Results 81 to 90 of about 1,580,706 (293)

Major technical issues with increased PV penetration on the existing electrical grid [PDF]

open access: yes, 2012
In the past decade, the installation of rooftop PV (Photovoltaic) systems has substantially increased in many countries. This increase is anticipated due to government incentives like RECs (Renewable Energy Certificates) and feed-in tariff, to ...
Jadeja, Kalpendrasinh
core  

Self-Commissioning of Inverter Nonlinear Effects in AC Drives [PDF]

open access: yes, 2012
The paper presents a novel technique for an accurate identification of the inverter nonlinear effects, such as the dead-time and on-state voltage drops. The proposed technique is very simple and it is based only on a current control scheme.
Rosu, S.G.   +10 more
core   +1 more source

A Universal van der Waals Tunneling Injector for Monolayer CMOS

open access: yesAdvanced Materials, EarlyView.
A universal van der Waals injector unlocks polarity‐flexible tunneling contacts for monolayer CMOS. SnSe2, an intrinsically degenerate 2D semiconductor, establishes polarity‐specific band alignments with both WSe2 and MoS2 channels, enabling steep switching, high on/off ratios, and a unified route to low‐power 2D logic.
Hanbin Cho   +17 more
wiley   +1 more source

Design of a robust digital current controller for a grid connected interleaved inverter

open access: yes
This paper is concerned with the design and practical implementation of a robust digital current controller for a threephase voltage source grid-connected interleaved inverter.
Sharkh, S. M., Abu-sara, M. A.
core   +1 more source

Grid‐forming inverter control design for PV sources considering DC‐link dynamics

open access: yesIET Renewable Power Generation
A grid‐forming inverter in an inverter‐dominated grid should operate as a dispatchable voltage source, which is difficult to achieve when the inverter is interfaced with nonlinear dc sources such as photovoltaic (PV) arrays.
Ishita Ray, Leon M. Tolbert
doaj   +1 more source

Disturbance Rejection Control of Grid-Forming Inverter for Line Impedance Parameter Perturbation in Weak Power Grid

open access: yes
When a grid-forming (GFM) inverter is connected to a low- or medium-voltage weak power grid, the line impedance with resistive and inductive characteristics will cause power coupling.
Li, H, Hui Li, Huang, M, Mayue Huang
core   +1 more source

Defect‐Templated Phase Engineering in Atomically Thin Metals

open access: yesAdvanced Materials, EarlyView.
Graphene defects are transformed from passive imperfections into programmable templates for phase‐selective growth of atomically thin silver. Plasma‐generated boundary defects favor Ag(1), whereas sp3‐rich zero‐layer graphene promotes Ag(2). This defect‐directed intercalation links local graphene chemistry to crystalline phase, electronic structure ...
Arpit Jain   +25 more
wiley   +1 more source

A simple estimation method of grid‐forming inverter inertia based on rate of change of frequency

open access: yesIET Power Electronics
Inertia is the core index of the estimation of power system frequency stability; a simple estimation method of grid‐forming inverter inertia based on the rate of change of frequency (RoCoF) is proposed in this paper.
Gang Han   +7 more
doaj   +1 more source

A review of intelligent predictive control in grid-forming and grid-following inverters for enhanced smart grids

open access: yesEnergy Nexus
The transition to renewable generation is replacing synchronous generators with inverter-based resources. This lowers system inertia and shifts the task of maintaining grid stability from rotating mass onto the control of the inverters themselves.
Maipelo Pheto   +4 more
doaj   +1 more source

Control of a Grid-Forming Inverter Based on Sliding-Mode and Mixed H-2/H-infinity Control

open access: yes, 2017
A grid-forming inverter (GFI) is an important component for operation of an islanded microgrid. Its purpose, similar to a conventional slack bus generator, is to build up a reference voltage for other distributed generating units in the microgrid ...
Bian J(卞晶)   +5 more
core  

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