Results 21 to 30 of about 868 (261)
Capacitor Commutation Method for MVDC Hybrid Circuit Breakers
Designs, 2021 The medium voltage DC (MVDC) type system can connect multiple terminals to a common MVDC bus, so it is possible to connect several renewable DC power sources to the common MVDC bus, but a DC circuit breaker is needed to isolate short circuit accidents ...
Hyosung Kim
doaj +1 more source
Current Limiting Hybrid High Voltage DC Circuit Breaker With Reclosing Function Limiting
Journal of Applied Science and Engineering, 2022 DC circuit breaker is the core equipment for the safe operation of DC transmission system. A current limiting hybrid HVDC circuit breaker topology with reclosing function is proposed in this paper.
Baoge Zhang +4 more
doaj +1 more source
Gate Drive Controller for Low Voltage DC Hybrid Circuit Breaker
Energies, 2021 With the advent of direct current (DC) loads such as LED lighting, IT equipment, electric vehicles, and DC powers generated from renewable energy sources, low voltage DC (LVDC) distribution system is becoming a hot issue.
Hyosung Kim
doaj +1 more source
CSEE Journal of Power and Energy Systems, 2019 The paper presents an economic hybrid circuit breaker for limiting and interrupting the faults in DC railways substations. For fast fault current interruption, the hybrid breaker incorporates high speed mechanical contacts actuated by power semiconductor
Saady Hasan
doaj +1 more source
Research on DC power flow controllable multi-port DC circuit breaker
Energy Reports, 2022 For the problem of fault isolation and power flow control in DC grid, this paper proposes a DC power flow controllable multi-port DC circuit breaker. Under the normal operation, this breaker has the function of DC power flow regulation, which is used to ...
Feng Xu +5 more
doaj +1 more source
CIRED - Open Access Proceedings Journal, 2017 In the last years the progressive increase of distributed and non-programmable energy sources arise the interest in the use of DC for medium-voltage distribution systems. The study focuses on the design considerations of the apparatus required to support the management and protection of these applications.
Lars Liljestrand +4 more
openaire +1 more source
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 +1 more source
DC / DC converters as DC circuit-breakers in HVDC networks operation [PDF]
2014 16th European Conference on Power Electronics and Applications, 2014 This paper presents the modeling and control of a DC/DC bidirectional converter suitable for medium voltage and power applications in Multi-Terminals HVDC (MT-HVDC) grids. Moreover its use as DC circuit-breaker is described. This is a new concept, against the contemporary studies of DC breakers, which could help for the implementation of MT-HVDC ...
Jiménez Carrizosa, Miguel +6 more
openaire +2 more sources
Anti-strong Magnetic Interference Technology of Intelligent Miniature Circuit Breaker
Zhongguo dianli, 2020 Aiming at the problem that the intelligent micro-circuit breaker is prone to misoperation and miss trip under strong magnetic interference, the intelligent micro-circuit breaker control system, DC motor, switching power supply and other related modules ...
Dezhi XIONG +5 more
doaj +1 more source
Research on topological structure and simulation of hybrid DC circuit breaker
The Journal of Engineering, 2019 At present, the hybrid DC circuit breaker (ABB company's Hybrid DC circuit breaker as the representative scheme) must be equipped with the radiator because of a long-time current passing through the power electronic devices in the load-control-switch ...
Chu Zhuang +3 more
doaj +1 more source