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Wave power generator

A wave power generation and wave technology, applied in ocean energy power generation, engine components, engine control, etc., can solve problems such as small kinetic energy, power generation methods that cannot be applied to large power generation methods, and size limitations, etc., to achieve simple structure, Low cost, high safety effect

Inactive Publication Date: 2006-11-29
SUMITOMO ELECTRIC IND LTD
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  • Abstract
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Problems solved by technology

[0009] However, the portable generator with the above-mentioned structure is intended to be portable, and the weight of the magnet as a weight is light. Due to the structure inserted into the cylindrical coil, the size is limited, and the magnet cannot be enlarged. , so the kinetic energy is small, although the resonance phenomenon of the weight-spring is used, the power generation method cannot be applied to the power generation method with a large amount of power generation

Method used

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Embodiment Construction

[0027] Embodiments of the present invention will be described below with reference to the drawings. figure 1 It is a main sectional view of the wave power generator of an Example. 1 is a floating body, as a structure of a floating body with sufficient buoyancy that will not sink even if the power generation device described later is mounted, it can be used as a self-propelled and movable hull itself, or can be fixedly installed on the hull or in the hull. The platen or the box together as a whole as a floating body. In the illustrated embodiment, only a box-shaped section is schematically shown. The surrounding wall 2 is used on the floating body 1 H ,2 V The power generation unit is installed in the completely airtight enclosed room. However, in the case of installation inside the hull, it is not necessary to be completely sealed, as long as it is not immersed in water.

[0028] As shown in the figure, the power generation unit supports a heavy object (weight) 3 on the f...

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Abstract

A wave power generator enables high-efficiency conversion of wave energy into electric energy. The structure of the wave power generator is simple, thereby lowering the construction cost, and enabling supply of a large amount of power at low cost. The wave power generator has a structure wherein an air spring (4) of an elastic member supports elastically a heavy body (3) in a surrounding wall (2) on a floating body (1), and a power generating means (7) with an electromagnetic damper is installed between the heavy load (3) and the floating body (1). The spring constant of the air spring (4) is adjusted by means of auxiliary tanks preinstalled in a piston (6) and in the floating body (1) so that the undamped natural frequency of the air spring approaches the wave frequency within a predetermined range of the ratio omega / omega0 of the frequencies or agrees with the wave frequency. When the spring system vibration is made to resonate to the wave, the relative movement of the power generating means (7) becomes maximum. Thus, the power generation efficiency is improved to the full extent.

Description

technical field [0001] The invention relates to a wave power generation device for efficiently converting wave energy on a wave surface into electric energy. Background technique [0002] Various studies on wave power generation using wave energy for power generation have been carried out. According to Non-Patent Document 1, the wave power generation method is used as a primary conversion mechanism, and a wave power generation method belonging to any of the following conversion methods has been tried by an experimental device: 1 ) into air energy, 2) into mechanical energy, and 3) into water potential energy or water flow energy. As an example of the above-mentioned 1) method of converting to air energy, an air turbine type wave power generation device has been proposed, and it has been reported that it has been installed on a floating structure "Haiming" and tested. [0003] The principle structure of the device is: sink an air chamber with a certain cross-sectional area u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B13/20
CPCF03B13/20Y02E10/38F05B2250/44F05B2270/202Y02E10/30
Inventor 宫岛光治北田秀树
Owner SUMITOMO ELECTRIC IND LTD
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