Steady-state unbalance response of a three-disk flexible rotor on flexible, damped supports [PDF]
Experimental data are presented for the unbalance response of a flexible, ball bearing supported rotor to speeds above the third lateral bending critical. Values of squeeze film damping coefficients obtained from measured data are compared to theoretical
Cunningham, R. E.
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Dynamic mode decomposition based fault diagnosis in three-phase electrical machines
Results in EngineeringThree-phase electrical machines are widely used in various industrial applications, and the mechanical fault in those machines leads to an oscillation in the load torque, which introduces an amplitude and/or phase modulation in the stator current.
Saravanakumar Rajendran +4 more
doaj +1 more source
Development of procedures for calculating stiffness and damping of elastomers in engineering applications. Part 5: Elastomer performance limits and the design and test of an elastomer damper [PDF]
Tests were performed on elastomer specimens of the material polybutadiene to determine the performance limitations imposed by strain, temperature, and frequency.
Darlow, M. S. +2 more
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Comparison between two VSC-HVDC transmission systems technologies : modular and neutral point clamped multilevel converter [PDF]
, 2009 The paper presents a detail comparison between two voltage source converter high voltage dc transmission systems, the first is based on neutral point-clamped (also known as HVDC-Light) and the second is based on innovative modular multilevel converter ...
Adam, G.P. +5 more
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Analysis and Effects off Unsymmetrically Loaded Three-Phase Network
Advances in Electrical and Electronic Engineering, 2002 The paper analyses current and voltage unbalance caused by various unsymmetric loads in MV and HV networks. It refers to a different unbalance definitions and compares them with the values measured by apparatus dedicated to the power quality measurements.
Michal Pokorny +3 more
doaj
Acoustic characterization of a three-phase asynchronous machine under stator unbalance defects
e-Prime: Advances in Electrical Engineering, Electronics and EnergyDiagnosing faults in three-phase asynchronous machines (ASMs) is crucial in industrial environments, where non-invasive techniques such as acoustic analysis and thermography are preferred for detecting malfunctions in these machines.
Abderrahman El Idrissi +5 more
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Frontiers in Energy ResearchIn this paper, A coordinated power quality improvement control strategy for three-phase four-Leg flexible interconnection converter (3P4L-FIC) based AC/DC hybrid distribution networks is proposed, which can address three-phase unbalance issues in AC area
Qihui Feng +5 more
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Penentuan Kapasitor pada Self Excited Induction Generator (Seig) Tiga Fasa untuk Pengoperasian Beban Satu Fasa dengan Algoritma Kunang-kunang [PDF]
, 2018 Self Excited Induction Generator (SEIG) is widely used in isolated area due to the ability to produce excitation indipendently without having to connect with the grid. Often SEIG operates as single phase to adjust load condition in isolated area.
APERTI, A. (Admin)
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Reactive compensation scheme of three phase unbalance based on AC chopper device
Gong-kuang zidonghua, 2013 The paper proposed a scheme of using AC chopper device to compensate three phase unbalanced system dynamically and gave the device structure. The simulation result verified that the AC chopper device can adjust output voltage by changing duty ratio, and ...
CHENG Shun-zu, GUO Xi-jin, LI Su-ying
doaj
Experimentally determined stiffness and damping of an inherently compensated air squeeze-film damper [PDF]
Values of damping and stiffness were determined experimentally for an externally pressurized, inherently compensated, compressible squeeze-film damper up to excitation frequencies of 36,000 cycles per minute.
Cunningham, R. E.
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