Results 191 to 200 of about 10,346 (264)
Some of the next articles are maybe not open access.
European Conference on Cognitive Ergonomics
Medium voltage dc (MVdc) power systems offer significant advantages for electric ships with increasing power demands. However, managing short-circuit faults remains a challenge.
Qichen Yang +3 more
semanticscholar +1 more source
Medium voltage dc (MVdc) power systems offer significant advantages for electric ships with increasing power demands. However, managing short-circuit faults remains a challenge.
Qichen Yang +3 more
semanticscholar +1 more source
Hybrid DC Circuit Breaker Feasibility Study
IEEE Transactions on Components, Packaging and Manufacturing Technology, 2017Recently, a growing number of dc systems exist based on the development of electrical energy consumption. For low-voltage dc grids, switching devices are needed that have to meet technically sophisticated requirements. These devices have to handle fault currents of several hundred amperes and system voltages up to 1000 V.
Dirk Bösche +3 more
openaire +1 more source
A Novel Integrated Hybrid DC Circuit Breaker with Controlled Oscillation for Zero-Crossing
2025 IEEE 3rd International Conference on Power Science and Technology (ICPST)The zero-crossing scheme with low loss and high reliability has gradually become the key to the successful fault removal of DC circuit breakers. However, existing solutions either achieve reliable zero-crossing at the cost of higher losses or create a ...
Rui Liu +5 more
semanticscholar +1 more source
2025 IEEE Kiel PowerTech
The integration of DC circuit breakers (DC CBs) and DC reactors (DCRs) is essential for protecting multiterminal voltage source converter high voltage direct current (MT-VSC-HVDC) systems and limiting both the magnitude and rate of rise of fault current.
Seyed Saeid Heidari Yazdi +6 more
semanticscholar +1 more source
The integration of DC circuit breakers (DC CBs) and DC reactors (DCRs) is essential for protecting multiterminal voltage source converter high voltage direct current (MT-VSC-HVDC) systems and limiting both the magnitude and rate of rise of fault current.
Seyed Saeid Heidari Yazdi +6 more
semanticscholar +1 more source
A Hybrid DC Circuit Breaker Based on Arrester Transient Voltage-Assisted Interruption
2025 8th International Conference on Energy, Electrical and Power Engineering (CEEPE)The Hybrid DC Circuit Breaker (HDCB) serves as a critical equipment for DC fault interruption within VSC-based DC grid. Nevertheless, existing HDCBs face challenges such as slow commutation speed and high loss in the electronic devices of the main branch.
Yangfan Chen, Jihao Li, Xiangyu Pei
semanticscholar +1 more source
A novel hybrid DC circuit breaker for nodes in multi-terminal DC system
IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017DC fault protection is one of the biggest challenge to multi-terminal direct current (MTDC) systems, because DC current has no natural zero crossing point. To overcome this problem, hybrid DC circuit breaker (DCCB), which serves as a promising solution to the isolation of DC faults, has been developed.
Tianyu Wei +6 more
openaire +1 more source
A Novel Topology of Hybrid DC Circuit Breaker with High Current Breaking Capacity
International Conference on Electrical Machines and SystemsWith the large-scale integration of renewable energy sources into the power grid, power disturbances and impacts in the power system have increased significantly. Hydropower units are required to suppress such fluctuations through frequent regulation. To
Yuantai Li +4 more
semanticscholar +1 more source
IEEE transactions on power electronics, 2023
Insufficient current capability is the most serious problem faced by power electronic devices in hybrid dc circuit breaker (HCB), where the junction temperature rise is the main restriction. This letter proposes a novel performance enhancement method for
Xiangyu Zhang, Liangtao Zhan, Lei Qi
semanticscholar +1 more source
Insufficient current capability is the most serious problem faced by power electronic devices in hybrid dc circuit breaker (HCB), where the junction temperature rise is the main restriction. This letter proposes a novel performance enhancement method for
Xiangyu Zhang, Liangtao Zhan, Lei Qi
semanticscholar +1 more source
Design and Optimization for IGBT On-state Voltage Monitoring Circuit in Hybrid DC Circuit Breaker
2025 IEEE 3rd International Conference on Power Science and Technology (ICPST)The high-power press-pack insulated gate bipolar transistor (IGBT) is widely used in flexible direct current (DC) transmission system equipment, such as converter valves and DC circuit breakers.
Litong Wang +5 more
semanticscholar +1 more source
A Novel Hybrid DC Circuit Breaker with Reverse-Biased Voltage Source for MVDC
European Conference on Cognitive Ergonomics, 2023DC circuit breakers are essential building blocks for the protections in the DC network systems. The hybrid circuit breaker combines the merits of the solid-state circuit breakers and mechanical switches, featuring higher efficiency and fast speed ...
Yuchen He, Yuan Li, Fang Peng
semanticscholar +1 more source