Parameter Optimization Design of the Commutation Circuit of a Hybrid DC-Current-Limiting Circuit Breaker

Zhiyong Lv, Jinwu Zhuang, Jin Wu, Luhui Liu, Zhifang Yuan, Zhuangxian Jiang and Xiangjun Wang ()
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Zhiyong Lv: College of Electrical Engineering, Navy University of Engineering, Wuhan 430030, China
Jinwu Zhuang: College of Electrical Engineering, Navy University of Engineering, Wuhan 430030, China
Jin Wu: College of Electrical Engineering, Navy University of Engineering, Wuhan 430030, China
Luhui Liu: College of Electrical Engineering, Navy University of Engineering, Wuhan 430030, China
Zhifang Yuan: College of Electrical Engineering, Navy University of Engineering, Wuhan 430030, China
Zhuangxian Jiang: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
Xiangjun Wang: College of Electrical Engineering, Navy University of Engineering, Wuhan 430030, China

Energies, 2023, vol. 16, issue 22, 1-19

Abstract: Aimed at the optimization design of the parameters of the commutation circuit of a hybrid DC-current-limiting circuit breaker (HDCCLCB), a parameter selection model considering the short-time withstand of the thyristor and the volume of the commutation circuit is proposed by simplifying the object, and the commutation circuit parameters were preliminarily obtained. In order to verify the correctness of the method of selecting the commutation circuit parameters, the circuit simulation model of the HDCCLCB was built. The experimental platform was built, and the breaking experiment was completed under the fault condition with the current rising rate of 20 A/μs. The correctness of the simulation model and parameter design method was verified by comparing the circuit model simulation results with the experimental results. In order to further optimize the parameters of the commutation circuit, a mathematical model for optimization design was established. Taking the maximum critical breakdown voltage under unit capacitance energy as the objective function, the arcing time before commutating and the current-limiting inductance and capacitance are enumerated to obtain the optimized commutation circuit parameters. By comparing this result with the result of the preliminary design, the objective function is improved by 20.7%, laying a solid foundation for further research and the development of current-limiting circuit breakers for medium-voltage DC systems.

Keywords: HDCCLCB; commutation circuit; optimization design (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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