Results 21 to 30 of about 378,481 (208)

An Overview of HVDC Technology

open access: yesEnergies, 2020
There is a growing use of High Voltage Direct Current (HVDC) globally due to the many advantages of Direct Current (DC) transmission systems over Alternating Current (AC) transmission, including enabling transmission over long distances, higher ...
Neville R. Watson, Jeremy D. Watson
doaj   +1 more source

Analysis of loss distribution of Conventional Boost, Z-source and Y-source Converters for wide power and voltage range

open access: yesTransactions on Environment and Electrical Engineering, 2017
Boost converters are needed in many applications which require the output voltage to be higher than the input voltage. Recently, boost type converters have been applied for industrial applications, and hence it has become an interesting topic of research.
Brwene Salah Gadalla   +3 more
doaj   +1 more source

Comparative Study Between Sliding Mode Controller and PI Controller for AC/DC Bridgeless Converter Under Uncertain Parameters

open access: yesActa Electrotechnica et Informatica, 2022
In this paper, a comparative study between nonlinear sliding mode controller (SMC) and standard PI controller for stabilizing bridgeless AC/DC converter under uncertain parameters is presented.
Almobaied Moayed, Musleh Ahmed Mosa
doaj   +1 more source

Stability of interacting grid-connected power converters

open access: yesJournal of Modern Power Systems and Clean Energy, 2013
The power grid in a typical micro distribution system is non-ideal, presenting itself as a voltage source with significant impedance. Thus, grid-connected converters interact with each other via the non-ideal grid.
Cheng Wan   +3 more
doaj   +1 more source

An Overview of Voltage Boosting Techniques and Step-Up DC-DC Converters Topologies for PV Applications

open access: yesEnergies, 2021
The development of technologies to improve the performance of photovoltaic (PV) module integrated converters (MICs) is fundamental to increase the use of distributed generation systems with photovoltaic power source in large urban centers, mainly for ...
Márcio R. S. de Carvalho   +5 more
doaj   +1 more source

A Single-Phase Embedded Z-Source DC-AC Inverter

open access: yesThe Scientific World Journal, 2014
In the conventional DC-AC inverter consisting of two DC-DC converters with unipolar output capacitors, the output capacitor voltages of the DC-DC converters must be higher than the DC input voltage. To overcome this weakness, this paper proposes a single-
Se-Jin Kim, Young-Cheol Lim
doaj   +1 more source

Virtual Oscillator Control of Equivalent Voltage-Sourced and Current-Controlled Power Converters

open access: yesEnergies, 2019
The dynamics of a general class of weakly nonlinear oscillators can be used to control power converters to create a self-forming AC network of distributed generators. Many control stability results for these “virtual” oscillators consider the
Daniel F. Opila   +3 more
doaj   +1 more source

Multiple Input-Single Output DC-DC Converters Assessment for Low Power Renewable Sources Integration

open access: yesEnergies, 2023
This paper presents a comparison of Isolated (Flyback) and non-Isolated (Buck) multiple input-single output (MISO) DC-DC converters. The analysis of DC-DC converters is based on pulsed voltage source cells (PVSC).
Joaquin Soldado-Guamán   +5 more
doaj   +1 more source

Quasi Z‐source inverter with switched‐capacitor‐inductor for enhancing boost factor

open access: yesIET Power Electronics, 2021
Two structures are proposed based on the quasi Z‐source inverter (qZSI), which can significantly raise the output voltage in applications, including photovoltaic and fuel cells, in which the input voltage is low.
Jamal Abbasi Bolaghi   +3 more
doaj   +1 more source

ESTIMATION OF LOSSES IN THE MULTI-PHASE FREQUENCY CONVERTERS FOR ELECTRIC GROUND TRACTION SYSTEM OF AIRCRAFT

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
Improving the energy efficiency of vehicles is an essential feature of scientific and technical progress. One means of increasing the energy efficiency of transport is the introduction of electric drive with multiphase induction motors.
A. G. Logacheva   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy