Results 31 to 40 of about 136,323 (351)

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

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

DC vacuum circuit breaker

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, Magnus Backman, Lars Jonsson, Marco Riva, Edgar Dullni   +4 more
openaire   +1 more source

Cascaded commutation circuit for a hybrid DC breaker with dynamic control on fault current and DC breaker voltage [PDF]

, 2017
This paper proposed a cascaded commutation circuit based on current commutation approach for low-to-medium voltage DC fault current interruption, without snubber circuits, which slows the fault current di/dt prior to current-zero and the rate of rise of ...
Ding, Xiao, Finney, Stephen J., Guang, Weixiao, Holliday, Derrick, Lim, Tee C., Shan, Yunhai, Williams, Barry W.   +6 more
core   +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, Cortés González, Jorge, Benchaib, Abdelkrim, Alou Cervera, Pedro, Damm, Gilney, Cobos Márquez, José Antonio, Lamnabhi-Lagarrigue, Françoise   +6 more
openaire   +2 more sources

An Improved Hybrid DC Circuit Breaker With Self-Adaptive Fault Current Limiting Capability

IEEE transactions on power electronics, 2022
The effective fault current limiting is very significant for the dc distribution system. However, the traditional dc fault current limiting method, i.e., directly installing dc reactor, may trigger negative impacts the system normal operation and fast ...
Huijie Lyu, Jiawei He, Bin Li, Ye Li, Daniel Westerman Spier, E. Prieto‐Araujo, O. Gomis‐Bellmunt   +6 more
semanticscholar   +1 more source

A hybrid circuit breaker based on current commutation approach for multi-feeder DC railway substations

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, Yi Lu, Xiaoming Huang, Chengyu Lu, Peng Qiu, Chao Ding   +5 more
doaj   +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, Bicheng Liu, Xiaowei Huang, Zexiang Cai, Yongjun Zhang   +4 more
doaj   +1 more source

Determination of protection system requirements for DC UAV electrical power networks for enhanced capability and survivability [PDF]

, 2011
A growing number of designs of future Unmanned Aerial Vehicle (UAV) applications utilise dc for the primary power distribution method. Such systems typically employ large numbers of power electronic converters as interfaces for novel loads and generators.
Burt, Graeme, Fletcher, Steven, Galloway, Stuart, Norman, Patrick   +3 more
core   +1 more source