Results 31 to 40 of about 787,692 (200)

Electric vehicle battery performance investigation based on real world current harmonics [PDF]

, 2020
Electric vehicle (EV) powertrains consist of power electronic components as well as electric machines to manage the energy flow between different powertrain subsystems and to deliver the necessary torque and power requirements at the wheels.
Amamra, Sid-Ali, Barai, Anup, Marco, James, Moore, Andrew D., Tripathy, Yashraj   +4 more
core   +1 more source

Magnetic linear driving method for high-voltage direct current inspection robot

International Journal of Advanced Robotic Systems, 2020
Faced with the problem of frequent slippage of the wheel-arm inspection robot in overhead high-voltage transmission lines, a magnetic linear drive method, based on high-voltage direct current (HVDC) magnetic field, is proposed: The ampere force of an ...
Xian Jin Xu, Hao Da Chen, Zhi Yong Yang, Shi Chao Hu, Yu Yan   +4 more
doaj   +1 more source

HVDC (High Voltage Direct Current) Transmission System: A Review Paper [PDF]

Gyancity Journal of Engineering and Technology, 2018
Back in the early days of electricity supply, AC (alternating current) was adopted for power transmission because it could be stepped up or down as needed by transformers and because it could be interrupted more easily than DC (direct current). High-voltage AC grids evolved as an efficient way to connect existing islands of distribution grids and large
Kumar, Abhishek, Hussain, Dil muhammed Akbar   +1 more
openaire   +1 more source

Sustained arc ignition system [PDF]

, 1977
Circuitry for maintaining an arc or spark across a spark gap for a desired length of time is disclosed. A high voltage, direct current source is connected in series with a secondary winding of a high voltage, stepup transformer or coil and a spark gap ...
Birchenough, A. G.
core   +1 more source

Probing superconducting phase fluctuations from the current noise spectrum of pseudogaped metal-superconductor tunnel junctions

, 2000
We study the current noise spectra of a tunnel junction of a metal with strong pairing phase fluctuation and a superconductor. It is shown that there is a characteristic peak in the noise spectrum at the intrinsic Josephson frequency $\omega_J=2eV$ when $
A. G. Loeser, A. M. Goldman, B. Janko, B. Janko, Ch. Renner, D. B. Haviland, D. N. Basov, D. Rogovin, D. S. Marshall, E. V. Bezuglyi, G. B. Lesovik, G. D. Mahan, H. Ding, J. Maly, J. W. Loram, K. C. Chou, L. V. Keldysh, M. Franz, M. Takigawa, P. J. Hirschfeld, Tai-Kai Ng, Tao Xiang, V. Emery, Xi Dai, Zhao-bin Su   +24 more
core   +2 more sources

Inertia emulation control strategy for VSC-HVDC transmission systems [PDF]

, 2013
There is concern that the levels of inertia in power systems may decrease in the future, due to increased levels of energy being provided from renewable sources, which typically have little or no inertia.
Adam, Grain Philip, Booth, Campbell, Bright, C.G., Roscoe, Andrew, Zhu, Jiebei   +4 more
core   +1 more source

A Survey of Hybrid Circuit Breakers: Component-Level Insights to System-Wide Integration

IEEE Open Journal of Power Electronics
This survey provides a comprehensive review of hybrid circuit breakers and their applications in 1 kV to 800 kV, both alternating current and direct current systems.
Yuchen He, Chunmeng Xu, Yuan Li, Fang Z. Peng   +3 more
doaj   +1 more source

Comparative study of AC and positive and negative DC visual corona for sphere-plane gaps in atmospheric air [PDF]

, 2018
Due to the expansion of high-voltage direct current (HVDC) power systems, manufacturers of high-voltage (HV) hardware for alternating current (ac) applications are focusing their efforts towards the HVDC market. Because of the historical preponderance of
Capelli, Francesca, Morosini, Andrea, Riba Ruiz, Jordi-Roger   +2 more
core   +2 more sources

Effects of Conditional Changes on High-Voltage Direct Current Transmission Line Characteristic

Journal of Electrical and Computer Engineering, 2022
The high-voltage direct current (HVDC) transmission system, which links the Gurun Substation of the National Electric Authority of Malaysia (Tenaga Nasional Berhad, TNB) with the Khlong Ngae Station of the Electricity Generating Authority of Thailand ...
Chaichan Pothisarn, Atthapol Ngaopitakkul, Monthon Leelajindakrairerk, Natthanon Phannil, Sulee Bunjongjit, Surakit Thongsuk, Bancha Sreewirote   +6 more
doaj   +1 more source

Improved Two-Level Voltage Source Converter for High-Voltage Direct Current Transmission Systems [PDF]

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2017
this paper presents an improved two-level voltage source converter for dc transmission systems with relatively low rated power and dc operating voltage. Unlike conventional two-level converter, the presented converter employs two distributed cell capacitors per three-phase; thus, do not contribute any current when converter is blocked during dc short ...
Grain Philip Adam, Ibrahim Abdelsalam, John Edward Fletcher, Lie Xu, Graeme M. Burt, Derrick Holliday, Stephen Jon Finney   +6 more
openaire   +3 more sources