Results 41 to 50 of about 98,212 (294)

Stability and Frequency Regulation of Inverters with Capacitive Inertia [PDF]

open access: yes, 2017
In this paper, we address the problem of stability and frequency regulation of a recently proposed inverter. In this type of inverter, the DC-side capacitor emulates the inertia of a synchronous generator.
De Persis, Claudio   +4 more
core   +3 more sources

Health disparities in chronic liver disease

open access: yesHepatology, EarlyView., 2022
Abstract The syndemic of hazardous alcohol consumption, opioid use, and obesity has led to important changes in liver disease epidemiology that have exacerbated health disparities. Health disparities occur when plausibly avoidable health differences are experienced by socially disadvantaged populations.
Ani Kardashian   +3 more
wiley   +1 more source

A Virtual Inertia Control Strategy for DC Microgrids Analogized With Virtual Synchronous Machines [PDF]

open access: yesIEEE Transactions on Industrial Electronics, 2017
In a DC microgrid (DC-MG), the dc bus voltage is vulnerable to power fluctuation derived from the intermittent distributed energy or local loads variation. In this paper, a virtual inertia control strategy for DC-MG through bidirectional grid-connected converters (BGCs) analogized with virtual synchronous machine (VSM) is proposed to enhance the ...
Wu, Wenhua   +7 more
openaire   +1 more source

Comparison of Different Virtual Inertia Control Methods for Inverter-based Generators

open access: yesJournal of Modern Power Systems and Clean Energy, 2020
With the rapid development of inverter-based generators (IGs), power grid is faced with critical frequency stability challenges because the existing IGs have no inertia.
Dawei Sun   +5 more
doaj   +1 more source

Mountain gazelle optimisation‐based 3DOF‐FOPID‐virtual inertia controller for frequency control of low inertia microgrid

open access: yesIET Energy Systems Integration, 2023
Abstract The primary objective of the authors is to design a new robust and improved virtual inertia controller (VIC) for renewable energy dominated inverter interfaced low inertia microgrid (LIMG). Increasing penetration of inertia‐less renewable generation in microgrid leads to increased frequency deviation during and after a ...
Swapan Santra, Mala De
openaire   +2 more sources

Evaluating rules of interaction for object manipulation in cluttered virtual environments [PDF]

open access: yes, 2002
A set of rules is presented for the design of interfaces that allow virtual objects to be manipulated in 3D virtual environments (VEs). The rules differ from other interaction techniques because they focus on the problems of manipulating objects in ...
Jones, D.M.   +2 more
core   +2 more sources

Optimal Model Predictive Control for Virtual Inertia Control of Autonomous Microgrids

open access: yesSustainability, 2023
For the time being, renewable energy source (RES) penetration has significantly increased in power networks, particularly in microgrids. The overall system inertia is dramatically decreased by replacing traditional synchronous machines with RES. This negatively affects the microgrid dynamics under uncertainties, lowering the microgrid frequency ...
Amr Saleh   +6 more
openaire   +3 more sources

Comprehensive Coordinated Control Strategy of PMSG-Based Wind Turbine for Providing Frequency Regulation Services

open access: yesIEEE Access, 2019
A high proportion of wind energy in modern power system requires wind turbines (WTs) to provide frequency regulation services. In this context, this paper proposes a comprehensive coordinated control strategy of permanent magnet synchronous generator ...
Xueyang Zeng   +4 more
doaj   +1 more source

Torque vectoring based drive assistance system for turning an electric narrow tilting vehicle [PDF]

open access: yes, 2019
The increasing number of cars leads to traffic congestion and limits parking issue in urban area. The narrow tilting vehicles therefore can potentially become the next generation of city cars due to its narrow width.
Greenwood, David G.   +3 more
core   +2 more sources

A Virtual Inertia Method for Stability Control of DC Distribution Systems with Parallel Converters

open access: yesEnergies, 2022
DC distribution systems are a typical power electronic system with low inertia, low-rotational kinetic energy, and poor antidisturbance capability when loads fluctuate or parameters change.
Qun Gao, Yan Jiang, Ke Peng, Lei Liu
doaj   +1 more source

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