Results 21 to 30 of about 1,361,325 (295)

Threshold voltage instability in SiC power MOSFETs

open access: yes, 2019
Charge trapping and de-trapping phenomena in SiC power MOSFETs were investigated by performing two different types of electrical characterization: hysteresis and positive bias temperature instability (PBTI) measurements. A positive stress voltage to the gate results in positive threshold voltage shift (ΔVT), which can be fully recovered by applying a ...
Giuseppe Consentino   +5 more
openaire   +4 more sources

AUTOMATIC ADJUSTMENT OF REACTIVE POWER BY FACTS DEVICES UNDER CONDITIONS OF VOLTAGE INSTABILITY IN THE ELECTRIC NETWORK

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2023
This article describes the problem of automatic regulation of reactive power using electronic devices FACTS (Flexible AC Transmission Systems): static synchronous compensator (STATCOM) and unified power flow controller (UPFC). With the help of a complex
Mykhailo Burbelo   +6 more
doaj   +1 more source

Dynamic Stability Improvement of Decentralized Wind Farms by Effective Distribution Static Compensator

open access: yesJournal of Modern Power Systems and Clean Energy, 2021
Dynamic instability of decentralized wind energy farms is a major issue to deliver continuous green energy to electricity consumers. This instability is caused by variations of voltage and frequency parameters due to intermittencies in wind power ...
Muhammad Naveed Naz   +5 more
doaj   +1 more source

Optimal instantaneous prediction of voltage instability due to transient faults in power networks taking into account the dynamic effect of generators

open access: yesCogent Engineering, 2022
Changes in consumption and changes in the structure of the system always occur in each power system. One of the effects of these changes can be the instability of the system voltage.
Mohsen Khalili   +5 more
doaj   +1 more source

Voltage Instability Analysis For Electrical Power System Using Voltage Stability Index [PDF]

open access: yes, 2022
The rise of voltage instability phenomena from the past few decades until now is worrying. The increases of power demand and limited power sources make the system to operate at its maximum limit of capacity.
Amar Hakimi, Bahar
core   +2 more sources

Voltage Instability Analysis Based On Adaptive Neuro-Fuzzy Inference System And Probabilistic Neural Network [PDF]

open access: yes, 2018
This paper presents the application of Adaptive Neuro-Fuzzy Inference System (ANFIS) and Probabilistic Neural Network (PNN) for voltage instability analysis in electric power system.
Omar, Rosli   +3 more
core   +3 more sources

Data‐model driven rescheduling considering both rotor angle stability and transient voltage stability constraints

open access: yesIET Renewable Power Generation, 2022
Facing the problem of workforce and time costs caused by the rescheduling of large‐scale power grids with renewable energy penetration, and the lack of parallel control research on rotor angle instability and transient voltage instability, a rescheduling
Tianjing Wang, Yong Tang
doaj   +1 more source

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

Energy Non-Availability in Distribution Grids with Heavy Penetration of Solar Power: Assessment and Mitigation through Solar Smoother

open access: yesEnergies, 2018
Rapid fluctuation of solar irradiance due to cloud passage causes corresponding variations in the power output of solar PV power plants. This leads to rapid voltage instability at the point of common coupling (PCC) of the connected grid which may cause ...
Tathagata Sarkar   +4 more
doaj   +1 more source

Anticipating and Coordinating Voltage Control for Interconnected Power Systems [PDF]

open access: yes, 2014
This paper deals with the application of an anticipating and coordinating feedback control scheme in order to mitigate the long-term voltage instability of multi-area power systems. Each local area is uniquely controlled by a control agent (CA) selecting
Boel, René   +5 more
core   +1 more source

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