Results 41 to 50 of about 8,561 (290)

Virtual Synchronous Generator Using an Intelligent Controller for Virtual Inertia Estimation [PDF]

open access: yesElectronics, 2021
Virtual synchronous generators (VSGs) with inertia characteristics are generally adopted for the control of distributed generators (DGs) in order to mimic a synchronous generator. However, since the amount of virtual inertia in VSG control is usually constant and given by trial and error, the real power and frequency oscillations of a battery energy ...
Kuang-Hsiung Tan   +4 more
openaire   +1 more source

Adaptive Virtual Inertia-Damping System Based on Model Predictive Control for Low-Inertia Microgrids [PDF]

open access: yesIEEE Access, 2021
En este trabajo, se propone un sistema de amortiguación de inercia virtual adaptativo basado en el control predictivo de modelos (MPC) para mejorar el rendimiento dinámico de frecuencia de las microrredes aisladas (MG) considerando un alto nivel de penetración de fuentes de energía renovables (RES).
Asmaa Fawzy   +4 more
openaire   +2 more sources

Stability Improvement of Renewable Energy Resource Based Microgrid via Virtual Inertia Control

open access: yes, 2023
In an isolated microgrid, in the absence of a rotating synchronous machine, a virtual synchronous generator behaves as a rotating synchronous machine within a converter-based system and mitigates instability issues.
Lu, J, Shobug, MA, Yang, F
core   +1 more source

An Adaptive Inertia and Damping Control Strategy Based on Enhanced Virtual Synchronous Generator Model

open access: yes, 2023
In modern converter-dominated power systems, total inertia is very variable and depends on the share of power generated by renewable-based converter-interfaced generation (CIG) at each specific moment.
Andrey Achitaev   +6 more
core   +1 more source

An adaptative control strategy for interfacing converter of hybrid microgrid based on improved virtual synchronous generator

open access: yesIET Renewable Power Generation, 2022
Inertial support for hybrid AC/DC microgrid systems is provided by the virtual synchronous generator (VSG). However, the fast performance of the system is neglected while enhancing the stability of the system. To address this problem, an adaptive virtual
Liang Zhang   +5 more
doaj   +1 more source

Virtual Inertia Adaptive Control Strategy of ESU in DC Microgrid

open access: yes, 2022
With the increasingly obvious DC characteristics at both ends of the source and load sides of the low-voltage distribution network, the application scenarios of low-voltage DC microgrid gradually appear.
Hongshan Li   +5 more
core   +1 more source

Adaptive Virtual Synchronous Generator Based on Model Predictive Control with Improved Frequency Stability

open access: yesEnergies, 2022
With the massive integration of renewable energy into the grid, grid inertia and its stability continue to decrease. To improve inertia and facilitate grid restoration, a control strategy for radial basis function virtual synchronous generators based on ...
Xuhong Yang   +5 more
doaj   +1 more source

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

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

Dynamic Virtual Inertia and Damping Control for Zero-Inertia Grids

open access: yesCoRR
In this paper virtual synchronous generation (VSG) approach is investigated in application to low- and zero-inertia grids operated by grid-forming (GFM) inverters. The key idea here is to introduce dynamic inertia and damping constants in order to keep power gird stable during different types of faults, islanding or large power balance oscillations. In
Oleg O. Khamisov, Stepan P. Vasilev
openaire   +2 more sources

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