Wind turbine wake measurements with automatically adjusting scanning trajectories in a multi-Doppler lidar setup [PDF]
In the context of the Perdigão 2017 experiment, the German Aerospace Center (DLR) deployed three long-range scanning Doppler lidars with the dedicated purpose of investigating the wake of a single wind turbine at the experimental site.
N. Wildmann, N. Vasiljevic, T. Gerz
doaj +1 more source
A new sensorless method for switched reluctance motor drives [PDF]
This paper describes a new method for indirect sensing of the rotor position in switched reluctance motors (SRMs) using pulse width modulation voltage control.
Gallegos-Lopez, G. +2 more
core +1 more source
Induction machine fault detection enhancement using a stator current high resolution spectrum [PDF]
Fault detection in squirrel cage induction machines based on stator current spectrum has been widely investigated. Several high resolution spectral estimation techniques have been developed and used to detect induction machine abnormal operating ...
CHARPENTIER, Jean-Frederic +8 more
core +1 more source
Analytical methods and transient finite element analysis (FEA) with rotating mesh are used to calculate rotor eddy current power loss in a permanent magnet synchronous generator (PMSG) connected to an uncontrolled bridge rectifier.
Sharkh, S.M. +4 more
core +1 more source
An Application to Transient Current Signal based Induction Motor Fault Diagnosis of Fourier-Bessel Expansion and Simplified Fuzzy ARTMAP [PDF]
The start-up transient signals have been widely used for fault diagnosis of induction motor because they can reveal early defects in the development process, which are not easily detected with the signals in the steady state operation. However, transient
Ball, Andrew +4 more
core +1 more source
Design of Meteorological Element Detection Platform for Atmospheric Boundary Layer Based on UAV
Among current detection methods of the atmospheric boundary layer, sounding balloon has disadvantages such as low recovery and low reuse rate, anemometer tower has disadvantages such as fixed location and high cost, and remote sensing detection has ...
Yonghong Zhang +2 more
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Low-Altitude Aerial Methane Concentration Mapping
Detection of leaks of fugitive greenhouse gases (GHGs) from landfills and natural gas infrastructure is critical for not only their safe operation but also for protecting the environment.
Bara J. Emran +2 more
doaj +1 more source
Motor current signature analysis (MCSA) has been an effective way of monitoring electrical machines for many years. However, inadequate accuracy in diagnosing incipient broken rotor bars (BRB) has motivated many studies into improving this method.
Gu, Fengshou +10 more
core +1 more source
Minor rotor tines and knives soil interaction. Total power calculation for minor rotor drive
Introduction. The problem of fast and high-quality road construction, when economic facilities and settlements are spatially separated, located at a considerable distance from each other, cannot be solved without the use of a complex of continuous units.
V. A. Nikolaiev
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MONITORING SEABIRDS AND MARINE MAMMALS BY GEOREFERENCED AERIAL PHOTOGRAPHY [PDF]
The assessment of anthropogenic impacts on the marine environment is challenged by the accessibility, accuracy and validity of biogeographical information.
G. Kemper +3 more
doaj +1 more source

