A Novel Solid-State Circuit Breaker for DC Microgrid System-Weilin Li, IEEE Member, Xuanlyu Wu, Yufeng Wang, Renyou Xie, Zhiyong Zhang, Heng Wang School of Automation, Department of Electrical Engineering The Key Laboratory of Aircraft Electric Propulsion Technology, Ministry of Industry and Information Technology of China

 A Novel Solid-State Circuit Breaker for DC Microgrid System-Weilin Li, IEEE Member, Xuanlyu Wu, Yufeng Wang, Renyou Xie, Zhiyong Zhang

Conference: 2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC) 

 Abstract—The development of the DC microgrid system has promoted the development of the DC circuit breaker. However, the traditional DC circuit breaker exists many problems such as long period of fault interruption, complex circuit structure, existing arc, low reliability and low anti-interference. Aiming to solve these problems, a novel solid-state DC circuit breaker was proposed in this paper. Firstly, this paper analyzes the working principle and process of the circuit in detail according to the results of the simulation based on Saber. Secondly, this paper gives the criteria on how to choose the parameters of the components correctly in the circuit. The concept of the maximum fault resistance according to the minimum fault current is also introduced. Moreover, this paper analyzes the influence of the minimum fault ramp rate on the circuit performance. Finally, experimental results verify that this novel solid-state circuit breaker is available.

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 https://www.researchgate.net/publication/330388450_A_Novel_Solid-State_Circuit_Breaker_for_DC_Microgrid_System