Linear generator for surf power generation

Abstract

The linear dynamo used in wave power generation relates to a permanent magnetic linear synchronous motor, which comprises a primary pole and a secondary pole. The primary pole of the permanent magnetic linear synchronous motor comprises two primary iron cores (2), a primary tri-phase winding (3). The primary tri-phase winding (3) is bedded in the wire ducts of the primary iron cores (2). The secondary pole comprises a secondary permanent magnet (1) which is arranged on a buoy (6) by a spring (5). The bottom of the container which contains the linear dynamo is fixed on the seabed. Both the primary pole and the secondary pole of the linear dynamo are in rectangle shape. The secondary permanent magnet (1) is positioned between the two primary iron cores (2). And air gaps (4) are provided between the secondary permanent magnet (1) and the two primary iron cores (2). The invention uses the linear dynamo instead of traditional rotating dynamo, with non-contact driving, reduces the dielectric loss and increases the electricity generation efficiency; sustains the pressure of wave, with strong structure; has the advantages of no poisonous gas released, no extra noise, environment-protection and health, with the cost as low as common electricity generation.

Description

technical field [0001] The invention relates to a permanent magnet linear synchronous motor, in particular to a permanent magnet linear synchronous generator used for ocean wave power generation. The invention belongs to the field of motors. Background technique [0002] Ocean waves are an important renewable energy source. According to estimates by the World Energy Association, the reserves of ocean wave resources worldwide are as high as 2TW or more, which is equivalent to the sum of all other forms of energy in the world. If 0.1% of them are converted into electrical energy , which will exceed 5 times the current world electricity consumption. In the 1970s, due to the oil crisis, people began to study marine renewable energy such as waves and tides, and deeply explored the mechanism and feasibility of using wave power to generate electricity. Over the past 30 years, scientists from various countries have worked hard to explore several ways of generating electricity from ...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the transmission mechanism is used, which reduces the efficiency of wave power generation and increases the cost

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