Results 21 to 30 of about 21,770 (303)

Structural Study of Judaida Subsurface Structure, North of Iraq

Iraqi Geological Journal, 2022
This research focuses on the structural study of three folded horizons of Fat'ha, Jeribe, and the Euphrates in Judaida structure, Northern Iraq. Depth contour maps for three horizons using the time and velocity data called from seismic surveys.
Omar A. Naji, Manal Sh. AL-Kubaisi, Emad A. Al-Heety   +2 more
doaj   +1 more source

Influence of Negative Sequence Injection Strategies on Faulted Phase Selector Performance

Energies, 2022
Renewable power is expected to increase drastically in the coming years due to the energy transition. A large part of the newly installed generators will be connected to the power system through inverters and electronic converters, whose behaviour ...
María Teresa Villén, Maria Paz Comech, Eduardo Martinez Carrasco, Aníbal Antonio Prada Hurtado   +3 more
doaj   +1 more source

Multiphase induction motor drives - a technology status review [PDF]

, 2007
The area of multiphase variable-speed motor drives in general and multiphase induction motor drives in particular has experienced a substantial growth since the beginning of this century.
Abbas, Abolhassani, Andrese, Apsley, Atkinson, Bakhshai, Benatmane, Bendixen, Bojoi, Bojoi, Bojoi, Bojoi, Bojoi, Bojoi, Bojoi, Bojoi, Casadei, Coates, Correa, Correa, Corzine, de Silva, Dente, Duran, E. Levi, Edelson, F. Profumo, Farina, Ferraris, Ferreira, Figureoa, Gataric, Gerada, Golubev, Golubev, Golubev, Gopakumar, Gopakumar, Gritter, H.A. Toliyat, Hadiouche, Hadiouche, Hodge, Hou, Iqbal, Iqbal, Iqbal, Iqbal, Iqbal, Jacobina, Jacobina, Jacobina, Jacobina, Jahns, Jones, Jones, Jones, Jones, Jouanne, Kelly, Kestelyn, Kestelyn, Kestelyn, Kianinezhad, Klingshirn, Levi, Levi, Levi, Levi, Lipo, Locment, Lu, Lyra, Mantero, Mantero, McCoy, Mecrow, Merabtene, Miller, Miranda, Mitcham, Mohapatra, Mohapatra, Mokhtari, Monti, Nelson, Ojo, Oriti, Oudjebour, Parsa, Pereira, Pereira, R. Bojoi, Razik, Ryu, Ryu, S. Williamson, Semail, Semail, Shi, Siala, Silva, Singh, Smith, Smith, Steiner, Sudhoff, Takami, Terrien, Toliyat, Toliyat, Toliyat, Toliyat, Toliyat, Ward, Weh, Williamson, Xu, Xu, Zhao, Zhao, Zheng   +121 more
core   +1 more source

Multi-pole voltage source converter HVDC transmission systems [PDF]

, 2016
This study connects several modular multilevel converters to form multi-pole voltage source converter highvoltage dc (VSC-HVDC) links which are suited for bulk power evacuation, with increased resiliency to ac and dc network faults.
Ased, Grain Philip, Williams, Barry W.
core   +1 more source

Research on the Control Method of the PV Grid-Connected Inverter under an Asymmetrical Power Grid Fault

Energies, 2023
The negative-sequence current component and harmonic components generated when an asymmetrical fault occurs in the power grid seriously affect the normal operation of the photovoltaic (PV) grid-connected inverter.
Shiji Tian, Min Lu, Ruikang Wang, Di’an Liu   +3 more
doaj   +1 more source

3D Transient Electromagnetic-Temperature Field Analysis of the Loss and Heat of the Damper Bars of a Large Tubular Hydro-Generator During Short Circuit Faults

IEEE Access, 2020
This paper studies a real 36-MW large tubular hydro-generator to solve the transient variation problem of the loss and heat of damper bars during short circuit faults in tubular hydro-generators.
Qing-Ling Hu, Ke Xiao, Zhi-Ting Zhou, Zhen-Nan Fan, Yong Yang, Zu-Ying Bian, Jing-Can Li, Bing Yao   +7 more
doaj   +1 more source

Asymmetrical Fault Correction for the Sensitive Loads Using a Current Regulated Voltage Source Inverter

Energies, 2016
Numerous industrial applications involve loads that are very sensitive to electrical supply instabilities. These instances involve various types of voltage imbalances as well as more serious disturbances such as symmetrical and asymmetrical faults.
Syed Sabir Hussain Bukhari, Shahid Atiq, Thomas A. Lipo, Byung-il Kwon   +3 more
doaj   +1 more source

Sliding Mode Control Based Supercapacitor Modeling for Dynamic Stability in DFIG Based Wind Turbines

Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2022
The supercapacitor is among the elements commonly used to store energy as an important component in sustainable energy systems. In doubly fed induction generators (DFIGs), the supercapacitor is used to compensate voltage dips and damping oscillations. In
Uğur Güvenç, Enes Kaymaz, Mehmet Kenan Döşoğlu   +2 more
doaj   +1 more source

Fault and magmatic interaction within Iceland's western rift over the last 9kyr [PDF]

, 2003
We present high-resolution 'Chirp' sub-bottom profiler data from Thingvallavatn, a lake in Iceland's western rift zone. These data are combined with stratigraphic constraints from sediment cores to show that movement on normal faults since 9 ka are ...
A. I. Best, Alex, Haflidason, J. K. Dix, J. M. Bull, K. Thors, Kjartansson, N. C. Mitchell, Pollard, Rubin, Saemundsson, T. A. Minshull, Thors, Tryggvason   +13 more
core   +1 more source

Assessment of a Universal Reconfiguration-less Control Approach in Open-Phase Fault Operation for Multiphase Drives [PDF]

, 2019
Multiphase drives have been important in particular industry applications where reliability is a desired goal. The main reason for this is their inherent fault tolerance. Di erent nonlinear controllers that do not include modulation stages, like direct
Barrero, Federico, Bermúdez, Mario, Durán, Mario J., González Prieto, Ignacio, Salas Biedma, Pedro   +4 more
core   +2 more sources