Results 41 to 50 of about 5,903 (225)

Optimum SHE for cascaded H-bridge multilevel inverters using: NR-GA-PSO, comparative study [PDF]

open access: yes, 2015
Selective Harmonic Elimination (SHE) is very widely applied technique in the control of multilevel inverters that can be used to eliminate the low order dominant harmonics.
Alamri, B, Darwish, M, Sallama, A
core   +1 more source

Control method of DC component for NNBI accelerator power supply

open access: yesEnergy Reports, 2023
In the high voltage power supply of the negative ion source neutral beam injection system (NNBI) accelerator, the three-phase three-level neutral point clamping (NPC) inverter, as an inverter module, has a detectable DC component in its output.
Hongfei Yong   +4 more
doaj   +1 more source

Investigation of FACTS devices to improve power quality in distribution networks [PDF]

open access: yes, 2011
Flexible AC transmission system (FACTS) technologies are power electronic solutions that improve power transmission through enhanced power transfer volume and stability, and resolve quality and reliability issues in distribution networks carrying ...
Rehman Shaikh, Muhammad Asim   +1 more
core   +1 more source

CRP Deficiency Rescues Periodontitis‐Induced Hippocampal Neurogenesis Impairment by Suppressing OPC‐Derived BMP4 Signaling in Rats

open access: yesAdvanced Science, EarlyView.
Chronic periodontitis elevates circulating CRP, which enters the hippocampus to upregulate BMP4 in oligodendrocyte precursor cells (OPCs), thereby impairing neurogenesis and inducing anxiety/depression‐like behaviors in rats. Counteracting this pathway, CRP deficiency helps confer functional resilience to OPCs.
Lingjie Li   +9 more
wiley   +1 more source

Thermal characteristic research of associated power devices based on three-level inverters and power-loss calculation

open access: yesCase Studies in Thermal Engineering, 2018
To reduce the size and improve the power density of three-level inverters, two or more associated power devices are assembled on the same heatsink, which, however, has a great influence on the thermal characteristics of heatsink because of heat ...
Shi-Zhou Xu   +4 more
doaj   +1 more source

A zero‐current‐transition soft‐switching technique for T‐type NPC three‐level inverter

open access: yesIET Power Electronics, 2023
Based on the commutation property of the T‐type neutral point clamped (T‐NPC) three‐level inverter, a novel zero‐current‐transition (ZCT) soft‐switching topology is proposed.
Jingyuan Yin, Xiuyuan Yao, Jinke Li
doaj   +1 more source

The Essential Role and the Continuous Evolution of Modulation Techniques for Voltage-Source Inverters in the Past, Present, and Future Power Electronics [PDF]

open access: yes, 2016
The cost reduction of power-electronic devices, the increase in their reliability, efficiency, and power capability, and lower development times, together with more demanding application requirements, has driven the development of several new inverter ...
García Franquelo, Leopoldo   +4 more
core   +1 more source

Temporal Interference Stimulation Enhances Neural Regeneration

open access: yesAdvanced Science, EarlyView.
Temporal interference (TI) stimulation is proposed as a non‐invasive approach to enhance neural regeneration in the deep brain. Theta‐band TI modulation selectively promotes neural progenitor cell differentiation in vitro and augments hippocampal neurogenesis in amouse model of Alzheimer's disease‐like amyloidosis.
Sofia Peressott   +15 more
wiley   +1 more source

Shoot-Through Control-Based Space Vector Modulation Approach for a Modified Z-Source NPC Power Inverter

open access: yesAdvances in Electrical and Electronic Engineering, 2019
Z-source Neutral Point Clamped (NPC) inverter is a converter topology that combines the benefits of both the impedance network by storing temporary energy released to the load for voltage boosting and NPC inverter by guaranteeing lower Total Harmonic ...
Samir Noui   +5 more
doaj   +1 more source

HERIC-Clamped and PN-NPC Inverters With Five-Level Output Voltage and Reduced Grid-Interfaced Filter Size

open access: yesIEEE Open Journal of Power Electronics, 2023
Transformerless grid-connected inverters with highly efficient and reliable inverter concept (HERIC) and positive-negative neutral point-clamped (PN-NPC) circuit configurations exhibit excellent performance in terms of overall efficiency, common-mode ...
Yaroslav Y. Syasegov   +6 more
doaj   +1 more source

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