Results 81 to 90 of about 663,349 (153)
Results in EngineeringThis paper proposes a Hybrid Multi-Port DC Circuit Breaker (HMPDCCB) design that addresses the limitations of existing hybrid DC circuit breakers (HDCCBs), such as high cost, complexity, and slow response to high fault current and voltage demands.
Qumrish Arooj, Imtiaz Ahmad Taj
doaj +1 more source
Novel fault current-limiting scheme for MMC-based flexible HVDC system
The Journal of Engineering, 2019 Currently, the flexible direct current transmission technique becomes a research focus around the world, and be applied in power engineering projects gradually.
Yueyang Ma +4 more
doaj +1 more source
An improved fault current limiter for hybrid DC circuit breakers in large-scale MMC-HVDC systems
Mehran University Research Journal of Engineering and TechnologyDesigning multi-terminal HVDC systems presents significant challenges, particularly in control, modeling, and protection. One of the most critical concerns is the protection of these systems from DC short circuits.
Rashid Hussain Chandio +3 more
doaj +1 more source
Comparison and analysis of the fault arc characteristics of flexible DC transmission lines
The Journal of Engineering, 2019 VSC-HVDC grid is one of the important development directions of the smart grid in the future. The arc characteristics of transient fault on the transmission line are the theoretical basis for determining reclosing time and reclosing strategy of DC ...
Botong Li +3 more
doaj +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,
Cartwright, P., Andersen, B., Xu, L.
core +2 more sources
Technical assessment of load commutation switch in hybrid HVDC breaker
, 2014 The development of a large scale high voltage direct current (HVDC) power grid requires a reliable, fast and lowloss circuit breaker. The load commutation switch (LCS) is an essential part of ABB's 1200 MW hybrid HVDC breaker concept which builds up a ...
Jacobson, Björn +5 more
core +1 more source
Analysis of Arc Re-Ignition in Vacuum Interrupter-Based HVdc Circuit Breakers
IEEE AccessThe protection of HVdc systems has long been challenged by the absence of natural current zero-crossing, typically addressed using L-C branches. However, the phenomenon of multiple arc reignitions in vacuum interrupter (VI) based HVdc circuit breakers ...
Tamer Eliyan +3 more
doaj +1 more source
A novel thyristor‐based hybrid DC circuit breaker with short arcing capability
High VoltageMulti‐terminal flexible high‐voltage direct current (HVDC) transmission and DC grid technology are developing rapidly. The hybrid DC circuit breaker (HCB) has broad application prospects in the field of HVDC transmission and DC power grid.
Guanlong Jia +4 more
doaj +1 more source
Research on the Press-pack IGBT with High SCSOA
Kongzhi Yu Xinxi Jishu, 2017 DC breaker is one of the main equipment of HVDC system converter station. As an essential component of DC breaker, the electrical performance and reliability of the press-pack IGBT (insulated gate bipolar transistor) are particularly important.
LENG Guoqing +5 more
doaj
Evaluation of the efficacy of transient overvoltages suppression measures in different wind farm topologies using SF6 circuit breaker. [PDF]
Sci Rep, 2023 Eliyan T, Wadie F.
europepmc +1 more source