Results 71 to 80 of about 1,644 (207)

A new method for axis adjustment of the hydro-generator unit using machine learning

open access: yesScientific Reports, 2023
The power quality and efficiency of the hydro-power station depend on the stable operation of the hydro-generator unit, which needs to continue to operate and it is prone to axis failure.
Jie Cao   +5 more
doaj   +1 more source

A Passive Islanding Method to Improve the Stability of Power Supply to Critical Loads in a Real Distribution Network

open access: yesInternational Transactions on Electrical Energy Systems, Volume 2025, Issue 1, 2025.
This study proposed a modified passive islanding technique that combines over/under frequency (OUF), rate of change of frequency (ROCOF), rate of change of phase angle difference (ROCPAD), and rate of change of voltage (ROCOV) for sensing of islanding and nonislanding conditions.
Bemdoo Saka   +4 more
wiley   +1 more source

Operating Characteristics of a Timber Trailer with a Hybrid Drive [PDF]

open access: yes, 2022
This paper deals with the design and operational evaluation of a timber tractor-trailer unit with a hybrid trailer drive. The source of electrical energy for the two induction motors driving the front wheels of the tandem trailer axle is a battery, which
Mergl, Václav   +7 more
core   +2 more sources

A Novel Cooling Technique to Improve the Thermal Characteristics of a Permanent Magnet Generator Using an Earth–Air Heat Exchanger

open access: yesJournal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.
In the current study, a novel cooling technique has been developed to enhance the thermal characteristics of a permanent magnet generator (PMG) by integrating with an earth–air heat exchanger (EAHE). The paper introduces a comprehensive thermal model of PMG, calculating thermal resistances based on the dimensions of a chosen 500‐kW PMG as a case study.
Amany R. Nasr   +3 more
wiley   +1 more source

Avaliação das propriedades elétricas de barras estatóricas fabricadas com resina do tipo éter diglicidílico do bisfenol F (DGEBF) contendo nanopartículas de silica

open access: yesPolímeros
Resumo O presente trabalho visa apresentar resultados da aplicação de uma resina epóxi bisfenólica (DGEBF) à base de nanopartículas de sílica (RN) e comparar suas propriedades com a resina convencional de referência epóxi bisfenólica (DGEBA) (RE ...
Rafael Novaes da Conceição   +1 more
doaj   +1 more source

Modelling of firm offer from combined wind and hydro generations [PDF]

open access: yes, 2019
This paper analyses the impact of a firm combined offer by wind and small hydro generators located in the river chain, with a view to address the intermittency of wind generators.
Chakrabarti, Bhujanga
core  

Priority Events Determination For The Risk-oriented Management Of Electric Power System [PDF]

open access: yes, 2018
The task of risk-oriented management of the electric power system in conditions of multi-criteria choice is considered. To determine the most effective measures, the implementation of which will reduce the magnitude of the risk of an emergency situation,
Kosterev, M. (Mykola)   +1 more
core  

Object oriented modelling and simulation of hydropower plants with run-of-river scheme: A new simulation tool [PDF]

open access: yes, 2009
This paper presents the design of a component library for modelling hydropower plants, and describes the development of a new simulation tool for small hydropower plants with a run-of-river scheme. After reviewing the desirable features of simulation, an
Garrido Jurado, Juan   +2 more
core   +1 more source

Меры по снижению вибрации в генераторах [PDF]

open access: yes, 2016
Данная статья посвящена изучению динамических процессов происходящих в технологической системе. Основным вредным динамическим процессом является вибрация.
Gavrilin, Aleksei Nikolaevich   +2 more
core  

Home - About - Disclaimer - Privacy