Results 21 to 30 of about 9,954 (268)

Applications of synchrophasor measurement to improve the reliability and efficiency of power systems [PDF]

E3S Web of Conferences, 2020
The article deals with the development of software and hardware systems that expand the scope of application of the synchrophasor measurement (SPM) technology.
Popov Alexandr I., Mokeev Alexey V., Piskunov Sergey A., Rodionov Andrey V.   +3 more
doaj   +1 more source

Investigation on stacked cascade multilevel inverter by employing single-phase transformers

Engineering Science and Technology, an International Journal, 2016
In the present paper a new version of multilevel inverter is investigated. This new version is based on hybrid association of commutation cells with H-bridge cells. The association allows a significant reduction of the volume of the capacitors.
Y. Suresh, Anup Kumar Panda
doaj   +1 more source

Balancing of Low-Voltage Supply Network with a Smart Utility Controller Leveraging Distributed Customer Energy Sources

Energies, 2023
In South Africa, there has been a rapid adoption of solar power, particularly inverter-based solar sources, in low-voltage (LV) networks due to factors such as load shedding, rising electricity costs and greenhouse gas emissions reduction. In residential
Dumisani Mtolo, David Dorrell, Rudiren Pillay Carpanen   +2 more
doaj   +1 more source

Simulation modeling balancing current in the traction network of a substation group [PDF]

E3S Web of Conferences, 2020
This article is devoted to assessing the transit of electricity from an external electrical power supply system through the traction network of a railway district that includes nine traction substations.
Li Valerij, Konstantinova Yuliya
doaj   +1 more source

ASPECTS REGARDING THE OPERATING REGIME IN CHARGE OF SINGLE PHASE ELECTRICAL TRANSFORMERS [PDF]

Analele Universităţii "Constantin Brâncuşi" din Târgu Jiu: Seria Inginerie, 2019
The paper presents a case study on the operating regime in charge of single-phase transformers. The case study relates to a functional model that has in its configuration a single-phase electric transformer with an apparent power of 250 VA and a ...
Cristinel Popescu
doaj  

Design and Optimization of Three-Phase Dual-Active-Bridge Converters for Electric Vehicle Charging Stations

Energies, 2019
In this paper, design and optimization method of a three-phase dual-active-bridge DC/DC converter is discussed. Three single phase transformers connected in star-star configuration were designed with large leakage inductance aiming to eliminate the need ...
Duy-Dinh Nguyen, Ngoc-Tam Bui, Kazuto Yukita   +2 more
doaj   +1 more source

System Unbalance Analyses and Improvement for Rooftop Photovoltaic Generation Systems in Distribution Networks

Energies, 2020
This paper studies the system unbalance caused by rooftop Photovoltaic Generation Systems (PVGSs) in distribution networks and proposes an improved method.
Rong-Ceng Leou, Jen-Hao Teng, Yun-Fang Li, Wei-Min Lin, Yu-Hung Lin   +4 more
doaj   +1 more source

Optimal parameter extraction of equivalent circuits for single- and three- phase Power transformers based on arctic puffin algorithm accomplished with experimental verification

Results in Engineering
The power transformer is a critical device in power systems. This paper addresses one of the major problems which hopes to enhance the accuracy of estimation of parameters, which is critical in power transformer modeling, maintenance, and operating ...
Amlak Abaza, Ragab A. El-Sehiemy, Mohamed Assaad Hamida, Raphael Chenouard, Ahmed Bayomyi   +4 more
doaj   +1 more source

Parent Quality of Life at Two Years Following Their Child's Completion of Acute Lymphoblastic Leukemia Treatment

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Parents of children treated for acute lymphoblastic leukemia (ALL) often experience significant caregiver burden and disruption to their well‐being. While parent quality of life (QoL) during treatment is well characterized, little is known about outcomes during early survivorship.
Sara Dal Pra, Maria McCarthy, Michael Takagi, Cinzia De Luca   +3 more
wiley   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source