Results 11 to 20 of about 624 (193)
Research and experiment of a current-limiting HVDC circuit breaker
The Journal of Engineering, 2019 Existing mechanical HVDC circuit breakers (CB) are capable of interrupting HVDC currents within several tens of milliseconds, but this is too slow to satisfy the requirements of a reliable HVDC grid.
Yi Du +5 more
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A control method of fault current in MT-HVDC grid based on current limiter and circuit breaker [PDF]
Archives of Electrical Engineering, 2021 In order to realize selective isolation of fault lines in multi-terminal high voltage DC (MT-HVDC) grids, it is necessary to ensure that the sound lines can still transmit power normally after the grounding fault occurs in a DC power network.
Sihua Wang, Lei Zhao, Lijun Zhou
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
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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
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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
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
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A Review on HVDC Circuit Breakers [PDF]
International Journal of Trend in Scientific Research and Development, 2019 he continuously increasing demand for electric control and the financial access to remote sustainable power source sources, for example, seaward wind control or sunlight based warm age in deserts have restored the enthusiasm for high voltage direct present HVDC multi terminal frameworks systems .
Om Prakash Regar +2 more
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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
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DC protection for a multi-terminal HVDC network including offshore wind power, featuring a reduced DC circuit breaker count [PDF]
The Journal of Engineering, 2019 Large offshore wind farms located far from shore, as are being planned or built in the North Sea, will require high-voltage DC (HVDC) transmission to shore, and multi-terminal HVDC could offer further benefits.
Max A. Parker +3 more
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Environmental Compatible Circuit Breaker Technologies [PDF]
, 2021 Recent research and development in the field of high-current circuit breaker technology are devoted to meeting two challenges: the environmental compatibility and new demands on electrical grids caused by the increasing use of renewable energies ...
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