Results 21 to 30 of about 1,734,875 (297)

Molecular pyrolysis process and gas production characteristics of 3‐element mixed insulation oil under thermal fault

open access: yesHigh Voltage, 2022
Mixed insulation oil is considered as a desired substitute for traditional mineral oil. A novel 3‐element mixed insulation oil has been developed in our previous works, whose parameters satisfy the mineral oil standard (IEC 60296:2012).
Dawei Feng   +4 more
doaj   +1 more source

An economical hybrid DC circuit breaker with pre-current-limiting capability

open access: yesEnergy Reports, 2023
Multi-terminal flexible high-voltage-direct-current (HVDC) transmission and DC grid technology are developing rapidly, and the hybrid DC circuit breaker (DCCB) is usually used to protect the DC system, which can quickly remove the fault current and make ...
Guanlong Jia   +4 more
doaj   +1 more source

Probabilistic Power Flow for Hybrid AC/DC Grids with Ninth-Order Polynomial Normal Transformation and Inherited Latin Hypercube Sampling

open access: yesEnergies, 2019
This paper proposes a new probabilistic power flow method for the hybrid AC/VSC-MTDC (Voltage Source Control-Multiple Terminal Direct Current) grids, which is based on the combination of ninth-order polynomial normal transformation (NPNT) and inherited ...
Sui Peng   +7 more
doaj   +1 more source

Cold sintering process for fabrication of a superhydrophobic ZnO–polytetrafluoroethylene (PTFE) ceramic composite

open access: yesJournal of Advanced Ceramics, 2023
Composite coatings or films with polytetrafluoroethylene (PTFE) are typically utilized to offer superhydrophobic surfaces. However, the superhydrophobic surfaces usually have limited durability and require complicated fabrication methods.
Xuetong Zhao   +8 more
doaj   +1 more source

Reliability modelling of uninterruptible power supply using probability tree method [PDF]

open access: yes, 2006
The unreliability of public power lines have led to the need of uninterruptible power supply (UPS). Utility power failures will cause unacceptably high risk to the profitability, existence and growth of the vital aspect of business that depends heavily ...
Jovanovic, S., Lo, K.L., Rahmat, M.K.
core   +1 more source

Intelligent Start-Up Schedule Optimization System for a Thermal Power Plant

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
This paper proposes an intelligent start-up schedule optimization system for a thermal power plant. This system consists of a dynamic simulation, a neural network, and an interactive multi-objective programming technique. In this study, a new intelligent
Masakazu SHIRAKAWA   +2 more
doaj   +1 more source

Time Domain Strain/Stress Reconstruction Based on Empirical Mode Decomposition: Numerical Study and Experimental Validation

open access: yesSensors, 2016
Structural health monitoring has been studied by a number of researchers as well as various industries to keep up with the increasing demand for preventive maintenance routines.
Jingjing He   +5 more
doaj   +1 more source

Microcosmic mechanism and correction of moisture effect on furfural diffusion and equilibrium in oil‐paper insulation

open access: yesHigh Voltage, 2023
Furfural content in oil is considered as an effective parameter to evaluate the ageing state of oil‐immersed transformers. In previous thermal ageing experiments at 130°C, we found that moisture increment in oil‐paper system makes more furfural ...
Dawei Feng   +4 more
doaj   +1 more source

Power systems with high renewable energy sources: A review of inertia and frequency control strategies over time [PDF]

open access: yes, 2020
Traditionally, inertia in power systems has been determined by considering all the rotating masses directly connected to the grid. During the last decade, the integration of renewable energy sources, mainly photovoltaic installations and wind power ...
Fernández Guillamón, Ana   +3 more
core   +2 more sources

Two-dimensional convolution-based power system reliability assessment

open access: yesEnergy Reports, 2023
With the rise in carbon emissions, it has become fashionable to construct a new power system using new energy as the primary raw material for power generation.
Lewei Zhu   +3 more
doaj   +1 more source

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