Results 41 to 50 of about 84,074 (283)
Development and Application of a 10 kV Mechanical DC Circuit Breaker
Energies, 2019 A DC circuit breaker is piece of core equipment for DC grid construction and can achieve fast isolation of DC faults in the grid. In this paper, based on the fault characteristics and protection requirements of an AC/DC hybrid distribution network, the ...
Lu Qu +5 more
doaj +1 more source
Energies, 2020 The analysis and calculation of the short-circuit fault current in the DC grid is of great significance to the design and configuration of the converter station and DC circuit breaker parameters.
Haipeng Jia +5 more
doaj +1 more source
A Topology of Current limiting Hybrid DC Circuit Breaker
Journal of Harbin University of Science and Technology, 2023 To solve the problem that most of the current hybrid DC circuit breakers do not have the current limiting function and the cost is too high, a low-cost current limiting hybrid DC circuit breaker is proposed.When the fault occurs, the ultra-fast ...
DONG Henan +4 more
doaj +1 more source
Automated post-fault diagnosis of power system disturbances [PDF]
, 2006 In order to automate the analysis of SCADA and digital fault recorder (DFR) data for a transmission network operator in the UK, the authors have developed an industrial strength multi-agent system entitled protection engineering diagnostic agents (PEDA).
Davidson, E.M., McArthur, S.D.J.
core +1 more source
Optimizing the roles of unit and non-unit protection methods within DC microgrids [PDF]
, 2012 The characteristic behavior of physically compact, multiterminal dc networks under electrical fault conditions can produce demanding protection requirements.
Burt, Graeme +4 more
core +1 more source
A hybrid DC circuit breaker based on a generalized H-bridge circuit
Zhejiang dianli, 2023 Given the rapid development of multi-terminal DC power grids and the treatment of DC faults， a high-voltage hybrid DC circuit breaker based on a generalized H-bridge circuit is proposed.
LU Yi +6 more
doaj +1 more source
Reduced DC circuit breaker requirement on mixed converter HVDC networks [PDF]
, 2015 © 2015 IEEE.Recently proposed meshed HVDC networks include both converters and DC circuit breakers, and the fault currents experienced and therefore the capacity requirement of circuit breakers are dependent on the topology of converters used on the ...
Chaffey, G, Green, TC
core +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.
Barnes, Mike +3 more
core +2 more sources
Modified half-bridge modular multilevel converter for HVDC systems with DC fault ride-through capability [PDF]
, 2014 One of the main challenges of voltage source converter based HVDC systems is DC faults. In this paper, two different modified half-bridge modular multilevel converter topologies are proposed.
Aboushady, A.A., Ahmed, K.H.
core +2 more sources
Influence of UHV GIL access on transient recovery voltage of circuit breaker
电力工程技术, 2022 The access of ultra high voltage (UHV) gas-insulated transmission line (GIL) affects both the transient recovery voltage (TRV) amplitude and the rate of rise of TRV (RRRV) of circuit breakers,which may endanger the breaking capacity of circuit breakers ...
SUN Yi +5 more
doaj +1 more source