Results 61 to 70 of about 56,549 (215)

The Architecture and Key Technologies of Fault Inversion System for Hybrid UHV AC/DC Power Grid

open access: yes, 2020
The security and stability problems of power grid have become increasingly prominent for the complexity and fragility of large-scale hybrid AC/DC. In order to quickly and accurately simulate the fault characteristics of power grid, a fault inversion ...
Yiding JIN   +3 more
core   +1 more source

Optimal Power Flow for Unbalanced Bipolar DC Distribution Grids

open access: yesIEEE Access, 2018
The emergence of distributed energy resources can lead to congestion in distribution grids. DC distribution grids are becoming more relevant as more sources and loads connected to the low voltage grid use dc. Bipolar dc distribution grids with asymmetric loading can experience partial congestion resulting in a nodal price difference between the two ...
Laurens Mackay   +5 more
openaire   +5 more sources

Improved A-STAR Algorithm for Power Line Inspection UAV Path Planning

open access: yesEnergies
The operational areas for unmanned aerial vehicles (UAVs) used in power line inspection are highly complex; thus, the best path planning under known obstacles is of significant research value for UAVs.
Yanchu Li   +5 more
doaj   +1 more source

DC micro grid control system based on intelligent power units

open access: yes, 2022
8 S.In this paper a compact all-in-one DC Micro Grid Control System is presented. The system is based on a novel modular approach using intelligent power units. The DC Micro Grid Control System comprises a 3.7 kW insulating bidirectional AC/DC converter,
Endres, S., Schmenger, J., Zeltner, S.
core  

DC-DC Boost Converter with Constant Output Voltage for Grid Connected Photovoltaic Application System

open access: yes, 2010
The main purpose of this paper is to introduce an approach to design a DC-DC boost converter with constant output voltage for grid connected photovoltaic application system.
Chan, Pui Weng
core  

Comparison of DC-Link Capacitor Types Under Various Grid Conditions

open access: yes, 2019
A DC/AC converter can face negative conditions of power systems such as instability. One of the most crucial necessities of the grid is voltage stability. There are some effects of voltage unbalance for grid-tied DC/AC converters.
Poyrazoğlu, Göktürk   +7 more
core   +1 more source

Grid-connected transformerless single-phase photovoltaic inverters: an evaluation on DC current injection and PV array voltage fluctuation

open access: yes, 2009
A number of political, environmental and technical factors have resulted in the increase of implementation of renewable technology including grid connected photovoltaic inverters.
Morris, Claude
core   +1 more source

Integrated PV and multilevel converter system for maximum power generation under partial shading conditions [PDF]

open access: yes, 2013
The emerging trend towards the harnessing of the electrical power from solar energy has increased the research effort in power electronics applications.
Abdalla, Imadeddin Abdalla
core  

A New Structure for PMG-Based WECSs With Battery Storage Systems

open access: yesIEEE Access, 2020
This paper develops and tests the performance of a new structure for grid-connected permanent magnet generator (PMG)-based wind energy conversion systems (WECSs) that have battery storage units (BSUs). The new structure is called the split dc-bus, and it
S. A. Saleh, X. F. St. Onge
doaj   +1 more source

The Research on DC Loop of Regional Power Grid Caused by the Operation of the Subway

open access: yes, 2020
The operation of the subway would change the distribution of the ground potential along the rail, forming a DC loop through the grounding points in a nearby regional power grid and threatening the operational safety of the power system.
Sha Chang, Shiying Wang, Lin Du
core   +1 more source

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