and other existing 7-level reduced switch topologies using carrier-based PWM techniques. The results are validated using MATLAB/SIMULINK.

scholarly journals Evaluation and Improvement of a Transformerless High-Efficiency DC-DC Converter for Renewable Energy Applications Employing a Fuzzy Logic Controller

2021 ◽  
Author(s):  
S. Saravanan ◽  
P. Usha Rani ◽  
Mohan P. Thakre
Keyword(s):  
Fuzzy Logic ◽  
Renewable Energy ◽  
Fuzzy Logic Controller ◽  
High Efficiency ◽  
Low Cost ◽  
Experimental Result ◽  
Cuk Converter ◽  
Energy Applications ◽  
Switching Losses ◽  
Voltage Conversion

This article discusses a transformer-free, high-efficiency DC-DC converter besides renewable energy applications. The traditional buck-boost, classic Zeta, Sepic, and Cuk converter does have the benefits of a simple design, low cost, as well as the capacity to execute voltage step-up and step-down. Conversely, because of the detrimental consequences of the parasitic constraints of the device, the voltage conversion gain of the traditional DC-DC converter is much more restricted and the efficiency is also significantly smaller, whereas this proposed converter does have a higher voltage gain and efficiency because it is used in a single power switch, resulting in reduced switching losses and voltage stress. The said converter's design is very simple, which simplifies the operation control and reduces switching and conduction losses, leading to an efficiency of 97.4 percent. This converter seems to have the same capabilities as the Zeta converter, including continuous desired output current and desired buck-boost operation. Such an article offers the operation principle and steady evaluation, as well as a comparison with other existing high step-up configurations. The proposed converter employs a fuzzy logic controller, which improves the voltage level as well as reduces the time taken to set the voltage output of a conventional PI and ANN controller, especially in comparison to the FLC controller. For deployment, Experimental Result and MATLAB/Simulink has been used, and the modeling results indicate that the proposed controller performance has improved

Lossless Dynamic Models of the Quasi-Z-Source Converter Family

2011 ◽  
Vol 29 (1) ◽  
pp. 73-78 ◽  
Author(s):  
Dmitri Vinnikov ◽  
Oleksandr Husev ◽  
Indrek Roasto
Keyword(s):  
Renewable Energy ◽  
Dynamic Models ◽  
Energy Applications

Lossless Dynamic Models of the Quasi-Z-Source Converter FamilyThis paper is devoted to the quasi-Z-source (qZS) converter family. Recently, the qZS-converters have attracted attention because of their specific properties of voltage boost and buck functions with a single switching stage, which could be especially beneficial in renewable energy applications. As main representatives of the qZS-converter family, the traditional quasi-Z-source inverter as well as two novel extended boost quasi-Z-source inverters are discussed. Lossless dynamic models of these topologies are presented and analyzed.

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