Results 31 to 40 of about 12,841,457 (249)

Robust repetitive feedback control of a three-phase grid connected inverter [PDF]

open access: yes, 2010
This paper discusses the design of a repetitive feedback controller for a grid-connected two-level three-phase voltagesource inverter connected between a DC source and the grid through an LCL filter.
Sharkh, S.M.   +8 more
core   +2 more sources

State and Space Vectors of the 5-Phase 2-Level VSI

open access: yesEnergies, 2020
The paper proposes a general description system of the five-phase two-level inverter. The two base methods are presented and discussed. The first one is based on the standard space vector transformation, while the other uses state vectors which enable ...
Jan Iwaszkiewicz, Adam Muc
doaj   +1 more source

A Five-Level Switched-Capacitor Based Transformerless Inverter With Boosting Capability for Grid-Tied PV Applications

open access: yesIEEE Access, 2023
Transformerless grid-connected inverters have attained a lot of research interest in renewable energy interface applications, due to certain promising properties like greater efficiency, light weight, affordable price, and tolerable power density.
Sudipto Mondal   +3 more
doaj   +1 more source

Buck-boost converter Fed nine level cascaded H-bridge inverter [PDF]

open access: yes
This research investigates on simulation of a traditional cascaded H-bridge (CHB) five-level inverter and proposes a nine-level cascaded H-bridge inverter system. The performance of both five-level and nine-level inverter systems is evaluated by modeling
Babu, R. Samuel Rajesh   +2 more
core   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

A NEW STRUCTURE OF FIVE-LEVEL DIODE CLAMPED INVERTER WITH REDUCING ITS ELEMENTS

open access: yesMağallaẗ Al-kūfaẗ Al-handasiyyaẗ, 2018
At the high power switching circuit's applications, when the harmonic distortion is harmful, a multi-level diode clamped inverter is useful, especially when reduced total harmonic distortion and high power are desired.
Othman M. Anssari
doaj   +1 more source

Design and Analysis of Three-Phase Three-Level PWM Inverter [PDF]

open access: yes, 2010
Design of three-phase three level PWM inverter and analysis of the output current harmonics are presented in this paper. The three-level inverter is designed to supply three-phase load and it is controlled by FPGA under several modulation techniques ...
Dahono, Pekik Argo
core  

Epigenetic silencing of the liver‐specific lncRNA LUNAR promotes liver cancer progression via NOTCH activation

open access: yesMolecular Oncology, EarlyView.
LUNAR is a liver‐specific long noncoding RNA (lncRNA) that is highly expressed in normal liver but becomes epigenetically silenced in hepatocellular carcinoma through promoter hypermethylation. Loss of LUNAR is associated with NOTCH activation, epithelial–mesenchymal transition, and metastasis, whereas restoring LUNAR restrains metastatic progression ...
Se Ha Jang   +9 more
wiley   +1 more source

A Switched-Capacitor-Based Five-Level ANPC DC–AC Power Converter With Full DC-Bus Utilization

open access: yesIEEE Access
This paper presents a self-balanced five-level active neutral-point-clamped inverter with unity voltage gain. The proposed topology consists of seven active switches, six diodes, a low-voltage switched capacitor, and two dc-link capacitors to generate a ...
Rezwan Allabasha   +5 more
doaj   +1 more source

Simulation of SIMO based DC-DC Converter for Multi Level Solar PV Inverter [PDF]

open access: yesE3S Web of Conferences
Simulation of SIMO based DC-DC Converter for multi level Solar PV Inverter is presented in this paper. In order to reduce the number of distinct DC supplies for an H-bridge inverter SIMO DCDC converter is applied which in turn allows the usage of single ...
Agrawal Ajay   +3 more
doaj   +1 more source

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