Results 11 to 20 of about 14,572 (263)
Large-scale distributed energy resources, such as electric vehicles (EVs) asymmetric access to low-voltage distribution systems, may cause security problems, including line congestion, voltage violation, and three-phase unbalance.
Jinli Zhao +5 more
doaj +1 more source
Unbalance Response Analysis of a Rotor Kit with Two Identical Discs Located Between Bearings
In this paper, the dynamic behavior of a rotor kit with two identical disks located between the plain bearings was analyzed. Modal and harmonic analysis of this rotor kit configuration were performed in the Ansys software package.
Marko Katinić +3 more
doaj +1 more source
Turbine Rotor Dynamics Models Considering Foundation and Stator Effects
The paper deals with the modelling of turbine rotors, including a foundation and stator parts, and with their dynamic analysis. The dynamics of turbines can be strongly influenced by the effects of a rotor foundation, and therefore suitable modelling ...
Michal Hajžman +3 more
doaj +1 more source
An Angular Speed and Position FLL-Based Estimator Using Linear Hall-Effect Sensors
This paper proposes using a frequency-locked loop-based detector to estimate rotational speed and angle position for an electric machine rotor shaft. The measurement system consists of arrays of permanent magnets fixed to the rotor shaft together with ...
Luis Ibarra +3 more
doaj +1 more source
Analysis on Unbalance Protection of SCB [PDF]
Shunt capacitor is a main measure to reactive power compensation of power system, which has the advantages of flexibility and economy. In order to guarantee the safety of shunt capacitor, the methods for protecting against over-voltage, under-voltage, over-current and unbalance in circuits according to the different operation modes are used. This paper
Qiang Fu, Jing-jie Hu, Xiao-ping Xiong
openaire +1 more source
Analysis of Progressively Unbalanced Induction Motor Current Signals Based on Information Entropy
The article presents the capabilities of a new fault identification method used for different fault levels. The method allows identifying unbalanced induction motor by only using stator current signals.
Ignas Andrijauskas, Rimas Adaskevicius
doaj +1 more source
Electric railway power systems (ERPS) as one of the most critical and high-power end-user loads of utility grids are characterized by outlandish power quality (PQ) problems all over the world.
Hamed Jafari Kaleybar +4 more
doaj +1 more source
Floating ring bearings are the commonly used type of bearing for automotive turbochargers. The automotive industry continuously investigates how to reduce the bearing friction losses and how to create silent turbochargers.
Rob Eling +3 more
doaj +1 more source
Functional assessment of patients with vertigo and dizziness in occupational medicine
Background Balance assessment relies on symptoms, clinical examination and functional assessment and their verification in objective tests. Our study was aimed at calculating the assessment compatibility between questionnaires, functional scales and ...
Ewa Zamysłowska-Szmytke +2 more
doaj +1 more source
This article presents experimental results on the algebraic identification of the magnitude and phase angle of unbalance in a rotor-bearing system in a Jeffcott configuration.
Jesús U. Quiroz-Bautista +3 more
doaj +1 more source

