Affiliations: [a] School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang, China | [b] School of Electrical Engineering, Yanshan University, Qinhuangdao, China
Correspondence:
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Corresponding authors: Zheng Li, School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China; and School of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China. E-mail: lizheng@hebust.edu.cn. Hexu Sun, School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China. E-mail: sunhxhb@outlook.com
Abstract: The Deflectable double-stator Switched Reluctance Generator (DSRG) has the advantages of simple structure, small volume and multi-dimensional operation. The DSRG and propeller are combined into the application of underwater power generation. With the help of the deflect ability of the generator, the efficiency is improved. Due to the uncertainty of ocean current direction and the structure of switched reluctance generator, the torque ripple is one of the important factors damaging the underwater generator. In order to effectively suppress the influence of torque ripple caused by generator operation, a method of adding pole shoes on the pole side of outer stator is proposed, so as to reduce the torque ripple. The propulsion structure running at different deflection angles is simulated. The torque and speed obtained before and after pole shoe optimization are input into the propeller model. The pressure and speed characteristics of the corresponding blade structure are simulated to verify the effect of optimization and the effectiveness of the power generation system.
