Compact Low-Velocity Ocean Current Energy Harvester Using Magnetic Couplings for Long-Term Scientific Seafloor Observation

被引：6

作者：

Huang, Longxiang ^{[1
,2
,3
]}

Lyu, Feng ^{[1
,2
,3
]}

机构：

[1] Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China

[2] Tongji Univ, Sch Ocean & Earth Sci, Shanghai 200092, Peoples R China

[3] Tongji Univ, Ctr Marine Sci & Technol, Shanghai 200092, Peoples R China

来源：

JOURNAL OF MARINE SCIENCE AND ENGINEERING | 2020年 / 8卷 / 06期

基金：

中国国家自然科学基金;

关键词：

energy harvester; low-velocity ocean current; magnetic couplings; scientific seafloor observation; three-dimension finite-element method; MARINE CURRENT TURBINE; POWER-GENERATION; TECHNOLOGIES; SYSTEMS; FUTURE; DESIGN;

D O I：

10.3390/jmse8060410

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

A compact low-velocity ocean current energy harvester (LOCH) is developed to power undersea instrument platforms for long-term scientific seafloor observation. Noncontact magnetic couplings are used in the LOCH to eliminate friction and achieve reliable underwater sealing so that the LOCH can adapt the low-velocity ocean current and its energy transmission efficiency can be improved. The parameters of the magnetic couplings are optimized by the three-dimensional finite-element method (3D FEM). A laboratory experiment platform is designed; and the static and dynamic performances of the magnetic couplings with different parameters are tested. The experiment results are compared with computer simulations to verify the optimal parameter design. Finally; a prototype of the LOCH is designed and its underwater experiment proves that it can start smoothly and work stably at a current velocity of as low as 0.4 m/s

引用

页数：18

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