Results 91 to 100 of about 722,410 (223)
Bridge-type fault current limiter and hybrid breaker for HVDC grids applications
, 2020 © The Institution of Engineering and Technology 2020. The fast raising nature of DC fault currents and sensitivity of high-voltage DC (HVDC) power converters to DC faults is critical protection issues.
Rouzbehi, K +4 more
core +1 more source
Energies, 2019 The half bridge (HB) modular multilevel converter (MMC) technology is considered a breakthrough to mitigate the shortcomings of the conventional voltage source converter (VSC) in high-voltage direct-current (HVDC) grid application.
Ho-Yun Lee +4 more
doaj +1 more source
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
Closing performance of the Thomson-coil actuator for a 110 kV FMS
The Journal of Engineering, 2019 In the 500 kV hybrid high-voltage direct current (HVDC) circuit breaker, there are five 110 kV fast mechanical switches (FMSs) in the nominal current path.
Yannan Zhou +5 more
doaj +1 more source
Fault current testing envelopes for VSC HVDC circuit breakers
IET Generation, Transmission & Distribution, 2015 Circuit breakers for high voltage direct current (HVDC) applications are seen as a required technological step in the development of HVDC grids. The development of several new HVDC circuit breaker prototypes indicate that this step may be achieved in the years to come.
Barnes, Michael +4 more
openaire +3 more sources
Optical fiber imaging for high speed plasma motion diagnostics: applied to low voltage circuit breakers [PDF]
, 2010 An integrated portable measurement system is described for the study of high speed and high temperature unsteady plasma flows such as those found in the vicinity of high current switching arcs.
Tribulato, G. +9 more
core +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
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
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
Technical Assessment of Load Commutation Switch in Hybrid HVDC Breaker
, 2015 The development of a large-scale high-voltage direct current (HVDC) power grid requires a reliable, fast, and low-loss 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, B. +2 more
core +1 more source