Results 11 to 20 of about 6,884 (166)

A Novel VSG Control Strategy for UPS Voltage Source Inverter with Impulsive Load

open access: yesEnergies, 2022
This paper proposes a novel control strategy to alleviate the impulsive current for Uninterruptible Power Supply (UPS), which is designed based on the theory of virtual synchronous generator (VSG) and dynamic switching method.
Guofeng He   +4 more
doaj   +1 more source

Desain Generator Tegangan Tinggi Impuls 31,4 kV menggunakan Ignition Coil

open access: yesJurnal Elkomika, 2023
ABSTRAK Peralatan pembangkitan tegangan tinggi yang ada sejauh ini masih memerlukan perangkat-perangkat besar dan kompleks. Pada penelitian ini dihasilkan suatu alat pembangkit tegangan tinggi impuls yang menjawab persoalan dimensi dan kompleksitas ...
ABDUL SYAKUR   +3 more
doaj   +1 more source

Realization of universal periodic sequence generator on FPGA [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2016
This paper presents mathematical modeling and performance evaluation of different realizations of universal periodic digital signal generator based on infinite impulse response filter. The development kit used was Spartan 3E-Starter Board. Using
Petrović Miljan, Jovanović Milica
doaj   +1 more source

Effect of Secondary Combustion on Thrust Regulation of Gas Generator Cycle Rocket Engine

open access: yesApplied Sciences, 2022
Thrust regulation is applied to maintain the performance of the liquid propellant rocket engine. The thrust level of a rocket engine can be readily controlled by adjusting the number of propellants introduced into the combustion chamber. In this study, a
Sohaib Khan   +4 more
doaj   +1 more source

IMPULSE WAVES GENERATED BY LANDSLIDES

open access: yesCoastal Engineering Proceedings, 1970
A study programme has been initiated to investigate the impulse waves generated by landslides originating entirely above the water surface It may be seen that the characteristics of this wave depend mainly on the slide volume and the Froude number of the slide upon impact with the water The resulting wave goes through a transition period For the ...
J W Kamphuis, R. J. Bowering
openaire   +2 more sources

A New Phase Sequence Exchanging Control Method for Reducing Impulse Current and Voltage

open access: yesIEEE Access, 2019
Phase sequence exchanging technology (PSET) is a recently developed emergency control technology for out-of-step power systems. The PSET system does not satisfy the condition of synchronization however, and will produce impulse current and impact torque.
Yifan Li   +5 more
doaj   +1 more source

Study on debugging of lightning impulse voltage waveform for large capacity ±800kV converter transformer in high altitude area

open access: yesFrontiers in Energy Research, 2023
The Qinghai-Henan ±800kV UHV DC power transmission project is an UHV channel specially constructed for clean energy delivery, ±800kV converter transformers of the project are assembled and tested in Xining at an altitude of 2500 m, full-wave lightning ...
Ling Jiang   +12 more
doaj   +1 more source

Generalized impulse response analysis: General or Extreme? [PDF]

open access: yeseconoquantum, 2013
This note discusses a pitfall of using the generalized impulse response function (GIRF) in vector autoregressive (VAR) models (Pesaran and Shin, 1998). The GIRF is general because it is invariant to the ordering of the variables in the VAR. The GIRF, in fact, is extreme because it yields a set of response functions that are based on extreme identifying
openaire   +3 more sources

Energy-Saving Vibration Impulse Coal Degradation at Finely Dispersed Coal-Water Slurry Preparation

open access: yesMATEC Web of Conferences, 2015
Theoretical and experimental research results of processes of finely dispersed coal-water slurry preparation for further generation of energetic gas in direct flow and vortex gas generator plants have been presented.
Moiseev V.A.   +6 more
doaj   +1 more source

Shafting Torsional Vibration Analysis of 1000 MW Unit under Electrical Short-Circuit Fault

open access: yesApplied Sciences, 2021
Taking a 1000 MW turbine generator as the research object, the short-circuit fault in electrical disturbance is analyzed. Since it is very difficult to carry out fault analysis experiments and research on actual systems, simulation analysis is one of the
Honggang Pan   +4 more
doaj   +1 more source

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