Results 71 to 80 of about 56,549 (215)

Standalone DC microgrids as complementarity dynamical systems: Modeling and applications [PDF]

open access: yes, 2015
It is well known that, due to bimodal operation as well as existent discontinuous differential states of batteries, standalone microgrids belong to the class of hybrid dynamical systems of non-Filippov type.
Alireza Maheri (16272944)   +11 more
core   +1 more source

Decoupled control of grid connected photovoltaic system using fractional order controller

open access: yesAin Shams Engineering Journal, 2018
In a grid connected photovoltaic (PV) system, dynamic control strategy is essential to use the solar energy efficiently as well as for an energy optimization.
M. Lakshmi, S. Hemamalini
doaj   +1 more source

Power Quality Improvement Wind Energy System Using Cascaded Multilevel Inverter [PDF]

open access: yes, 2013
In this paper, a wind energy conversion system based on a cascaded H-bridge multilevel inverter (CHBMLI) topology has been proposed to be used for the grid interface of large split winding alternators (SWAs).
Kumar, A. S. (A)   +5 more
core   +1 more source

Control Strategy of Power Conversion System under Unbalanced Grid Voltage

open access: yes, 2022
Unbalanced grid voltage will cause voltage fluctuations on the DC side and active power fluctuations on the grid side, which seriously affects the safety and energy conversion efficiency of the energy storage battery system. Aiming at the above problems,
Mingyong OU   +6 more
core   +1 more source

An Active Balancer of Currents for Bipolar DC Power Grids

open access: yes2025 IEEE Seventh International Conference on DC Microgrids (ICDCM)
DC power grids (DCPGs) are gaining more significance, predominantly due to the natural DC operation of technologies such as renewables, energy storage systems, and electric vehicles. Particularly, thanks to power electronics, bipolar DCPGs are gaining more preponderance since they enable reducing power losses, increasing power density, and averting ...
Monteiro, Vitor   +5 more
openaire   +2 more sources

Design and Line Fault Protection Scheme of a DC Microgrid Based on Battery Energy Storage System

open access: yesEnergies, 2018
Currently, the Direct-Current (DC) microgrid has been gaining popularity because most electronics devices require a DC power input. A DC microgrid can significantly reduce the AC to DC energy conversion loss.
Abdul Motin Howlader   +3 more
doaj   +1 more source

A Review on Transformerless Step-Up Single-Phase Inverters with Different DC-Link Voltage for Photovoltaic Applications

open access: yesEnergies, 2019
Photovoltaic (PV) energy has been competitive in power generation as an alternative to fossil energy resources over the past decades. The installation of grid-connected solar energy systems is expected to increase rapidly with the fast development of the
Wenjie Liu   +3 more
doaj   +1 more source

Usefulness of DC power flow for active power flow analysis with flow controlling devices

open access: yes, 2006
DC power flow is a commonly used tool for contingency analysis. Recently, due to its simplicity and robustness, it also becomes increasingly used for the real-time dispatch and techno-economic analysis of power systems.
Purchala, K   +9 more
core  

A new grid side inertia support control method for cascaded power converters in Bi-directional EV chargers

open access: yesFrontiers in Energy Research
To provide inertia support to the power grid, the grid side frontend DC/AC inverter of the bidirectional electric vehicle (EV) charging facilities can use the virtual synchronous generator (VSG) control in its grid-side DC/AC converter.
Yan Tian   +6 more
doaj   +1 more source

A Three-Phase Bidirectional Grid-Connected AC/DC Converter for V2G Applications

open access: yesJournal of Control Science and Engineering, 2020
The smart grid and electric vehicles (EVs) are widely used all over the world. As the key role, the Vehicle-to-Grid (V2G) has been attracting increasing attention.
Jingang Han   +3 more
doaj   +1 more source

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