Results 41 to 50 of about 2,798 (269)

Evaluation of Feasible Interlinking Converters in a Bipolar Hybrid Microgrid

Journal of Modern Power Systems and Clean Energy, 2020
A bipolar hybrid microgrid is a new topology which benefits from the advantages of both alternating current (AC) and direct current (DC) microgrids. Interlinking AC/DC converter is the key of this topology which has the following characteristics: being ...
Parviz Najafi, Abbas Houshmand Viki, Mahdi Shahparasti   +2 more
doaj   +1 more source

Behavior of Residual Current Devices at Earth Fault Currents with DC Component

Sensors, 2022
Low-voltage electrical installations are increasingly saturated with power electronic converters. Due to very high popularity of photovoltaic (PV) installations and the spread of electric vehicles (EV) as well as their charging installations, DC–AC and ...
Stanislaw Czapp, Hanan Tariq, Slawomir Cieslik   +2 more
doaj   +1 more source

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Electrosynthesis of Bioactive Chemicals, From Ions to Pharmaceuticals

Advanced Functional Materials, EarlyView.
This review discusses recent advances in electrosynthesis for biomedical and pharmaceutical applications. It covers key electrochemical materials enabling precise delivery of ions and small molecules for cellular modulation and disease treatment, alongside catalytic systems for pharmaceutical synthesis.
Gwangbin Lee, Sojin Kim, Myeongeun Lee, Kyoungsuk Jin, Jimin Park   +4 more
wiley   +1 more source

Hybrid AC/DC Microgrid: Systematic Evaluation of Interlinking Converters, Control Strategies, and Protection Schemes: A Review

IEEE Access
Hybrid AC/DC microgrid architecture is emerging as an interesting and attractive approach since it combines the prominent benefits of both AC and DC networks.
Muhammad Yasir Ali Khan, Haoming Liu, Yuquan Zhang, Jian Wang   +3 more
doaj   +1 more source

Pulse-width modulation of power electronic DC-AC converter

, 2021
The pulse-width modulation (PWM) technique is applied in the inverter (DC-AC converter) to output an AC waveform with variable voltage and variable frequency for use in mostly variable speed motor drives. This chapter provides an overview of the PWM techniques based on the most basic and classical sinusoidal carrier-based scheme to modern space vector ...
Iqbal, Atif, Lewicki, Arkadiusz, Morawiec, Marcin   +2 more
openaire   +2 more sources

Photo‐Switching Thermal and Lithium‐Ion Conductivity in Azobenzene Polymers

Advanced Functional Materials, EarlyView.
Light‐responsive azobenzene polymers control thermal and ionic transport simultaneously through structural transitions. UV illumination disrupts π–π stacking, converting crystalline trans states to amorphous cis configurations. Thermal conductivity drops from 0.45 to 0.15 W·m−1·K−1 while Li+ diffusivity increases 100 fold. This dual transport switching
Jaeuk Sung, Jungwoo Shin, Qiujie Zhao, Minjee Kang, Christopher Evans, Cecilia Leal, Paul V. Braun, David G. Cahill   +7 more
wiley   +1 more source

Research Insights on Recent Power Converter Topologies and Control Strategies for Wireless EV Chargers: A Comprehensive Study

IEEE Open Journal of Power Electronics
Electric vehicles (EVs) penetrating the transportation sector are accelerated through environmental concerns, low prices, and increased power density. At the same time, the technologies for wireless charging of EVs are advancing due to their convenience,
Venugopal Ramadoss, Balaji Chandrasekar, M.M.R. Ahmed, Dominic Savio A, Narayanamoorthi Rajamanickam, Thamer A. H. Alghamdi   +5 more
doaj   +1 more source

Mechanotransducing Organic Electrochemical Diode for Crosstalk‐Inhibited Artificial Skin

Advanced Functional Materials, EarlyView.
An innovative approach is presented to a stretchable mechanotransducing diode that unifies rectification and tactile‐sensing functionality. This approach enables to fabricate the diode that maintains a large rectification ratio (5 × 102) at a high operational frequency (100 Hz).
Taeyeong Kim, Seunggoo Baek, Garrett Lecroy, Hyeongseok Choi, Wonjeong Suh, Woosung Cho, Alberto Salleo, Unyong Jeong   +7 more
wiley   +1 more source

Comparative study between two-level and three-level high-power low-voltage AC-DC converters [PDF]

Bulletin of the Polish Academy of Sciences: Technical Sciences, 2019
The article presents the analysis of the simulation test results for three variants of the power electronics used as interface between the power network and superconducting magnetic energy storage (SMES) with the following parameters: power of 250 kW ...
A. Domino, K. Zymmer, M. Parchomiuk
doaj   +1 more source