Results 11 to 20 of about 6,761 (247)

A Simple Approach to Reject DC Offset for Single-Phase Synchronous Reference Frame PLL in Grid-Tied Converters

open access: yesIEEE Access, 2020
Synchronous reference frame phase-locked loop (SRF-PLL) is widely used for grid voltage synchronization in single-phase grid-connected power converters. However, in the actual situation, dc offset component may be introduced in the input of the PLL, due ...
Bin Liu   +7 more
doaj   +1 more source

Digital Controller Development Methodology Based on Real-Time Simulations with LabVIEW FPGA Hardware-Software Toolset [PDF]

open access: yesElectronics, 2013
In this paper, we exemplify the use of NI Lab-VIEW FPGA as a rapid prototyping environment for digital controllers. In our power electronics laboratory, it has been successfully employed in the development, debugging, and test of different power ...
Tommaso Caldognetto   +2 more
doaj   +1 more source

Grid Connection Using a Structure That Combines a Buck Converter and a Push-Pull Converter to Reduce the Low-Frequency Current Ripple of the Fuel-Cell

open access: yesIEEE Access, 2022
In a grid-connected power generation system using a fuel cell, the low-frequency ripple component must be maintained within an allowable range to improve the lifespan and efficiency of the fuel cell.
Gyoung-Jong Son   +2 more
doaj   +1 more source

Coordinated Control of Wind Energy Conversion System during Unsymmetrical Fault at Grid

open access: yesEnergies, 2022
High penetration of wind power into the grid necessitates the coordinated action of wind energy conversion systems and the grid. A suitable generation control is required to fulfill the grid integration requirements, especially during faults.
Hemant Ahuja   +4 more
doaj   +1 more source

Threshold Voltage Control in Dual‐Gate Organic Electrochemical Transistors

open access: yesAdvanced Materials Interfaces, 2023
Organic electrochemical transistors (OECTs) based on Poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonic acid) (PEDOT:PSS) are a benchmark system in organic bioelectronics.
Hsin Tseng   +9 more
doaj   +1 more source

Invertible classes

open access: yesTheoretical Computer Science, 2006
The paper studies the problem of invertibility of recursive operators which map \({\mathcal F}\) to \({\mathcal F}\), where \({\mathcal F}\) is a class of functions. Four increasingly stronger types of invertibility are introduced and it is shown that they are different.
Jain, S., Nessel, J., Stephan, F.
openaire   +2 more sources

Single-Phase Fault Tolerant Multilevel Inverter Topologies—Comprehensive Review and Novel Comparative Factors

open access: yesEnergies, 2022
Multilevel inverters (MLIs) are used in a variety of industrial applications in high- and medium-voltage systems. The modularity, high-power output from medium voltages, and low harmonic content are some of the advantages of MLIs. The reliability of MLIs
Haroon Rehman   +5 more
doaj   +1 more source

Invertible Subalgebras

open access: yesCommunications in Mathematical Physics, 2023
34 pages, 2 figures, (v2) includes a proof that any 1d invertible subalgebra is trivial, (v3) minor changes (v4) expanding the proof of A ...
openaire   +3 more sources

Model-Based Fault Detection of Inverter-Based Microgrids and a Mathematical Framework to Analyze and Avoid Nuisance Tripping and Blinding Scenarios

open access: yesEnergies, 2018
Traditional protection methods such as over-current or under-voltage methods are unreliable in inverter-based microgrid applications. This is primarily due to low fault current levels because of power electronic interfaces to the distributed energy ...
Hashim A. Al Hassan   +4 more
doaj   +1 more source

Optimal Sizing of PV-Diesel-Battery System Using Different Inverter Types

open access: yesIEEE Access, 2021
Different inverters types have different technical specifications and costs which contribute to the changes of inverter type decisions. It is therefore important to know which inverter is more advantageous for certain criteria. In this paper, the central,
Erica M. Ocampo   +2 more
doaj   +1 more source

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