Results 21 to 30 of about 541,291 (327)

Evaluation of Lightning Impulse Test by Frequency Response Analysis [PDF]

open access: yes, 2006
In this work are presented the basis for improving the interpretation of transformer lightning impulse test and the development of a graphical user interface system, which allows comparisons of time domain data and frequency response.
Ramírez, Jorge, Valecillos, Baudilio
core   +3 more sources

Fast Positioning of Marginal Hosting Capacity and Optimal Selection of Accommodation Scheme for Distributed PVs

open access: yesZhongguo dianli, 2022
With rapid development of distributed photovoltaic(PV), it is becoming of great importance to evaluate PVs’ hosting capacity for the planning and operation of distribution power system.
Can CHEN   +7 more
doaj   +1 more source

Reactive Power Management of PV Systems by Distributed Cooperative Control in Low Voltage Distribution Networks [PDF]

open access: yesAUT Journal of Electrical Engineering, 2023
A distributed control strategy is proposed to enhance voltage regulation and reactive power sharing in Low Voltage (LV) distribution networks with high penetration of Photovoltaic (PV) systems.
Saeed Mahdavian Rostami, Mohsen Hamzeh
doaj   +1 more source

Voltage Profile Enhancement and Loss Minimization Using Optimal Placement and Sizing of Distributed Generation in Reconfigured Network

open access: yesMachines, 2021
Power loss and voltage instability are major problems in distribution systems. However, these problems are typically mitigated by efficient network reconfiguration, including the integration of distributed generation (DG) units in the distribution ...
Waseem Haider   +5 more
doaj   +1 more source

Study on Influence of Voltage Deviation on Loss of Low Voltage Distribution Network

open access: yesIOP Conference Series: Earth and Environmental Science, 2020
Abstract Voltage deviation is one of the important power quality problems. Studying its impact on the power loss of low voltage distribution network is of great significance for the development of loss reduction measures and the realization of economic operation of power grid.
Zuquan Liang   +4 more
openaire   +1 more source

A Modified Bird-Mating Optimization with Hill-Climbing for Connection Decisions of Transformers

open access: yesEnergies, 2016
This paper endeavors to apply a hybrid bird-mating optimization approach to connection decisions of distribution transformers. It is expected that with the aid of hybrid bird-mating approach, the voltage imbalance and deviation can be mitigated, hence ...
Ting-Chia Ou   +4 more
doaj   +1 more source

Low temperature tunneling current enhancement in silicide/Si Schottky contacts with nanoscale barrier width [PDF]

open access: yes, 2011
The low temperature electrical behavior of adjacent silicide/Si Schottky contacts with or without dopant segregation is investigated. The electrical characteristics are very well modeled by thermionic-field emission for non-segregated contacts separated ...
Afzalian A.   +8 more
core   +3 more sources

New Insight into the Fluctuations of the Moving Vortex Lattice: Non-Gaussian Noise and Levy Flights [PDF]

open access: yes, 2006
We report measurements and analysis of the voltage noise due the to vortex motion, performed in superconducting Niobium micro-bridges. Noise in such small systems exhibits important changes from the behavior commonly reported in macroscopic samples.
Domenges, B.   +5 more
core   +2 more sources

Reactive Power Dispatch Optimization with Voltage Profile Improvement Using an Efficient Hybrid Algorithm †

open access: yesEnergies, 2018
This paper presents an efficient approach for solving the optimal reactive power dispatch problem. It is a non-linear constrained optimization problem where two distinct objective functions are considered.
Zahir Sahli   +3 more
doaj   +1 more source

Impact Assessment of Grid-Connected Solar Photovoltaic Systems on Power Distribution Grid: A Case Study on a Highly Loaded Feeder in Ulaanbaatar Ger District

open access: yesEnergies
Adopting and widely implementing solar photovoltaic (PV) systems are regarded as a promising solution to address energy crises by providing a sustainable and independent electricity supply while significantly reducing greenhouse gas emissions to combat ...
Turmandakh Bat-Orgil   +3 more
doaj   +1 more source

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