Results 31 to 40 of about 2,142,072 (286)

A Harmonic Voltage Injection Based DC-Link Imbalance Compensation Technique for Single-Phase Three-Level Neutral-Point-Clamped (NPC) Inverters

Energies, 2018
In three-level neutral-point-clamped (NPC) inverters, the voltage imbalance problem between the upper and lower dc-link capacitors is one of the major concerns.
Kyoung-Pil Kang, Younghoon Cho, Myung-Hyo Ryu, Ju-Won Baek   +3 more
doaj   +1 more source

Modelling approaches for DC-DC converters with switched capacitors

, 2015
In this paper we review relevant problems in the modelling of DC-DC converters with switched capacitors. We study several approaches that overcome the exposed modelling difficulties, addressing ideal and nonideal cases and using dynamic equations that ...
Rapisarda, P., Rosas Caro, J.C., Mayo Maldonado, J.C.   +2 more
core   +1 more source

Fabrication Routes for Ionic Conducting Fiber Strain Sensors

Advanced Engineering Materials, EarlyView.
Ionic conducting fiber strain sensors (ICFSs) offer compliant, textile‐integrable sensing. Thus far, the commercialization of ICFSs has been constrained by fiber fabrication routes. This review provides a fabrication‐centric analysis of ICFSs correlating processing strategies with material properties and scalability.
Leo John Kershaw, Zhanhong Yang, Anne Ladegaard Skov, Magdalena Skowyra   +3 more
wiley   +1 more source

Reduction of torque ripple in an electrolytic capacitor-less BLDC motor drive by simultaneous speed and torque control method

Ain Shams Engineering Journal, 2021
Brushless DC motors have been widely used in both industrial and non-industrial applications. Commercialization of these drives by reducing their price and increasing reliability, are among the main goals of manufacturers and researchers.
Ehsan Boloor Kashani, Abolfazl Halvaei Niasar   +1 more
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Peak-Zero-DPWM for Improving Performance of Single-Phase Five-Level T-Type NPC Inverter

IEEE Access
The discontinuous pulse width modulation (DPWM) improves the efficiency and reliability of power devices by reducing the switching losses. However, it aggravates the Total Harmonic Distortion (THD) of outputs and the reliability of DC-link capacitors ...
Taerim Ryu, Ui-Min Choi
doaj   +1 more source

Onboard Battery Chargers for Plug-in Electric Vehicles With Dual Functional Circuit for Low-Voltage Battery Charging and Active Power Decoupling

IEEE Access, 2018
This paper proposes a single-phase onboard battery charger (OBC) for plug-in electric vehicles, where the low-voltage (LV) battery charging circuit is utilized for an active power decoupling function.
Hoang Vu Nguyen, Dinh-Du To, Dong-Choon Lee   +2 more
doaj   +1 more source

Baseline for Split DC Link Design in Three-Phase Three-Level Converters Operating with Unity Power Factor Based on Low-Frequency Partial Voltage Oscillations

Machines, 2022
The study sets a baseline for split DC link capacitance values and voltage set points in three-phase three-level AC/DC (or DC/AC) converters operating with unity power factor.
Yarden Siton, Vladimir Yuhimenko, Dmitry Baimel, Alon Kuperman   +3 more
doaj   +1 more source

Investigation of the Effect of Operating Conditions on Reliability of DC-link Capacitors in Microgrids [PDF]

2020 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe), 2020
This paper considers a microgrid system where the impact of different non-ideal operating conditions on the reliability of the DC-link capacitor in three phase inverter systems is investigated. Rather than focusing on the lifetime of the capacitor, its failure rate is investigated and deemed a valuable indicator of the system’s reliability. The thermal
Berg, Sondre Johan Kjellin, Vadlamudi, Vijay Venu, Göthner, Fredrik T. B. W., Peftitsis, Dimosthenis   +3 more
openaire   +3 more sources

Reliability-oriented design and control of DC-link capacitors in power converter systems

, 2020
The reliability of power converter systems has demonstrated its unique value in the context of growing renewable energy generation worldwide. As a reliability-critical electrical component, the dc-link capacitor has drawn particular attention across ...
Lu, Nanjun
core   +1 more source