Results 1 to 10 of about 4,753,889 (212)

Optimal Voltage Control Method for a Step Voltage Regulator Considering the Under-Load Tap Changer in a Distribution System Interconnected with a Renewable Energy Source

open access: yesEnergies, 2023
The voltage in distribution systems is controlled by the under-load tap changer of the substation and the pole transformer of the primary feeders. Recently, as one of the main countermeasures, a step voltage regulator is being introduced to solve voltage
Hyun-ok Lee   +3 more
doaj   +2 more sources

A Fully Distributed Voltage Optimization Method for Distribution Networks Considering Integer Constraints of Step Voltage Regulators

open access: yesIEEE Access, 2019
With the increasing penetration of distributed photovoltaics (PVs), the operation and control of distribution networks (DNs), especially voltage control, have become more complicated.
Yixin Liu   +5 more
doaj   +2 more sources

Step-Up DC–DC Converters: A Comprehensive Review of Voltage-Boosting Techniques, Topologies, and Applications

open access: yesIEEE Transactions on Power Electronics, 2017
Frede Blaabjerg   +2 more
exaly   +2 more sources

The Impact of Substation Grounding Grid Design Parameters in Non-Homogenous Soil to the Grid Safety Threshold Parameters

open access: yesIEEE Access, 2021
It is important to ensure that a grounding system is designed with a low magnitude of earth resistance, so the protection system can divert the large fault current to earth effectively.
Navinesshani Permal   +3 more
doaj   +1 more source

Research on lightning transient distribution characteristics of cable-stayed bridges

open access: yes暴雨灾害, 2023
Bridges are usually located at the junction of land and water, where the surrounding area is open terrain, making them to be easily damaged by lightning strikes.
Yajing SHI   +4 more
doaj   +1 more source

Design, Modeling, and Analysis of IEEE Std 80 Earth Grid Design Refinement Methods Using ETAP

open access: yesApplied Sciences, 2023
The design of a compliant, safe, and reliable substation earth grid is not a straightforward process; in most cases, it requires some additional measures to be taken due to various constraints that differ from environment to environment, such as soil ...
Vuyani Michael Nicholas Dladla   +2 more
doaj   +1 more source

Control Method of Step Voltage Regulator on Distribution Lines with Distributed Generation

open access: yesEnergies, 2022
Generally, utilities regulate the voltage on the long power distribution line within a permissible range by using a step voltage regulator (SVR), which is located around the middle of the line and operates according to the condition of the line current ...
Jong-Bin Kim   +6 more
semanticscholar   +1 more source

Power Leakage Monitoring and Warning Device for Power Grid Fault Diagnosis: Design and Field Test

open access: yesFrontiers in Energy Research, 2022
Electrical equipment insulation damage, metal shell conduction on rainy days, and wire short circuits are easy to produce leakage, which form step voltage on the ground and endangers the life and safety of nearby personnel.
Qi Yang   +3 more
doaj   +1 more source

A Comprehensive Three-Phase Step Voltage Regulator Model with Efficient Implementation in the Z-Bus Power Flow

open access: yes, 2021
This paper presents a comprehensive three-bus equivalent circuit model of three-phase step voltage regulators. The proposed model can be efficiently integrated in the Z-bus power flow method and can accurately simulate any configuration of step voltage ...
E. Pompodakis   +2 more
semanticscholar   +1 more source

Effect of Soil Resistivity Measurement on the Safe Design of Grounding Systems

open access: yesEnergies, 2020
A prerequisite for the proper and safe designing of a grounding system is the full knowledge of the ground structure in the terrain of installation.
Vasilios P. Androvitsaneas   +3 more
doaj   +1 more source

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