Results 231 to 240 of about 84,074 (283)

Investigation of a Mechanical Switch within a Hybrid Circuit Breaker for Protection in DC Grids

2020 IEEE 66th Holm Conference on Electrical Contacts and Intensive Course (HLM), 2020
Transmission and distribution of electrical energy has been achieved by using alternating current (AC) almost exclusively until now. Direct current (DC) pushes forward into long range energy transmission, server farms, mobility and manufacturing systems,
L. Claassen, Frederik Anspach, Ernst-Dieter Wilkening, M. Kurrat   +3 more
semanticscholar   +1 more source

An Ultra-Efficient DC Hybrid Circuit Breaker Architecture Based on Transient Commutation Current Injection

Applied Power Electronics Conference, 2020
Safety and protection against circuit faults represent a major technical challenge in emerging DC transmission and distribution power networks. This paper proposes a new DC hybrid circuit breaker (HCB) architecture that relies on a switching-mode ...
Yuanfeng Zhou, Yanjun Feng, Nikolay Shatalov, Risha Na, Z. Shen   +4 more
semanticscholar   +1 more source

New network concepts using electronic hybrid circuit breakers

2008 IEEE/PES Transmission and Distribution Conference and Exposition, 2008
The electrical power industry forecasts a significant increase in demand of electrical power around the world during the next years. Old distribution and transmission systems are not designed for the load that will be expected only a few years from now.
J. P. Dupraz, G. F. Montillet
openaire   +1 more source

A Snubberless Hybrid Circuit Breaker for Medium Voltage DC grids

2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia), 2020
This paper presents a hybrid circuit breaker (HCB) which is suitable for fast fault interruption in medium voltage dc (MVDC) systems. Proposed topology employs an actively switched capacitor branch in parallel with the main conduction branch to ...
Raghavendra I Venkata, Anindya Ray, N. Satish   +2 more
semanticscholar   +1 more source

Arc-less commutation in hybrid DC circuit breaker

2016 IEEE International Conference on Plasma Science (ICOPS), 2016
DC circuit breaker (DCCB) has been intensively studied due to increasing demand in DC power transmission, such as mega solar power plants and large wind farms. A hybrid DC circuit breaker which consists of electrical contacts, semiconductor devices and a metal-oxide element (varistor) is a promising device to provide a small contact resistance and a ...
Koichi Yasuoka, Kei Ikeda, Yoshiki Tsuboi, Tatsuya Hayakawa, Nozomi Takeuchi   +4 more
openaire   +1 more source

Parameter Designing of the DC Hybrid Circuit Breaker

2014 Fifth International Conference on Intelligent Systems Design and Engineering Applications, 2014
This paper introduces the parameter designing of the DC hybrid circuit breaker (CB). In the CB, the current limiting circuit is designed to inhibit the increasing of fault current, the combinatorial electronic power switch is designed to reduce the series connecting number of power electronic device.
Chen Ke, Jiang Daozhuo, Du Yi, Fan Yu, Zhou Yang   +4 more
openaire   +1 more source

Intelligent circuit breaker using thermoelectric hybrid overload protection

2017 20th International Conference on Electrical Machines and Systems (ICEMS), 2017
A three-dimensional finite element model of miniature circuit breaker is established. The steady state temperature field is obtained by the method of electrothermal coupling, and the mechanism of overload protection is analyzed. The influence of wire size on the temperature of bimetal is studied. A simple and effective method to reduce the influence of
Sen Lv, Ming Zong
openaire   +1 more source

An Integrated Multi-port Hybrid DC Circuit Breaker

2019 IEEE 8th International Conference on Advanced Power System Automation and Protection (APAP), 2019
A massive number of hybrid DC circuit breakers (HCBs) have to be installed to protect a voltage source converter based multi-terminal DC (MTDC) system, leading to quite high costs. To reduce the implementation cost employing HCB in DC systems, this paper presents an integrated multi-port hybrid DC circuit breaker (IMP-HCB), which consists of an ...
Jinghan He, Yiping Luo, Meng Li, Guomin Luo, Liu Han, Teng Feng   +5 more
openaire   +1 more source

Integration of Proactive Hybrid Circuit Breaker with Current Flow Controller for Bipolar HVDC Grid

2019 International Conference on Power Electronics Applications and Technology in Present Energy Scenario (PETPES), 2019
A Voltage Source Converter based High Voltage Direct Current (VSC-HVDC) are the most efficient and reliable method for electrical power transmission and implementation of HVDC grids over long distances.
Akshay K. Kale, Mohan P. Thakre
semanticscholar   +1 more source

Power Module for Low Voltage DC Hybrid Circuit Breaker

IEEE International Conference on DC Microgrids, 2019
This paper presents design and development of a power module used in a low voltage DC hybrid circuit breaker (HCB). The novel power module is rated for 125 A / 380 V and can interrupt electrical faults within approximately $300\ {\mu}\mathrm{s}$ in a ...
Kenan Askan, M. Bartonek, Katharina Weichselbaum   +2 more
semanticscholar   +1 more source