Results 11 to 20 of about 212,695 (330)

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

Power loss investigation in HVDC for cascaded H-bridge multilevel inverters (CHB-MLI) [PDF]

open access: yes, 2015
In the last decade, the use of voltage-source multilevel inverters in industrial and utility power applications has been increased significantly mainly due to the many advantages of multilevel inverters, compared to conventional two level inverters ...
Alamri, B, Darwish, M
core   +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

A voltage-source inverter for microgrid applications with an inner current control loop and an outer voltage control loop [PDF]

open access: yes, 2009
Distributed generation (DG) units are commonly inter-faced to the grid by using voltage-source inverters (VSI’s). Extension of the control of these inverters allows to improve the power quality if the main power grid is disturbed or disconnected. In this
De Belie, Frederik   +4 more
core   +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

Precise modelling of switching and conduction losses in cascaded h-bridge multilevel inverters [PDF]

open access: yes, 2014
Nowadays, voltage source multilevel inverters are being used extensively in industry due to its many advantages, compared to conventional two level inverters, such as higher output voltage at low switching frequency, low voltage stress(dv/dt), lower ...
Alamri, B, Darwish, M
core   +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

Home - About - Disclaimer - Privacy