Analytical Model of the Half-Bridge Series Resonant Inverter for Improved Power Conversion Efficiency and Performance

2015 ◽  
Vol 30 (8) ◽  
pp. 4128-4143 ◽  
Author(s):  
Hector Sarnago ◽  
Oscar Lucia ◽  
Arturo Mediano ◽  
Jose M. Burdio
Keyword(s):  
Power Conversion Efficiency ◽  
Analytical Model ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Resonant Inverter ◽  
Series Resonant ◽  
And Performance ◽  
Series Resonant Inverter

scholarly journals Effect of counter-ions on the properties and performance of non-conjugated polyelectrolyte interlayers in solar cell and transistor devices

RSC Advances ◽  
2019 ◽  
Vol 9 (36) ◽  
pp. 20670-20676 ◽  
Author(s):  
Ju Hwan Kang ◽  
Yu Jung Park ◽  
Myung Joo Cha ◽  
Yeonjin Yi ◽  
Aeran Song ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Device Performance ◽  
Conjugated Polyelectrolyte ◽  
Interfacial Layers ◽  
Counter Ions ◽  
And Performance

Non-conjugated polyelectrolytes are empolyed as interfacial layers at the electrodes of solar cells and transistor devices to improve the power conversion efficiency (PCE) and device performance.

High Power Density Multi-Mosfet-Based Series Resonant Inverter for Induction Heating Applications

2016 ◽  
Vol 7 (1) ◽  
pp. 107 ◽  
Author(s):  
M. Saravanan ◽  
A. Ramesh Babu
Keyword(s):  
Conversion Efficiency ◽  
Induction Heating ◽  
High Frequency ◽  
Low Voltage ◽  
Resonant Inverter ◽  
Power Simulation ◽  
Series Resonant ◽  
Series Resonant Inverter ◽  
State Resistance ◽  
Practical Constraints

Induction heating application uses uniquely high frequency series resonant inverter for achieving high conversion efficiency. The proposed work focus on improving the practical constraints in requiring the cooling arrangements necessary for switching devices used in resonant inverter due to higher switching and conduction losses. By introducing high frequency Multi- MOSFET based series resonant inverter for the application of induction heating with the following merits such as minimum switching and conduction losses using low voltage grade  of automotive MOSFET’s and higher conversion efficiency with high frequency operation. By adding series combination of low voltage ratedMulti MOSFET switches, temperature variation according to the on-state resistance issues can be avoided by sharing the voltage across the switches depends on number switches connected in the bridge circuit without comprising existing system performance parameter such as THD, power factor, output power. Simulation results also presents to verify that the proposed system achieve higher converter efficiency.

scholarly journals Performance Improvement of PWM Control Methods for Voltage Step-Down in Series Resonant DC–DC Converters

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4569
Author(s):  
Vadim Sidorov ◽  
Andrii Chub ◽  
Dmitri Vinnikov
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Pulse Width Modulation ◽  
Renewable Energy Sources ◽  
Power Conversion ◽  
Input Voltage ◽  
Voltage Regulation ◽  
Switching Frequency ◽  
Semiconductor Switches ◽  
Series Resonant

The paper is focused on galvanically isolated series resonant DC–DC converters (SRCs) with a low quality factor of the resonant tank. These converters provide input voltage regulation at fixed switching frequency and good power density. Different modulation methods at the fixed switching frequency enable the implementation of the voltage buck functionality in these converters. The SRC under study is considered as a step-up front-end DC–DC converter for the integration of renewable energy sources in DC microgrids. The paper evaluates the voltage buck performance of the SRC achieved by using different pulse-width modulation (PWM) methods including conventional PWM and shifted PWM. Moreover, the new PWM methods, i.e., the hybrid shifted PWM (HSPWM), improved shifted PWM (ISPWM), and hybrid PWM (HPWM), are proposed to overcome the disadvantages of the existing methods. They improve the power conversion efficiency in the buck mode by reducing the power losses in the semiconductor switches and the isolating transformer of the SRC. The proposed and the existing methods are benchmarked in terms of the components stresses and power conversion efficiency. The presented findings have been experimentally validated by the help of a 200 W prototype, which demonstrated the lowest power loss in the case of the HPWM.

scholarly journals A Physics-Based Analytical Model for Current–Voltage Characteristics of Perovskite Solar Cells Incorporating Bulk Recombination

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3868
Author(s):  
M. Zahangir Kabir
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Power Conversion Efficiency ◽  
Analytical Model ◽  
Conversion Efficiency ◽  
Carrier Transport ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Current Voltage ◽  
Current Voltage Characteristics

A physics-based compact analytical model for studying the current–voltage characteristics of perovskite solar cells has been proposed by considering the external voltage-dependent carrier transport, exponential photon absorption, and bulk charge carrier recombination. The explicit analytical expressions for both the forward dark and photocurrents in perovskite solar cells are derived. The current in the external circuit is calculated considering the actual solar spectrum. The mathematical models are verified and useful physical parameters are extracted by comparing the model calculations with the published experimental results on various perovskite solar cells. The proposed model shows excellent agreement with the experimental results. The power conversion efficiency can be improved further by enhancing the carrier transport in the perovskite layer. The improvement in charge carrier transport enhances the fill factor and hence the power conversion efficiency.

A thiourea additive-based quadruple cation lead halide perovskite with an ultra-large grain size for efficient perovskite solar cells

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21824-21833 ◽  
Author(s):  
Jyoti V. Patil ◽  
Sawanta S. Mali ◽  
Chang Kook Hong
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Inorganic Perovskite ◽  
Halide Perovskite ◽  
Lead Halide

Controlling the grain size of the organic–inorganic perovskite thin films using thiourea additives now crossing 2 μm size with >20% power conversion efficiency.

The Effect of Donor Molecular Structure on Power Conversion Efficiency of Small-Molecule-Based Organic Solar Cells

2019 ◽  
Vol 16 (3) ◽  
pp. 236-243 ◽  
Author(s):  
Hui Zhang ◽  
Yibing Ma ◽  
Youyi Sun ◽  
Jialei Liu ◽  
Yaqing Liu ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Molecular Design ◽  
Power Conversion ◽  
The Relationship

In this review, small-molecule donors for application in organic solar cells reported in the last three years are highlighted. Especially, the effect of donor molecular structure on power conversion efficiency of organic solar cells is reported in detail. Furthermore, the mechanism is proposed and discussed for explaining the relationship between structure and power conversion efficiency. These results and discussions draw some rules for rational donor molecular design, which is very important for further improving the power conversion efficiency of organic solar cells based on the small-molecule donor.

Sign in / Sign up

Export Citation Format

Share Document