Direct drive type wave power generation system utilizing superconducting coils

Abstract

The invention discloses a direct drive type wave power generation system utilizing superconducting coils. The direct drive type wave power generation system comprises a floating support, a middle shaft structure, sea wave buoys, an excitation part / excitation parts and induction parts / an induction part, wherein a base of the middle shaft structure is fixed to the seabed; the upper end of the middle shaft structure is connected with the floating support by resetting devices; the sea wave buoys are arranged on the outer side of the floating support; the floating support is provided with the excitation parts, and the middle shaft structure is provided with the induction part; or the floating support is provided with the induction parts, and the middle shaft structure is provided with the excitation part; and at least one of the excitation parts and the induction parts is provided with a plurality of superconducting coils and a corresponding refrigeration system. The sea wave buoys drive the floating support under the effect of sea waves to move relative to the middle shaft structure, so that the excitation parts and the induction parts relatively move, and electric energy is generated by electromagnetic induction. The invention has the advantages that second-level energy conversion is not needed, so that the energy loss is reduced; the cost and the complexity of the whole system are reduced; and the reliability of the system is effectively improved.

Description

technical field [0001] The invention belongs to the field of ocean wave power generation, in particular to a direct-drive ocean wave power generation system using superconducting coils. Background technique [0002] In marine energy, the huge energy of wave fluctuation is an important part of it. It is estimated that the power of wave energy continuously dissipated along the coastlines of the world is as high as 10 6 MW level, but the application proportion of these energies is very small. Wave energy is the cleanest renewable resource. Its development and utilization will greatly alleviate the crisis caused by the gradual depletion of fossil energy and improve the damage to the environment caused by burning fossil energy. As one of the main trends of new energy power generation, wave power generation has been paid more and more attention by people. [0003] At present, the more commonly used wave energy conversion devices generally include air type, hydraulic type, gear ...

AI Technical Summary

Problems solved by technology

[0005] However, since superconducting coils must require a refrigeration system, it is very difficult to design and maintain a refrigeration system on a superconducting rotating electrical machine, which greatly limits the application and development of superconducting rotating electrical machines in the field of ocean power generation.

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