Hubei Provincial Key Laboratory for Operation and Control of Cascaded Hydropower Station, College of Electrical Engineering and New Energy, China Three Gorges University, Yichang, China
Hubei Provincial Key Laboratory for Operation and Control of Cascaded Hydropower Station, College of Electrical Engineering and New Energy, China Three Gorges University, Yichang, China
Can Ding
Hubei Provincial Key Laboratory for Operation and Control of Cascaded Hydropower Station, College of Electrical Engineering and New Energy, China Three Gorges University, Yichang, China
Shihong Qin
School of Electrical Engineering and Information, Wuhan Institute of Technology, Wuhan, China
Li Huang
Hubei Provincial Key Laboratory for Operation and Control of Cascaded Hydropower Station, College of Electrical Engineering and New Energy, China Three Gorges University, Yichang, China
Zhao Yuan
State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, China
In this paper, in accordance with the breaker requirements of a parallel-type circuit breaker based on a high-coupling split reactor, the structure of a coupling reactor is proposed, and the influences of the inner radius, encapsulation height, air ducts width, and encapsulation number of the reactor on coupling factor is analyzed. The reactor design is optimized to minimize metal conductor usage, and the initial design parameters of the coupling reactor are selected based on equal height and heat flux of the coaxial encapsulations. Meanwhile, combined thermal and electromagnetic optimization method and heat load optimization are adopted considering a single-arm limiting current and two-arm flow current working conditions. The optimization results show that the metal conductor usage of the coupling reactor is only 63% compared to a design based on the initial design parameters, and the correctness of the optimization is verified by simulation results.
