Results 11 to 20 of about 777,862 (195)
HVDC Circuit Breakers–A Review [PDF]
IEEE Access, 2020 HVDC circuit breakers are of increasing importance, as multi-terminal high voltage DC (HVDC) transmission becomes a commercial reality. Multiple HVDC breaker technologies have been developed, and are starting to appear as proof-of-concept installations ...
Mike Barnes +5 more
doaj +4 more sources
Multiport Hybrid HVDC Circuit Breaker [PDF]
IEEE Transactions on Industrial Electronics, 2018 This paper proposes a new $\boldsymbol {n}$ -port hybrid dc circuit breaker for offshore multiterminal HVDC grid application. The $\boldsymbol {n}$ -port dc circuit breaker can substitute $\boldsymbol {n-1}$ hybrid dc circuit breakers at a dc bus with $\boldsymbol {n-1}$ adjacent dc transmission lines.
Dirk Van Hertem +2 more
exaly +3 more sources
Optimal circuit breaker allocation strategy in DC transmission-connected systems [PDF]
Scientific ReportsThe purpose of this study is to provide data for the best possible circuit breaker allocation in power grids with HVDC transmission while taking circuit breaker failure into account. The lack of a suitable selection of HVDC circuit breakers is one of the
Beopsoo Kim, Insu Kim
doaj +3 more sources
Parametric Analysis of the Hybrid HVDC Circuit Breaker
International Journal of Electrical Power and Energy Systems, 2017 The hybrid circuit breaker design offers a fast low-loss operation that can be of paramount importance for the development of future meshed HVDC systems. This paper summarizes the main results obtained from a parametric analysis based on a simplified representation of both the circuit breaker and the test system.
Jesper Magnusson +1 more
exaly +3 more sources
A Self-commutated HVDC Circuit Breaker Based on Forced Zero Crossing Technology
Zhongguo dianli, 2021 In order to improve the breaking capacity of Hybrid DC circuit breaker and reduce the harm of DC short circuit fault to the system, we proposed a self-commutated HVDC circuit breaker based on forced zero crossing technology.
Guoqing LI +3 more
doaj +2 more sources
Controllable reactor based hybrid HVDC breaker [PDF]
High Voltage, 2020 Short circuit fault occurrence in high-voltage DC (HVDC) systems causes extremely high currents in a fast raising time that does not experience current zero-crossing.
Amir Heidary +4 more
doaj +2 more sources
A Low-Loss Integrated Circuit Breaker for HVDC Applications [PDF]
IEEE Transactions on Power Delivery, 2022 Hybrid dc circuit breakers (HCBs) are recognized as suitable devices for protecting high-voltage direct-current (HVDC) systems, along with other dc circuit breakers (DCCB). However, compared to mechanical circuit breakers, HCBs exhibit higher conduction losses. Such losses are inevitable under no-fault conditions as current may flow through some of the
Sheng Wang +3 more
openaire +3 more sources
Topology and control of a novel hybrid HVDC circuit breaker with self-powered capability
Energy Reports, 2022 Power supply for IGBT drive circuit of HVDC circuit breaker is a great challenge in practical engineering. At present, most of the HVDC circuit breakers rely on external power sources. This paper proposes a self-powered hybrid HVDC circuit breaker.
Huangqing Xiao +4 more
doaj +3 more sources
Circuit Breaker Failure Protection Strategy for HVDC Grids [PDF]
Energies, 2021 HVDC grids demand the fast and reliable operation of the protection system. The failure of any protection element should initialize a backup protection almost immediately in order to assure the system’s stability.
María José Pérez-Molina +3 more
doaj +2 more sources
Key stress extraction and equivalent test method for hybrid DC circuit breaker
Global Energy Interconnection, 2018 Firstly, relevant stress properties of millisecond level breaking process and microsecond level commutation process of hybrid HVDC circuit breaker are studied in detail on the basis of the analysis for the application environment and topological ...
Chong Gao +4 more
doaj +2 more sources