Bidirectional Series-Type DC Hybrid Circuit Breaker With Self-Restart Capability and Energy Regeneration

被引:0
|
作者
Liu, Zeng [1 ]
Deng, Zhiming [1 ]
Xiao, Shaodian [1 ]
Zhang, Chao [2 ]
Yang, Yachao [3 ]
Jiang, Yaqun [1 ]
Huang, Chun [1 ]
Wang, Jun [1 ]
Shen, Z. John [4 ]
机构
[1] Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Peoples R China
[2] Guizhou Univ, Coll Elect Engn, Guiyang 550025, Peoples R China
[3] Hunan Inst Engn, Coll Elect & Informat Engn, Xiangtan 411104, Peoples R China
[4] Simon Fraser Univ, Sch Mechatron Syst Engn, Burnaby, BC V5A 1S6, Canada
关键词
Voltage; Transformers; Capacitors; Fault currents; Circuit faults; Windings; Topology; Circuit breakers; Voltage control; Magnetic circuits; Bidirectional operation; energy regeneration (ER); self-restart capability; series-type hybrid circuit breaker (SHCB);
D O I
10.1109/TPEL.2024.3496993
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The series hybrid circuit breaker (SHCB) is a promising solution for fault current breaking in medium and low-voltage dc distribution networks, offering fast fault breaking and low conduction losses. However, the additional circuits or devices required for charging the energy storage (ES) capacitors complicate the restart operation of the SHCB, and the dissipation of large amounts of residual magnetizing current in the transformer results in energy wastage. To address these issues, this article proposes a bidirectional energy-regeneration SHCB (ER-SHCB), which recycles the transformer's residual magnetizing current to charge the ES capacitor, enabling self-restart. This approach simplifies and accelerates the restart operation while achieving ER. In addition, the voltage injection unit can generate a controllable-polarity counter voltage, allowing for bidirectional fault current breaking. To validate the effectiveness of the ER-SHCB, 10 kV/100 A simulations and scale-down experiments were conducted. Results show that the proposed ER-SHCB, featuring self-restart capability and ER, can quickly break the operating and fault currents.
引用
收藏
页码:4449 / 4460
页数:12
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