Results 31 to 40 of about 1,560,331 (368)

Test and study on sensitivity of electronic circuit in low‐voltage release to voltage sags

open access: yesIET Circuits, Devices and Systems, 2017
This study focuses on sensitivity of electronic circuit in low‐voltage release to voltage sags based on a large‐scale test results. Although studies about ride‐through capability of some electronic devices during voltage sags have been carried out, there
Sen Ouyang, Liyuan Liu
doaj   +1 more source

More stability and robustness with the multi-loop control solution for dynamic voltage restorer (DVR) [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2009
This paper presents the application of dynamic voltage restorers (DVR) on power distribution systems for mitigation of voltage sags/swells at critical loads. DVR is one of the compensating types of custom power devices.
Abdelkhalek Othmane   +4 more
doaj   +1 more source

New factor for voltage sags characterization

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2012
A new factor which allows characterizing voltage sags in an individual way is presented in this paper. The factor acts revises and identifies voltage sags in a univocal way.
Edwin García Quintero   +2 more
doaj   +1 more source

Power control strategies during voltage sags according to Spanish grid code [PDF]

open access: yes, 2018
In order to connect any power converters into the grid there are some grid requirements to insure the safe operation of the grid. So, the control of the converters especially during abnormal condition e.g. during voltage sags is
Bakkar, Mostafa   +4 more
core   +1 more source

Control Strategy for Grid-Connected Three-Phase Inverters During Voltage Sags to Meet Grid Codes and to Maximize Power Delivery Capability

open access: yesIEEE transactions on power electronics, 2018
Inverter-based distributed generation plays a vital role in the stability and reliability of new power systems. Under voltage sags, these systems must remain connected to the electrical network according to the stringent requirements of grid codes (GCs).
Miguel Andrés Garnica López   +4 more
semanticscholar   +1 more source

Dual 3-Phase Bridge Multilevel Inverters for AC Drives with Voltage Sag Ride-through Capability

open access: yesEnergies, 2019
One of the main power quality issues that can affect variable speed drives (VSDs) is the occurrence of voltage sags on their AC power supply. Voltage sags can affect the inverter nominal operation, leading to a malfunction of the AC motor.
Vitor Fernão Pires   +2 more
doaj   +1 more source

Wind Energy Conversion System Based on DFIG with Three-Phase Series Grid Side Converter and Single DC-Link

open access: yesEletrônica de Potência, 2021
In this paper, a wind energy conversion system based on doubly-fed induction generator with an additional series grid side converter without transformer is proposed.
Ítalo A. Cavalcanti de Oliveira   +2 more
doaj   +1 more source

A Decision Tree and S-Transform Based Approach for Power Quality Disturbances Classification [PDF]

open access: yes, 2013
In this paper, it is presented an automated classification based on S-transform as feature extraction tool and Decision Tree as algorithm classifier. The signals generated according to mathematical models, including complex disturbances, have been used ...
Aguado-Sanchez, Jose Antonio   +5 more
core   +1 more source

Flexible Control of Photovoltaic Grid-Connected Cascaded H-Bridge Converters During Unbalanced Voltage Sags

open access: yesIEEE transactions on industrial electronics (1982. Print), 2018
Multilevel cascade H-bridge (CHB) converters are one of the promising solutions for medium- and large-scale grid-connected photovoltaic power plants. However, there is a lack of a complete study about their operation during voltage sags.
H. D. Tafti   +5 more
semanticscholar   +1 more source

Fast Transient Hybrid Neuro Fuzzy Controller for STATCOM During Unbalanced Voltage Sags [PDF]

open access: yesAUT Journal of Electrical Engineering, 2018
A static synchronous compensator (STATCOM) is generally used to regulate voltage and improve transient stability in transmission and distribution networks. This is achieved by controlling reactive power exchange between STATCOM and the grid.
R. Zaheri Abdevand   +3 more
doaj   +1 more source

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