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Modified z-source DC circuit breaker topologies
2014 Clemson University Power Systems Conference, 2014The Z-source dc circuit breaker has been introduced as a new circuit for quickly and automatically switching off in response to faults. A modified Z-source breaker design is introduced for the operation at medium-voltage dc with future applications in naval ship power systems. Compared to existing designs, the respective design will allow for greater
Atif Maqsood +2 more
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Integrated Topology of Multi-Line DC Circuit Breaker and Power Flow Controller
IEEE Transactions on Power Delivery, 2022The reliability of meshed DC grids mainly relies on their ability in DC fault protection and line power flow managing. Multiple DC circuit breakers (DCCB) and current flow controller (CFC) need to be installed, which significantly increases the system ...
Jin Zhu +4 more
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Thyristor-Based Multiport Hybrid DC Circuit Breaker for Multiterminal DC Grid Protection
IEEE transactions on industrial electronics (1982. Print)Since the multiport hybrid dc circuit breaker (HCB) can share the expensive main breaker among multiple adjacent lines, it is considered as a more cost-efficient choice than typical HCB to isolate the dc-side fault in the large-scale multiterminal dc ...
Shuo Zhang +4 more
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A New Z-Source DC Circuit Breaker
IEEE Transactions on Power Electronics, 2010A novel type of circuit breaker is introduced for operation at medium-voltage dc with future naval ship power systems as a targeted application. The breaker utilizes a z-source LC circuit in order to automatically commutate a main-path SCR during a fault.
Keith A. Corzine, Robert W. Ashton
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Paralleled SiC MOSFETs DC Circuit Breaker with SiC MPS Diode as Avalanche Voltage Clamping
Applied Power Electronics Conference, 2022This paper proposes a solid-state DC circuit breaker composed of SiC MOSFETs and a SiC diode, based on the principle of avalanche voltage clamping. To realize a solid-state DC circuit breaker, it is necessary to reduce the conduction loss and increase ...
T. Takamori +3 more
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Improved Integrated Hybrid DC Circuit Breaker for MTDC Grid Protection
IEEE Transactions on Circuits and Systems - II - Express Briefs, 2022The current-limiting inductors are usually installed in the multi-terminal dc grid to limit the fault current rising speed. However, they will increase the energy dissipation pressure and fault isolation time of the dc circuit breaker, which puts forward
Shuo Zhang +4 more
semanticscholar +1 more source
A New Topological Structure of Z-Source DC Circuit Breaker
IEEE Transactions on Circuits and Systems - II - Express Briefs, 2022Aiming at the slow fault removal speed of traditional Z-source DC circuit breakers, this brief proposes a new Z-source DC circuit breaker topology to improve the speed of DC fault removal.
Tao Li, Yongli Li, Ningning Liu
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Shunt Compensation for DC Microgrid Stabilization Utilizing T-Type Modular Dc Circuit Breaker
Applied Power Electronics Conference, 2022Power electronics converters based loads in dc microgrids are often constant power loads (CPLs). They could destabilize the dc grid during voltage transients or load power changes due to their negative impedance characteristics. The newly proposed T-Type
Faisal Alsaif +7 more
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2014 Fifth International Conference on Intelligent Systems Design and Engineering Applications, 2014
Unlike ac systems, there is no zero crossing to extinguish the arc that occurs on breaker opening. With the rapid development of EHVDC, VSC-HVDC and DC distribution calling for the use of DC circuit breaker, more and more work has been done in recent years on this aspect.
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Unlike ac systems, there is no zero crossing to extinguish the arc that occurs on breaker opening. With the rapid development of EHVDC, VSC-HVDC and DC distribution calling for the use of DC circuit breaker, more and more work has been done in recent years on this aspect.
openaire +1 more source
IEEE transactions on industry applications, 2022
Global electricity generation by renewable energy sources and the electrification of the transportation system are gaining more importance to mitigate climate change. The dc system plays a significant role in these developments. To protect dc systems, dc
Venkata Raghavendra I +3 more
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Global electricity generation by renewable energy sources and the electrification of the transportation system are gaining more importance to mitigate climate change. The dc system plays a significant role in these developments. To protect dc systems, dc
Venkata Raghavendra I +3 more
semanticscholar +1 more source