Results 71 to 80 of about 1,061,367 (275)

A comprehensive review of impedance source network DC circuit breaker topologies

open access: yesCogent Engineering
Dc microgrids (MG) have drawn more attention due to the demand for renewable energy sources, energy storage devices in distributed generation, and the separation of DC loads requiring more power converters.
Marwan R. Abed   +3 more
doaj   +1 more source

Two Inputs Five-Level Quasi-Z-Source Inverter [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2016
This paper combines quasi-Z-source into a typical five-level inverter, which includes two dc voltage sources, two quasi-Z-sources and five switching devices.
A. Baghbany Oskouei   +2 more
doaj  

Voltage Type Z-source Converters: Overview of the Main Topologies

open access: yesEletrônica de Potência, 2012
This paper presents a review in terms of new configurations involving the Z-source converter concept. Since its first appearance, it is evident the importance assumed by the Z-source converter in the last years as a new topological structure with ...
Euzeli C. dos Santos Jr.   +3 more
doaj   +1 more source

DC Link Voltage Control of Enhanced Bidirectional Z Source Inverter with Improved ADRC

open access: yesJournal of Harbin University of Science and Technology, 2020
An improved auto disturbance rejection control technique ( ADRC) is proposed to control the DC link voltage of the enhanced bidirectional Z source inverter. Firstly,the basic working principle of the enhanced bidirectional Z-source inverter is introduced,
YAN Jing-bin   +4 more
doaj   +1 more source

Predicting the Future Burden of Renal Replacement Therapy in Türkiye Using National Registry Data and Comparative Modeling Approaches

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic kidney disease is a growing public health problem worldwide, and the number of patients requiring renal replacement therapy is steadily increasing. Türkiye has experienced a similar rise in both the incidence and prevalence of renal replacement therapy over the past decades; however, national‐level projections of future ...
Arzu Akgül   +2 more
wiley   +1 more source

Cascaded Multilevel Inverter Based on Quasi-Z-Source Converter: Analysis, Design and Study of Optimal Structures

open access: yesIranian Journal of Electrical and Electronic Engineering, 2019
In this paper, a new topology for cascaded multilevel inverter based on quasi-Z-source converter is proposed. In the proposed topology the magnitude of output DC voltage is not limited to the sum of magnitude of DC voltage sources.
E. Babaei   +2 more
doaj  

A quantitative harmonics analysis approach for sinusoidal pulse‐width‐modulation based Z‐source inverters

open access: yesIET Power Electronics, 2022
The shoot‐through (ST) states are essential for the operation of sinusoidal pulse‐width‐modulation (SPWM) based Z‐source inverters. However, the insertion of shoot‐through state unavoidably leads to output harmonics which is greatly affected by its ...
Wenzheng Xu   +5 more
doaj   +1 more source

The hard X-ray tails in neutron star low mass X-ray binaries: BeppoSAX observations and possible theoretical explanation of the GX 17+2 case [PDF]

open access: yes, 2007
We report results of a new spectral analysis of two BeppoSAX observations of the Z source GX 17+2. In one of the two observations the source exhibits a powerlaw-like hard (> 30 keV) X-ray tail which was described in a previous work by a hybrid ...
Asai K.   +6 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Current control of Z-source inverter for hybrid energy storage system of mine-used electric vehicle

open access: yesGong-kuang zidonghua, 2019
Aiming at problems of low voltage gain, low power density and low conversion efficiency of traditional Z-source inverter or single-switch inductor Z-source inverter used in hybrid energy storage system of mine-used electric vehicle, a novel Z-source ...
WU Zhen, CHEN Jing, DANG Jiao
doaj   +1 more source

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