scholarly journals Fast initial continuous current pulses versus return stroke pulses in tower-initiated lightning

2016 ◽  
Vol 121 (11) ◽  
pp. 6425-6434 ◽  
Author(s):  
Mohammad Azadifar ◽  
Farhad Rachidi ◽  
Marcos Rubinstein ◽  
Vladimir A. Rakov ◽  
Mario Paolone ◽  
...  
Keyword(s):  
Return Stroke ◽  
Current Pulses ◽  
Continuous Current

Burst of intracloud current pulses during the initial continuous current in a rocket-triggered lightning flash

2014 ◽  
Vol 41 (24) ◽  
pp. 9174-9181 ◽  
Author(s):  
Gaopeng Lu ◽  
Rubin Jiang ◽  
Xiushu Qie ◽  
Hongbo Zhang ◽  
Zhuling Sun ◽  
...  
Keyword(s):  
Lightning Flash ◽  
Current Pulses ◽  
Triggered Lightning ◽  
Continuous Current

Evaluation of Backflashover Taking Induced Voltages by Return Stroke Current into Considerations

1993 ◽  
Vol 113 (11) ◽  
pp. 1249-1255
Author(s):  
Soji Kojima ◽  
Masahiro Kan ◽  
Shigeru Yokoyama ◽  
Tosiaki Ueda
Keyword(s):  
Return Stroke

Electrodeposition of Cu2O Particles by Using Electrolyte Solution Containing Glucopone as Surfactant

2009 ◽  
Vol 1 (2) ◽  
pp. 18-20
Author(s):  
Dahyunir Dahlan
Keyword(s):  
Indium Tin Oxide ◽  
Pulse Current ◽  
Platinum Electrode ◽  
Saturated Calomel Electrode ◽  
X Ray Diffraction ◽  
X Ray ◽  
Glass Substrates ◽  
Continuous Current ◽  
Oxide Particles ◽  
Cupric Sulphate

Copper oxide particles were electrodeposited onto indium tin oxide (ITO) coated glass substrates. Electrodeposition was carried out in the electrolyte containing cupric sulphate, boric acid and glucopone. Both continuous and pulse currents methods were used in the process with platinum electrode, saturated calomel electrode (SCE) and ITO electrode as the counter, reference and working electrode respectively. The deposited particles were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). It was found that, using continuous current deposition, the deposited particles were mixture of Cu2O and CuO particles. By adding glucopone in the electrolyte, particles with spherical shapes were produced. Electrodeposition by using pulse current, uniform cubical shaped Cu2O particles were produced

Investigation of Zero Crossing Detection for First Return Stroke in Negative Cloud-to-Ground Lightning Flash

2019 ◽  
Vol 11 (3) ◽  
Author(s):  
Ahmad Idil Abd Rahman ◽  
◽  
Muhammad Akmal Bahari ◽  
Zikri Abadi Baharudin ◽  
◽  
...  
Keyword(s):  
Lightning Flash ◽  
Return Stroke ◽  
Zero Crossing ◽  
Cloud To Ground Lightning

Power Experimental Optimization of Horizontal Axis Wind Turbine

2020 ◽  
Vol 13 (3) ◽  
pp. 438-443
Author(s):  
Sadek Ameziane ◽  
Abdesselem Chikhi ◽  
Mohammed Salah Aggouner
Keyword(s):  
Wind Turbine ◽  
Vertical Axis ◽  
Energy System ◽  
Spatial Filter ◽  
Complex Model ◽  
Vertical Axis Wind Turbine ◽  
Horizontal Axis Wind Turbine ◽  
Detailed Model ◽  
Continuous Current ◽  
Mechanical Sensors

Background: The presented article is a contribution to the realization of a wind emulator based on a continuous-current machine. The development of this topic focuses on the modeling of a vertical axis wind turbine, a DC motor with independent excitation and its control via a chopper. Methods: To carry out this work, we have studied and designed the electronic and mechanical sensors as well as a command implemented on the dSPACE DS1103 system. Results: The main purpose of this work is related, on one hand, to the control of the motor turbine by imposing the wind profile and on the other hand generate the command of the implanted MPPT. The experimental results obtained showed the great performances which characterize this improved wind energy system. Conclusion: Finally, a wind turbine with variable speed is a system having a complex model; however, a detailed model of the interaction between the wind and the aero-turbine is useful to understand certain phenomena such as rotational sampling or the spatial filter.

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