Results 61 to 70 of about 105,219 (309)

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Fully Decoupled Branch Energy Balancing Control Method for Modular Multilevel Matrix Converter Based on Sequence Circulating Components

open access: yesCSEE Journal of Power and Energy Systems
The modular multilevel matrix converter (M3C) is a potential frequency converter for low-frequency AC transmission. However, capacitor voltage control of high-voltage and large-capacity M3C is more difficult, especially for voltage balancing between ...
Zexin Zhao   +7 more
doaj   +1 more source

Power conditioning system control strategy for cascaded H-bridge converter battery energy storage system

open access: yesThe Journal of Engineering, 2019
Large capability for a cascaded H-bridge converter battery energy storage system is one of the effective tools to solve the grid-connection problem of renewable energy resource such as large-scale wind farm.
Hashim Hasabelrasul   +2 more
doaj   +1 more source

Simple Voltage Balancing Control of Four-Level Inverter

open access: yesElectronics
Multilevel inverters with improved voltage quality are widely used in applications such as motor control and electric vehicles. The four-level active neutral point clamped (4L-ANPC) inverter effectively meets the demands for high power density and low device voltage stress. However, balancing the capacitor voltage and reducing its low-frequency voltage
Shi Su   +5 more
openaire   +1 more source

A novel modular voltage balancing topology for active battery management system [PDF]

open access: yes, 2016
This paper proposes a novel modular voltage balancing topology for an active battery management system (BMS). The proposed topology consists of two power stages.
Afonso, João L.   +4 more
core   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

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

open access: yesIET 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   +4 more
doaj   +1 more source

Analysis and implementation of impedance source based Switched Capacitor Multi-Level Inverter

open access: yesEngineering Science and Technology, an International Journal, 2018
In recent years, a numerous Multi-Level Inverter (MLI) topologies are proposed with reduced number of switches and control complexity. An Impedance source based MLI structure with ability of additional boost is proposed in this work.
Manjunatha Budagavi Matam   +2 more
doaj   +1 more source

Inter-cluster Voltage Balancing Control of Modular Multilevel Cascaded Converter Under Unbalanced Grid Voltage

open access: yesJournal of Modern Power Systems and Clean Energy, 2022
This paper presents a novel inter-cluster direct current (DC) capacitor voltage balancing control scheme for the single-star configured modular multilevel cascaded converter (MMCC)-based static synchronous compensator (STATCOM) under unbalanced grid voltage.
Oghenewvogaga Oghorada   +4 more
openaire   +2 more sources

A branch current reallocation based energy balancing strategy for the modular multilevel matrix converter operating around equal frequency [PDF]

open access: yes, 2016
The Modular multilevel matrix converter (M3C) is a promising topology for medium-voltage, high-power applications. Due to the modular structure, it is scalable, produces high quality output waveforms and can be fault tolerant.
Fan, Boran   +4 more
core  

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