Results 51 to 60 of about 7,891 (205)

Design aspects on HVDC cable joints

2018 12th International Conference on the Properties and Applications of Dielectric Materials (ICPADM), 2018
Today's power utilities are evolving towards a more environment-friendly form. Particularly, in undersea power transmission, offshore renewable energy integration and urban power transmission, HVDC cable systems play a significant role. As an essential part of the cable systems, cable joints are often the weakest and the most critical point. Hence, the
H. Ye, Z. Han, Y. Luo, Q. Zhuang, T. Fechner, H. Wang, X. Lei   +6 more
openaire   +2 more sources

Fault mode operation strategies for dual H-bridge current flow controller in meshed HVDC grid [PDF]

, 2018
Peer ...
Carvalho, Adriano, Gomis Bellmunt, Oriol, Mokhberdoran, Ataollah, Prieto Araujo, Eduardo, Sau Bassols, Joan, Silva, Nuno   +5 more
core   +2 more sources

HVDC Cable System Testing

High Voltage
This paper reviews the existing testing techniques for high voltage direct current (HVDC) cable systems, following as a backbone the structure of CIGRE Technical Brochure (TB) 852:2021 ‘Recommendations for testing DC extruded cable systems for power ...
Giovanni Mazzanti
doaj   +1 more source

New Differential Protection Method for Multiterminal HVDC Cable Networks

Energies, 2018
Ground faults in electrical power systems represent more than 90% of total faults. Their detection, location, and elimination are essential and must be carried out in a precise way to allow multiterminal high-voltage direct current (HVDC) cable networks ...
Ricardo Granizo Arrabé, Carlos A. Platero, Fernando Álvarez Gómez, Emilio Rebollo López   +3 more
doaj   +1 more source

Modelling Space Charge in HVDC Cable Insulation

, 2019
The design of high-voltage direct-current extruded cable is one of the most challenging issues in the cable industry, as the electric field distribution across the insulation can be strongly affected by the presence of space charge, which can subsequently affect its long-term reliability and life expectancy.
Yunpeng Zhan, George Chen, Miao Hao, Zhiqiang Xu, Lu Pu, Xuefeng Zhao, Haofei Sun, Sen Wang, Anxiang Guo, Jian Liu   +9 more
openaire   +3 more sources

Test system requirements for modelling future power systems [PDF]

, 2010
This paper discusses the need for new test system models to be developed and made available to researchers. A number of features of such test systems are proposed.
Bell, K.R.W., Tleis, A.N.D.
core   +1 more source

Influence of Polarity Reversal Period and Temperature Gradient on Space Charge Evolution and Electric Field Distribution in HVDC Extruded Cable

Energies, 2022
During the operation of HVDC extruded cables, voltage polarity reversal (VPR) is considered one of the most severe conditions for cable insulation.
Yifan Zhou, Bo Gao, Wei Wang, Ke Song
doaj   +1 more source

Review of recent research towards power cable life cycle management [PDF]

, 2017
Power cables are integral to modern urban power transmission and distribution systems. For power cable asset managers worldwide, a major challenge is how to manage effectively the expensive and vast network of cables, many of which are approaching, or ...
Dong, Xiang, Yi, Huajie, Zhou, Chengke
core   +1 more source

Hybrid HVDC for supply of power to offshore oil platforms [PDF]

, 2004
A HVDC hybrid system, comprising a line commutated thyristor HVDC converter and a STATCOM, is proposed in this paper for supplying power to offshore oil platforms that do not have their own generation. The proposed system combines the robust performance,
Andersen, B., Cartwright, P., Xu, L.
core  

ROCOV scheme for Fault Detection and Location in HVDC sytems [PDF]

, 2019
A reliable DC fault protection system is essential for the development of HVDC grids. Therefore, this paper deals with the voltage derivative ROCOV scheme to locate and detect DC faults.
Abarrategi, O., Díaz, J., Larruskain, D.M., Perez-Basante, A., Rubio, A.   +4 more
core   +2 more sources