Results 11 to 20 of about 131,930 (291)

Non-Uniform Aged Modules Reconfiguration for Large-Scale PV Array [PDF]

open access: yesIEEE Transactions on Device and Materials Reliability, 2017
In the past decades, a large number of photovoltaic (PV) plants have been built. Due to the minor physical differences between PV cells and the influence of environmental factors such as rains, temperature, and humidity, the aging of a PV array is often distributed unevenly within each PV module.
Yihua Hu   +4 more
openaire   +3 more sources

A Simple Analytic Method to Model and Detect Non-Uniform Air-Gaps in Synchronous Generators

open access: yesIranian Journal of Electrical and Electronic Engineering, 2010
The air-gap of electrical machines may become non-uniform due to low accuracy of the manufacturing machinery, in assembling processes, or by aging. Detection and monitoring of this phenomenon is very important and of interest.
A. Damaki Aliabad   +2 more
doaj   +1 more source

A modified XY model of transformer oil–paper insulation system including non‐uniform aging and conductance effect

open access: yesIET Generation, Transmission & Distribution, 2021
The accuracy and feasibility of the traditional XY model of transformer oil–paper insulation system are disputable since it ignored the effect of non‐uniform aging and conductance on dielectric response property.
Xianhao Fan   +5 more
doaj   +1 more source

Characterization and prediction of hygrothermally aged CFRP adhesive joint subjected to mode II load

open access: yesComposites Part C: Open Access, 2023
Carbon fiber composite adhesives joints provide higher specific strength and fatigue life than traditional joints. However, carbon fiber composites and adhesives are polymeric materials that may lose their integrity in hygrothermal environment ...
Mohd. Tauheed, Naresh V. Datla
doaj   +1 more source

Minimum Age of Information in the Internet of Things With Non-Uniform Status Packet Sizes

open access: yesIEEE Transactions on Wireless Communications, 2020
In this paper, a real-time Internet of Things (IoT) monitoring system is considered in which the IoT devices are scheduled to sample underlying physical processes and send the status updates to a common destination. In a real-world IoT, due to the possibly different dynamics of each physical process, the sizes of the status updates for different ...
Bo Zhou 0012, Walid Saad 0001
openaire   +2 more sources

Investigating Fourteen Countries to Maximum the Economy Benefit by Using Offline Reconfiguration for Medium Scale PV Array Arrangements

open access: yesEnergies, 2020
Over the past few years, electricity demand has been on the rise. This has resulted in renewable energy resources being used rapidly, considering the shortage as well as the environmental impacts of fossil fuel.
Mohammed Alkahtani   +6 more
doaj   +1 more source

Cost Effective Offline Reconfiguration for Large-Scale Non-Uniformly Aging Photovoltaic Arrays Efficiency Enhancement

open access: yesIEEE Access, 2020
In the past decades, a huge number of large-scale photovoltaic (PV) plants have been constructed all around the world. However, the capital and operational costs can be high, which limits their widespread applications.
Zuyu Wu   +4 more
doaj   +1 more source

Effects of power transformer high-frequency equivalent circuit parameters non-uniformity on fault diagnosis using SFRA test

open access: yesAin Shams Engineering Journal, 2022
The electric power transformer is an essential component of an electrical power system because it regulates the voltage level to provide the best possible system operation.
Khalid H. Ibrahim   +2 more
doaj   +1 more source

Non-Uniform Input-Based Adaptive Growing Neural Gas for Unstructured Environment Map Construction

open access: yesApplied Sciences, 2022
The research and development of special robots such as excavation robots is an important way to achieve safe and efficient production in coal mines.
Suyu Wang, Ze Ren, Miao Wu
doaj   +1 more source

Non-oestrogenic modalities to reverse urogenital aging [PDF]

open access: yes, 2021
Urogenital aging is a common process affecting all women in the post-menopausal period of their life, and it is substantially due to oestrogen deprivation after ovarian function cessation.
Apostolopoulos, Vasso   +12 more
core   +1 more source

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