Results 51 to 60 of about 777,862 (195)
Research on the Modification Plan of HVDC Transfer Switch Arrester
南方能源建设, 2022 [Introduction] During the earth return and metallic return mode conversion of China's HVDC transmission projects in operation, several MRTB (metallic return transfer breaker) or ERTB (earth return transfer breaker) oscillation platform arrester damage ...
LU Yuxin +5 more
doaj +1 more source
Intersystem fault between MMC‐HVDC and AC systems and its impact on DC/AC protection
IET Generation, Transmission & Distribution, 2022 Flexible DC and AC transmission lines can be arranged across vertically or sharing transmission corridor. Under this condition, the possibility of intersystem fault increases significantly, which endangers the safety of both DC and AC systems.
Wenbo Wang +5 more
doaj +1 more source
A Zero Crossing Hybrid Bidirectional DC Circuit Breaker for HVDC Transmission Systems
Energies, 2021 With the increasing demand for renewable energy power generation systems, high-power DC transmission technology is drawing considerable attention. As a result, stability issues associated with high power DC transmission have been highlighted.
Geon Kim +4 more
doaj +1 more source
High Voltage, EarlyView.ABSTRACT Damage degradation of epoxy resin insulating materials by free radicals triggered by the ultraviolet irradiation environment at high altitude has become a key issue that restricts the reliability of the bridge arm reactor at high altitude.
Liang Zou +5 more
wiley +1 more source
High Voltage, EarlyView.ABSTRACT To effectively suppress transient overvoltages in HVDC systems, the design and experimental validation of a multi‐module series controllable arrester are presented. The voltage‐limiting performance, series voltage equalisation capability, and robustness under fault conditions in high‐voltage scenarios require further research.
Tai Yang +4 more
wiley +1 more source
Fault Diagnosis Method for DC Current Transformers Based on Deep Learning Hybrid Model
Vector: The Journal of Engineering, Volume 2027, Issue 1, January/December 2027.Aiming at the problems of scarce fault samples, strong noise interference and complex feature coupling in the current DCCT fault diagnosis process, a DCCT fault diagnosis method based on a hybrid deep learning model is proposed. The performance of the proposed method is verified through experiments.
Cai Xu +4 more
wiley +1 more source
Feasible protection strategy for HVDC system by means of SFCL and passive resonance DC breaker
The Journal of Engineering, 2019 The key obstacle in implementing high-voltage direct current (HVDC) grid, which is considered as the future of power grid, is the absence of effective DC circuit breaker (DCCB). At present, HVDC grid could be based on half-bridge (HB) or full-bridge (FB)
Ho-Yun Lee +3 more
doaj +1 more source
Hybrid DC circuit breaker with coupled inductor for automatic current commutation [PDF]
, 2020 HVDC transmission systems using voltage source converters (VSC-HVDC) have been identified as an attractive solution for bulk power delivery over long distance. However if DC grids are to be built using this technology, fast DC circuit breakers are needed.
Smith, Alexander C.; id_orcid +9 more
core +1 more source
High Voltage, Volume 11, Issue 5, Page 1685-1706, October 2026.ABSTRACT This paper provides an overview of high‐temperature superconducting (HTS) cables in DC systems, with a focus on their deployment in high‐voltage DC (HVDC) networks. The assessment of HTS cable properties—such as extremely low electrical resistance, high current‐carrying capacity and a compact geometry—and their comparison with those of ...
Mohammad Hossein Mousavi +2 more
wiley +1 more source
High Voltage, 2017 Multi-terminal voltage-sourced converters (VSC) high-voltage direct current (HVDC) transmission system is expected to play a vital role in future power systems.
Bin Chang +6 more
doaj +1 more source