Results 21 to 30 of about 2,216,872 (294)

Efficiency and Power Loss Distribution in a High-Frequency, Seven-Level Diode-Clamped Inverter

Energies, 2023
The paper presents efficiency and power loss analysis in a high-frequency, seven-level diode-clamped inverter (7LDCB). The inverter is composed of four-level (4L) diode-clamped branches based on MOSFET transistors and Si Schottky diodes.
Robert Stala, Szymon Folmer, Adam Penczek, Jakub Hachlowski, Zbigniew Mikoś   +4 more
doaj   +1 more source

Lifetime estimation of DC-link capacitors in adjustable speed drives under grid voltage unbalances [PDF]

, 2018
Electrolytic capacitor with a DC-side inductor is a typical DC-link filtering configuration in grid-connected diode rectified Adjustable Speed Drives.
Wang, Haoran, Zare, Firuz, Kumar, Dinesh, Blaabjerg, Frede, Blaabjerg, Frede; id_orcid, Davari, Pooya, Wang, Huai   +6 more
core   +1 more source

Comprehensive AC performance analysis of ceramic capacitors for DC link usage

, 2022
S.1240-1246The paper explains the needs for using of an additional DC link capacitor closely to fast switching semiconductor and derives design rules for it.
Klein, K., Hoene, E., Lang, K.-D.
core   +1 more source

Power Decoupling Control for V2G/G2V/PV2G Operation Modes in Single-Phase PV/Battery Hybrid Energy System With Low DC-Link Capacitance

IEEE Access, 2021
Three-port intelligent conversion systems, interfacing photovoltaic (PV) arrays and electric vehicles (EVs), with an electrical grid, are a promising flexible infrastructure for future smart grids.
Zhigang Zhang, Bin Liu, Shaojian Song
doaj   +1 more source

Lifetime Prediction of DC-link Capacitors in Multiple Drives System Based on Simplified Analytical Modeling [PDF]

, 2021
Lifetime prediction of dc-link capacitors in a single drive has been discussed before, which indicates that the capacitor in a standard drive meets serious reliability challenges and in a slim drive does not.
Huang, Shili, Wang, Haoran, Zhu, Guorong, Kumar, Dinesh, Wang, Qian, Deng, Xiangtian, Wang, Huai   +6 more
core   +1 more source

A high-reliability PV system by replacing electrolytic capacitors with film capacitors

Energy Reports, 2023
Electrolytic capacitors are considered a vulnerable link in PV systems. In order to enhance the system reliability and lifespan, this paper investigates a PV system without electrolytic capacitors. First, the system structure is introduced.
Wenping Zhang, Yiming Wang, Po Xu, Donghui Li, Baosong Liu   +4 more
doaj   +1 more source

Estimation of Current RMS for DC Link Capacitor of S-PMSM Drive System

Kongzhi Yu Xinxi Jishu, 2023
The six-phase permanent magnet synchronous motor (PMSM) drive system has the characteristics of low voltage, high power, small torque ripple, flexible control, and high fault tolerance compared with traditional three-phase PMSM drive systems. The DC link
ZHANG Zhigang, CHANG Jiamian, ZHANG Pengcheng   +2 more
doaj   +3 more sources

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

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

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