Results 51 to 60 of about 80,798 (260)

GECM-Based Voltage Stability Assessment Using Wide-Area Synchrophasors

open access: yesEnergies, 2017
Voltage instability is a crucial issue in the secure operation of power grids. Several methods for voltage stability assessment were presented. Some of them are highly computationally intensive, while others are reported not to work properly under all ...
Heng-Yi Su, Tzu-Yi Liu
doaj   +1 more source

Coordinated Control of Wind Energy Conversion System during Unsymmetrical Fault at Grid

open access: yesEnergies, 2022
High penetration of wind power into the grid necessitates the coordinated action of wind energy conversion systems and the grid. A suitable generation control is required to fulfill the grid integration requirements, especially during faults.
Hemant Ahuja   +4 more
doaj   +1 more source

Grid Frequency and Amplitude Control Using DFIG Wind Turbines in a Smart Grid

open access: yesMathematics, 2021
Wind-generated energy is a fast-growing source of renewable energy use across the world. A dual-feed induction machine (DFIM) employed in wind generators provides active and reactive, dynamic and static energy support. In this document, the droop control
José Antonio Cortajarena   +3 more
doaj   +1 more source

A Practical Model and an Optimal Controller for Variable Speed Wind Turbine Permanent Magnet Synchronous Generator [PDF]

open access: yes, 2017
The aim of this paper is the complete modeling and simulation of an optimal control system using practical setup parameters for a wind energy conversion system (WECS) through a direct driven permanent magnet synchronous generator (D-PMSG) feeding ac ...
Cossar, Calum   +2 more
core   +1 more source

Variable parameter practical model of synchronous generator for precise simulation of power system

open access: yesIET Generation, Transmission & Distribution, 2022
The model of synchronous generator (SG) plays an important role in the simulation of power system and planning of power grid. With the constant parameter practical model (CPPM), it is difficult to consider the time‐varying characteristic of the ...
Guorui Xu   +4 more
doaj   +1 more source

Analysis of Voltage and Reactive Power Algorithms in Low Voltage Networks

open access: yesEnergies, 2022
The rapid development of renewable energy sources and electricity storage technologies is further driving the change and evolution of traditional energy systems. The aim is to interconnect the different electricity systems between and within countries to
Daiva Stanelytė, Virginijus Radziukynas
doaj   +1 more source

Inexact Convex Relaxations for AC Optimal Power Flow: Towards AC Feasibility

open access: yes, 2020
Convex relaxations of AC optimal power flow (AC-OPF) problems have attracted significant interest as in several instances they provably yield the global optimum to the original non-convex problem.
Chatzivasileiadis, Spyros   +2 more
core   +1 more source

PI-based controller for low-power distributed inverters to maximise reactive current injection while avoiding over voltage during voltage sags [PDF]

open access: yes, 2018
This paper is a postprint of a paper submitted to and accepted for publication in IET Power Electronics and is subject to Institution of Engineering and Technology Copyright.
Camacho Santiago, Antonio   +4 more
core   +2 more sources

Low-Voltage Ride-Through Control Strategy for a Virtual Synchronous Generator Based on Smooth Switching

open access: yesIEEE Access, 2018
The grid-connected inverter with virtual synchronous generator (VSG) control technology can improve the friendliness of a distributed power supply to the power grid. However, its low-voltage ridethrough (LVRT) capability is insufficient, which results in
Kai Shi   +5 more
doaj   +1 more source

Power Quality Enhancement in Electricity Grids with Wind Energy Using Multicell Converters and Energy Storage [PDF]

open access: yes, 2019
In recent years, the wind power industry is experiencing a rapid growth and more wind farms with larger size wind turbines are being connected to the power system.
Allali, Ahmed   +5 more
core   +2 more sources

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