Results 201 to 210 of about 10,346 (264)

Development of a Thyristor-Assisted Hybrid DC Circuit Breaker for Reduced Cost and Size

IEEE transactions on power electronics, 2023
The hybrid dc circuit breaker (HCB) is an important piece of equipment for clearing dc faults and maintaining the safe operation of dc grids. The current transition from a mechanical switch to a power electronic switch has always been a crucial issue in ...
X. Zhang, Tianpei Shan, Junyu Luo, Yu Zhang, Ting Zhan, Lei Qi   +5 more
semanticscholar   +1 more source

Zero volt switching hybrid DC circuit breakers

Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129), 2002
DC distribution networks have the advantage of easy connection of generators of different frequency, fuel cells, and storage devices like batteries and flywheels to a grid and the advantage of a lower current load of the cables. Despite these advantages, often an AC distribution network is chosen because of the lack of reliable DC switchgear.
P. van Gelder, J.A. Ferreira
openaire   +1 more source

A Nonlinear Inductor-Based Fault Current Commutation Strategy to Enable Zero-Current Opening of the Mechanical Switch in a Hybrid DC Circuit Breaker

Electric Ship Technologies Symposium, 2023
Medium voltage dc (MVdc) power system is a promising solution to provide high power dense, agile, and robust power distribution systems that are necessary for all-electric naval ships with increasing power and energy demands.
Qichen Yang, M. Steurer, Yanjun Shi, Sihun Song, Nash Bonaventura, Yuchen He, J. Hauer, M. Bosworth, L. Graber   +8 more
semanticscholar   +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

Hybrid DC Molded Case Circuit Breaker Technology

2020 IEEE 66th Holm Conference on Electrical Contacts and Intensive Course (HLM), 2020
The demand for DC circuit protection products continues to grow as industry sectors such as electrical vehicles, energy storage and data centers further expand. It drives the need for cost effective and compact DC circuit protection devices with higher short circuit interruption ratings. This paper presents a novel hybrid DC molded case circuit breaker
Xin Zhou, Yanjun Feng, Z. John Shen, Slobodan Krstic   +3 more
openaire   +1 more source

Development of a new topology of dc hybrid circuit breaker

2013 2nd International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST), 2013
A new topology of dc hybrid circuit breaker based on fast switch and liquid metal fault current limiters(LMFCL) is proposed for medium voltage dc system in this paper. The voltage generated by LMFCL can commutate the fault current into the parallel thyristors and make arcless open of fast switch contacts.
null Yifei Wu, null Mingzhe Rong, null Yi Wu, null Fei Yang, null Mei Li, null Yang Li   +5 more
openaire   +1 more source

Experimental Study on Current Transfer of Hybrid DC Circuit Breaker Based on Reverse Blocking Diode Thyristor

2025 Zhejiang Power Electronics Conference (ZPEC)
Hybrid DC circuit breakers have been widely applied in high-voltage power systems. The performance of semiconductor devices plays a critical role in ensuring their reliable operation.
Zhiwen Li, Lin Liang, Zhengheng Qing, Tong Liu, Zhongqi Guo, Kaijun Wen   +5 more
semanticscholar   +1 more source

Modular Hybrid DC Circuit Breaker for Medium-Voltage DC System

2020 IEEE Energy Conversion Congress and Exposition (ECCE), 2020
This paper proposes a new modular hybrid DC Circuit Breaker (DCCB) for Medium-Voltage DC (MVDC) grid system. The proposed DCCB has mechanical switch which is composed of Vacuum Interrupter (VI) and Permanent Magnetic Actuator (PMA). And commutation path which is composed of two IGBTs and diodes is connected to the VI in parallel.
Dong-Uk Kim, Sungmin Kim
openaire   +1 more source

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, Guibin Zou, Feng Gao, Dashan Shi, Xiuyan Wei   +4 more
semanticscholar   +1 more source

Fault isolation characteristics of the hybrid DC circuit breaker

2017 IEEE Conference on Energy Internet and Energy System Integration (EI2), 2017
The topologies and operation principles of the hybrid Direct Current Circuit Breaker (DCCB) are present in this paper. The equivalent circuits of the hybrid DCCB in different period of the current breaking process are obtained. Then the fault current path of DC double pole short-circuit fault, monopole grounding fault, single phase to ground fault and ...
Bingjian Yang, Zhiyuan He, Haoyu Ma, Huafeng Wang, Yi Lu, Peng Qiu, Pengxiang Huang   +6 more
openaire   +1 more source