Sea wave linear motor driven by magnetic gear

Abstract

The invention relates to a sea wave linear motor which is driven by a magnetic gear, comprising two structures which are both formed by a cylinder type permanent magnet synchronous linear motor and a cylinder type linear magnetic gear. The permanent magnet synchronous linear motor comprises a motor primary and a motor secondary, wherein, the motor primary comprises a primary iron core (1) and a primary winding (2); the primary iron core (1) is fixed at the bottom of the sea; the primary winding is embedded in a wire casing of the primary iron core; the motor secondary comprises a permanent magnet (3); the magnetic gear comprises a high speed side (3), a middle adjusting magnet ring (4), a low speed side (5) and an iron core (6); the magnetic gear high speed side is permanent magnet synchronous linear motor secondary (3); the adjusting magnet ring (4) in the middle part is fixed at the bottom of the sea; the magnetic gear low speed side comprises a permanent magnet (5) and an iron core(6) which are connected with a buoy (8) floating on the sea surface (9); an air gap (10) is arranged between the linear motor primary (1) and the linear motor secondary (3); an air gap (11) is arranged between the linear motor secondary (3) and the magnetic gear adjusting magnet ring (4); and an air gap (12) is arranged between the adjusting magnet ring (4) and the magnetic gear low speed side.

Description

technical field [0001] The invention relates to an ocean wave linear generator driven by a magnetic gear, in particular to a cylindrical permanent magnet linear synchronous generator applied to ocean wave power generation. The invention relates to the fields of electrician and motor. Background technique [0002] The global population continues to expand, and energy and environmental problems are becoming more and more serious. People have to find new energy sources to solve the current crisis. The ocean area accounts for about 70% of the global surface area, and ocean energy is one of the most abundant energy reserves on the earth. Ocean energy refers to the renewable energy attached to seawater, which stores and exchanges energy through various forms such as tides and waves. After nearly 40 years of research, scholars at home and abroad have proposed a variety of wave power generation methods, but most of them use various mechanical devices to convert the reciprocating li...

AI Technical Summary

Problems solved by technology

However, regardless of whether a rotary motor or a linear motor is used, due to the slow motion of the waves, the volume and mass of the generator are generally large, and the manufacturing cost is relatively high. Reduced system efficiency, need for regular maintenance, etc.

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