Results 21 to 30 of about 1,539,180 (166)

Time-Frequency Transformation Technique with Various Mother Wavelets for DC Fault Analysis in HVDC Transmission Systems

Sir Syed University Research Journal of Engineering and Technology, 2023
HVDC transmission has become a cost-effective option for transferring high voltage over greater distances. Protecting an HVDC transmission line is more challenging than protecting an AC transmission line due to its low impedance and absence of zero ...
Hasnain Raza chandio, Aslam Pervez Memon
doaj  

HYBRID AC/MT-HVDC TRANSMISSION LINES AND ITS EFFECTIVE OPERATION USING ENHANCED-FISH SWARM OPTIMIZER [PDF]

Proceedings on Engineering Sciences, 2023
Multi-Terminal-High Voltage Direct Current (MT-HVDC) transmission lines are used to transmit electricity over long distances with lower losses compared to traditional Alternating Current (AC) transmission lines.
Prabhat Kumar Srivastava, Ezhilarasan G., Divya Paikaray, Sakshi Singh, Manish Srivastava, Anshu Kumar   +5 more
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Recent advances in High-Voltage direct-current power transmission systems [PDF]

, 2006
The ever increasing progress of high-voltage high-power fully-controlled semiconductor technology continues to have a significant impact on the development of advanced power electronic apparatus used to support optimised operations and efficient ...
Nikolas Flourentzou, Demetriades, G.D., Vassilios G. Agelidis, Georgios D. Demetriades, Flourentzou, N., Agelidis, V.G.   +5 more
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Overview of Research on Stability and Control of VSC-HVDC

发电技术, 2019
Voltage source converter based high voltage direct current (VSC-HVDC) transmission systems has the advantages of good active and reactive power control capability and more suitable for multi-terminal transmission system.
Mingzhe WU, Wuhui CHEN
doaj   +1 more source

HVDC-System-Interaction Assessment through Line-Flow Change-Distribution Factor and Transient-Stability Analysis at Planning Stage

Energies, 2016
Many of the recent projects for new transmission line have considered the high-voltage direct current (HVDC) system, owing to the many advantages of the direct current (DC) system.
Sungchul Hwang, Jaegul Lee, Gilsoo Jang
doaj   +1 more source

HVDC technologies in electric power transmission: International practices and development pathways in Kazakhstan [PDF]

E3S Web of Conferences
High-voltage direct current (HVDC) transmission lines represent a key component of modern energy infrastructure, providing efficient longdistance electricity transmission and integration of renewable energy sources.
Akhatov Daulet, Zhautikov Bakhyt, Sivyakova Galina, Nikulshin Alexandr, Druzhinin Valery, Kamarova Saule, Kuntush Yelena, Siverskaya Tatyana   +7 more
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Power electronics options for large wind farm integration : VSC-based HVDC transmission [PDF]

, 2006
This paper describes the use of voltage source converter based HVDC transmission (VSC transmission) system for grid integration of large wind farms over long distance.
Xu, Lie, Yao, Liangzhong, Lie Xu, Liangzhong Yao, Sasse, C., Christian Sasse, Xu, L., Yao, L., Sasse, Christian   +8 more
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Selective Harmonic Elimination Modulation for HVDC Modular Multilevel Converter

, 2021
This paper proposes the application of a mixed selective harmonic elimination mitigation modulation algorithm to three-phase HVDC modular multilevel converters. Defining 1 the number of levels, two cases have been considered: t=65 and t=257.
Cimoroni M. G., Cecati C., Carlo Cecati, Concettina Buccella, Buccella C., Maria Gabriella Cimoroni   +5 more
core   +1 more source

Strategy for Suppressing Commutation Failures in High-Voltage Direct Current Inverter Station Based on Transient Overvoltage

Energies
Commutation failures in high-voltage direct current (HVDC) transmission systems often occur within inverter stations, posing challenges to the safe and consistent operation of HVDC transmission projects.
Dandan Zhao, Shaoyin He, Hua Huang, Zheng Han, Lv Cui, Yuxin Li   +5 more
doaj   +1 more source

High voltage direct current (HVDC) transmission: Future expectation for Pakistan

CSEE Journal of Power and Energy Systems, 2019
An HVDC transmission system for bulk power transfer over longer distance offers numerous advantages over an alternating current (AC) transmission system, such as direct integration of networks operating at different frequencies, comparatively low line ...
Kamran Hafeez, Shahid A. Khan
doaj   +1 more source