Results 1 to 10 of about 1,054,199 (245)

Comparison of DSOGI-Based PLL for Phase Estimation in Three-Phase Weak Grids

open access: yesElectricity, 2021
The paper presents a summary of different double second-order generalized integrator (DSOGI)-based phase-locked loop (PLL) algorithms for synchronization with three-phase weak grids.
Jorge Pinto   +3 more
doaj   +3 more sources

On Stability of Voltage Source Inverters in Weak Grids

open access: yesIEEE Access, 2018
As the number of inverters increases in the power grid, the stability of grid-tied inverters becomes an important concern for the power industry. In particular, a weak grid can lead to voltage fluctuations at the inverter terminals and consequently cause
Aswad Adib   +3 more
doaj   +3 more sources

Influence of Active Power Output and Control Parameters of Full-Converter Wind Farms on Sub-Synchronous Oscillation Characteristics in Weak Grids

open access: yesEnergies, 2020
Active power outputs of a wind farm connected to a weak power grid greatly affect the stability of grid-connected voltage source converter (VSC) systems.
Yafeng Hao   +5 more
doaj   +3 more sources

Modelling and Stability Analysis of Wind Power Plants Connected to Weak Grids

open access: yesApplied Sciences, 2019
It is important to develop modelling tools to predict unstable situations resulting from the interactions between the wind power plant and the weak power system.
Esmaeil Ebrahimzadeh   +4 more
doaj   +3 more sources

Grid-Connected Converters: A Brief Survey of Topologies, Output Filters, Current Control, and Weak Grids Operation

open access: yesEnergies, 2023
Grid-connected converters (GCCs) are used extensively for the integration of DC power sources with AC power sources. However, since it is a complex topic, there are many possibilities for regulating grid-injected currents, as well as different modulation
Guilherme V. Hollweg   +5 more
doaj   +3 more sources

Inertia Emulation Through Supercapacitor for a Weak Grid [PDF]

open access: yesIEEE Access, 2021
Renewable energy sources (RES) have been widely incorporated into the power generation to offset fossil fuels in order to minimize carbon emissions. Typically, RES based power generation integrated into the power grid through the power electronic converters.
Ratnam Kamala Sarojini   +1 more
openaire   +2 more sources

Tuning Method of a Grid-Following Converter for the Extremely-Weak-Grid Connection [PDF]

open access: yesIEEE Transactions on Power Systems, 2022
This paper proves that a grid-following converter can stably connect to a weak grid even short-circuit ratio (SCR) is 1. Root instability causes of this grid-following control are identified including fast control response, insufficient damping, and slow voltage support.
Chuanyue Li, Sheng Wang, Jun Liang
openaire   +1 more source

Comparative Performance of DFIG and PMSG Wind Turbines during Transient State in Weak and Strong Grid Conditions Considering Series Dynamic Braking Resistor

open access: yesEnergies, 2022
The recently stipulated grid codes require wind generators to re-initiate normal power production after grid voltage sag. This paper presents a comparative performance of two commonly employed variable speed wind turbines in today’s electricity market ...
Kenneth E. Okedu, S. M. Muyeen
doaj   +1 more source

Magnetically controlled reactors design for weak grids

open access: yesAin Shams Engineering Journal, 2021
Power system (PS) requires new flexible AC transmission systems, new solutions for voltage instability problems with simple design and fast response and its equipment, should allow reactive control, short-circuit capacity, dynamic behavior, flexibility ...
Ricardo Manuel Arias Velásquez   +1 more
doaj   +1 more source

A Robust Method for Controlling Grid-Connected Inverters in Weak Grids

open access: yesIEEE Transactions on Circuits and Systems II: Express Briefs, 2021
Stable operation of grid-connected converters with the LCL filter is essential. Variations of the grid impedance and consequently, variations of the resonance frequency, can push the system toward instability. Also, delay that comes from sampling and PWM, could worsen the stability condition.
Ali Akhavan   +2 more
openaire   +3 more sources

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