Results 11 to 20 of about 265,602 (329)

Reconstruction of the hydro generator excitation system on hydro power plant Trebinje 1 [PDF]

open access: yesTehnika, 2022
The excitation system of the hydro unit is a static self-excitation system that uses thyristor rectifiers in a three-phase fully controllable bridge connection with a digital two-channel regulation system characterized by a very fast response (eng.
Traparić Mirko M., Miljanić Zoran V.
doaj   +1 more source

Excitation system testing in HPP 'Uvac' [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2011
The excitation system of hydro unit in HPP 'Uvac' and results of testings of excitation system performed for achieving of unit's mathematical model are presented in this paper.
Milojčić Nemanja   +5 more
doaj   +1 more source

Nonlinear Frequency Response Analysis of Double-helical Gear Pair Based on the Incremental Harmonic Balance Method

open access: yesShock and Vibration, 2021
The torsional dynamic model of double-helical gear pair considering time-varying meshing stiffness, constant backlash, dynamic backlash, static transmission error, and external dynamic excitation was established. The frequency response characteristics of
Hao Dong   +3 more
doaj   +1 more source

Initial-Sensitive Dynamical Behaviors of a Class of Geometrically Nonlinear Oscillators

open access: yesShock and Vibration, 2022
The vibrating system of a class of linkage-slider structure is considered, and its initial-sensitive dynamical behaviors such as safe jump, locking instability, and chaos are studied. First, static bifurcation of the dynamical system is discussed.
Bo Qin, Huilin Shang, Huimin Jiang
doaj   +1 more source

КОМБІНОВАНЕ РЕГУЛЮВАННЯ КОМУТОВАНИМИ КОНДЕНСАТОРАМИ І ВЕНТИЛЬНИМ ПЕРЕТВОРЮВАЧЕМ НАПРУГИ АСИНХРОННОГО ГЕНЕРАТОРА АВТОНОМНО ПРАЦЮЮЧОЇ МІНІ-ГЕС

open access: yesПраці Інституту електродинаміки Національної академії наук України, 2023
The principles of operation and a static simulation model of the power-generating equipment of the autonomous power supply source based on a hydroelectric unit with a 275 kVA induction generator and a combined capacitor-inverter ...
Л.І. Мазуренко   +2 more
doaj   +1 more source

Turboset shaft voltage [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2016
The paper presents an analyses of shaft voltage and bearing current phenomena in electrical machines. An overview of the causes of these voltages and currents and their possible consequences is also given. The influence of the thyristor excitation system
Klasnić Ilija   +2 more
doaj   +1 more source

Transient stability analysis of dual excited synchronous generator with excitation control

open access: yesEnergy Reports, 2023
A Dual Excited Synchronous Generator (DESG) has two field windings. The stability enhancement of the power system can be achieved with felicitous control of these two field windings independently.
Ajaysekhar Agarala   +2 more
doaj   +1 more source

Dynamic characteristics analysis of disc-spring longitudinal shock absorber of ship shafting

open access: yesZhongguo Jianchuan Yanjiu, 2021
ObjectivesIn order to suppress the longitudinal vibration transfer of ship shafting, this paper put forward a design approach of applying disc-spring longitudinal shock absorber to the ship shafting, and carried out a study of dynamic characteristics ...
Ji XIA, Quanchao LI
doaj   +1 more source

Programmable logic controller based synchronous motor excitation system [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2011
This paper presents a 3.5 MW synchronous motor excitation system reconstruction. In the proposed solution programmable logic controller is used to control motor, which drives the turbo compressor.
Janda Žarko   +3 more
doaj   +1 more source

Quasi-Static Calibration Method of a High-g Accelerometer

open access: yesSensors, 2017
To solve the problem of resonance during quasi-static calibration of high-g accelerometers, we deduce the relationship between the minimum excitation pulse width and the resonant frequency of the calibrated accelerometer according to the second-order ...
Yan Wang, Jinbiao Fan, Jing Zu, Peng Xu
doaj   +1 more source

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