Results 41 to 50 of about 555 (246)

Investigation into different types of single-phase AC/DC convertors [PDF]

, 1995
The work detailed in the thesis compares the performance of single-phase thyristor bridge converters under different control strategies; considering in particular the efficiency, ac side power factor and harmonic content of the current and voltage ...
Vahik Babayan-Aghan (7203635)
core  

A selection principle of submodule switching state vectors for switching frequency reduction in voltage self‐balancing half‐bridge modular multilevel converters

IET Power Electronics
The problem of submodule switching frequency reduction in half‐bridge modular multilevel converters (HB‐MMCs) with capacitor voltage self‐balancing control is considered and explored in this paper.
Yiyuan Zhou, Liang Qin, Shiqi Yang, Qing Wang, Kaipei Liu   +4 more
doaj   +1 more source

A whole control strategy for cascaded H‐bridge rectifiers under distorted grid voltage and unbalanced load

IET Power Electronics, 2023
Control for single‐phase cascaded H‐bridge rectifier (CHBR) under distorted grid voltage is seldom discussed in the existing control methods; a modified direct power control (DPC) scheme is therefore proposed in this paper.
Haoran Liu, Lei Ma, Wensheng Song, Junjie Zhu, Lin Peng   +4 more
doaj   +1 more source

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

Advanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis, Filip Aniés, Yiyang Yu, Mohammed Ghadiyali, Hendrik Faber, Zhanibek Bizak, Youssef Kabri, Pavlos Tzourmpakis, Suman Mandal, Linqu Luo, Temur Maksudov, Mohamad Insan Nugraha, Harold F. Mazo‐Mantilla, Patrice Vanelle, Julie Broggi, Khaled N. Salama, Udo Schwingenschlögl, Martin Heeney, Atif Shamim, Thomas D. Anthopoulos   +19 more
wiley   +1 more source

Fault Tolerance Enhance DC-DC Converter Lifetime Extension [PDF]

, 2017
One of the most crucial renewable energy sources today is solar energy. Power convertors play an important role in adjusting the output voltage or current of photovoltaic (PV) systems.
Soulatiantork, P., Suresh Perinpanayagam, Mohammad Samie, Samie, Mohammad, FAIFER, MARCO, Samie, M., Perinpanayagam, S., Perinpanayagam, Suresh, Alireza Alghassi, Adrian Uriondo Del Pozo, Alghassi, Alireza, Pozo, Adrian Uriondo Del, Faifer, M., Payam Soulatiantork, Marco Faifer, Uriondo Del Pozo, Adrian, Alghassi, A., SOULATIANTORK, PAYAM, Del Pozo, A.U.   +18 more
core   +1 more source

SWISS rectifier structure sector boundary current distortion suppression based on multi‐step predictive control

The Journal of Engineering
The SWISS rectifier is a three‐phase BUCK type Power Factor Correction rectifier with the advantages of adjustable output full voltage range, low voltage stress in the back stage devices, and high efficiency.
Zhun Cheng, Jiangwei Deng, Bing Luo, Yang Zhang   +3 more
doaj   +1 more source

Giant Orbital Rashba–Edelstein Effect in Crystalline Cu2O/Cu Heterostructures

Advanced Materials, EarlyView.
An enhanced orbital Rashba–Edelstein effect is demonstrated in a crystalline Cu2O/Cu heterostructure, compared to naturally oxidized CuOx structures, highlighting the critical role of crystallinity and interface control in orbital torque generation. The resulting spin torque conductivity exceeds that of Pt, indicating the potential of orbital torque ...
San Ko, Jaimin Kang, Su Jae Kim, Hanhwi Jang, Do‐Kyeong Nam, Minseok Kang, Sunghoon Kim, Yeon Sik Jung, Se‐Young Jeong, Kab‐Jin Kim, Byong‐Guk Park   +10 more
wiley   +1 more source

New multilevel inverter based on reduced switch basic cell for high voltage levels

IET Power Electronics
In this study, to solve total harmonic distortion (THD) and voltage stress on switches, challenges have been made by presenting a new multi‐level inverter (MLI). The proposed topology can operate with both symmetric and asymmetric sources.
Ali Seifi, Seyed Hossein Hosseini, Mehrdad Tarafdar Hagh, Majid Hosseinpour   +3 more
doaj   +1 more source

Ti3C2Tx MXene/Silver Composite Foams For Lightweight, High‐Performance Electromagnetic Interference Shielding and Joule Heating

Advanced Materials Interfaces, EarlyView.
Ultrathin MXene/EMF composite foams achieve a specific shielding efficiency of 749.6 dB.dB·cm3$\mathrm{dB}\cdot {\mathrm{cm}}^{3}$/g, while the silver‐enhanced MXene/Ag/EMF reaches 81.4 dB shielding effectiveness at just 1.0 mm thickness. Both composites exhibit rapid Joule heating, retain stability up to 250∘C$^\circ{\rm C}$, and withstand 1000 ...
Abdullah A. Mahmood, Mingxuan Li, Vahid Rad, Mehdi Zarei, Chen‐Yu Yeh, Masoud Soroush, Guangyong Li, Paul W. Leu   +7 more
wiley   +1 more source

A novel reliability estimation methodology towards the design and implementation of symmetric multilevel inverter for long run applications

IET Power Electronics
Multilevel inverters (MLIs) are gaining attention in numerous applications due to their better performance attributes. Still, their utility in long‐run applications remains a critical concern due to the reliability issues.
Daki Krishnachaitanya, Chitra Annamalai, Maher Al‐Greer, Sitangshu Sekhar Biswas   +3 more
doaj   +1 more source