KR19990080153A - Aberration wave generator and method - Google Patents

Abstract

The present invention relates to an aberration wave generator and a method, and an object of the present invention is to use a new method that is completely different from the conventional compressed air wave generator, the structure is simple and easy to manufacture, operation and maintenance It is easy to provide, the initial investment and operation cost is extremely low, and it is possible to change the location, that is, move as needed, and to provide a wave power generation apparatus and method that can generate large-scale industrial power generation by enabling large-scale power generation. .

The configuration of the present invention is the same regardless of the direction of movement of the floating body 7 in the lower part of the floating body 7 which performs the heave movement 9 and the pitch movement 10 when the waves hit the sea. An aberration 8 is formed so that the rotational force is generated only by the angle of attack effect without the camber effect only in the direction, and the aberration 8 is installed on the floating body 7 above. Is connected to the shaft 12 to drive the generator 11 is configured to generate electricity.

Description

Aberration wave generator and method

The present invention relates to a water turbine wave power generator and method for extracting energy from ocean waves.

Ocean wave energy is an infinite clean energy that can not be exhausted no matter how much it is used together with solar energy. With regard to the method of extracting available energy with great expectation as an alternative energy source for human future It has been a long time research.

When ocean waves pass, the available wave energy for a wave band of unit length is expressed by the following equation.

Symbol in the equation above E, ρ, g, A Indicates the following.

E = Wave energy per unit length (newton-meter / meter)

ρ = Density of seawater (104.61269 kg-sec ² / m ⁴ )

g = Gravity acceleration (9.80665 m / sec ² )

A = Wave amplitude (meter)

For example, when a two-meter waveband passes once every 10 seconds, the energy contained in the unit's waveband is approximately 4,000 newton-meters, and the power of the 10-meter waveband reaches approximately 1,500 kw per hour.

Many researches have been conducted for a long time on wave power generation that generates electricity from infinite wave energy that is not only depleted even if it is used but also contains a tremendous amount of energy.

Today, wave power generation, which generates electricity from wave energy, employs almost compressed air.

This way, as conceptually shown in FIG. 1, there is a hole 2 or a pipe through which air flows on a closed container 1 floating on the surface of the water and a crest of waves 3. When passing through the container, the air is compressed by the air in the container, and when the trough (4) of the wave passes, the air is sucked in. Therefore, the air enters into the air. It is a device that generates electricity by turning the air-turbine (5) and causing the air turbine to drive the generator (6).

The compressed air wave power generation method has been developed a lot, and neighboring Japan has constructed a compressed air wave power plant of about 60kw / hr by applying this method to breakwater.

However, the compressed air wave power generation method as described above has a deadly disadvantage that it is not suitable as a large-capacity generator because the initial investment is high, the efficiency is low compared to the investment, and in particular, it cannot produce a large output.

The purpose of the present invention for solving the above problems is to use a new method completely different from the conventional compressed air wave generator, the structure is simple and easy to manufacture, operation and maintenance is easy, the initial The investment and operation cost is extremely low, and it is possible to change the location, that is, move as needed, and to provide a wave power generation apparatus and method that can generate large-scale industrial power generation by enabling large-scale power generation.

The object of the present invention as described above is to install a water-turbine on the floating platform (water-turbine) and to generate power by driving the generator with the rotational force of the aberration generated by the heave motion and pitch motion of the floating body in the wave It is achieved by providing a differential wave power generation apparatus and method.

1 is a conceptual diagram of a compressed air wave power generator,

2 is a conceptual diagram of a water-wave generator,

3 is a rotation principle of the aberration.

<Description of the symbols for the main parts of the drawings>

(1): sealed container (2): hole

(3): crest of wave (4): trough of wave

(5): air-turbine (6,11): generator

(9): Hebrew movement (8): aberration

(7): floating platform (10): pitch movement (12) axis

When described in detail with reference to the accompanying drawings, the configuration and the operation of the embodiment of the present invention to achieve the object as described above and to perform the task for eliminating the conventional drawbacks.

As can be seen in FIG. 2, a water turbine 8, such as used for hydropower, is installed at the bottom of a large floating platform 7 such as a barge.

When the wave hits the sea, the large floating body 7 undergoes vertical movement, that is, heave movement 9 and up-and-down rotational movement, that is, pitch movement 10.

Then, the water turbine 8 installed under the large floating body 7 also moves up and down in seawater, and the water wheel 8 rotates due to the relative motion of the fluid.

In other words, when the floating body 7 moves to the heave movement 9 and the pitch movement 10 due to the waves, that is, when the floating body 7 moves up and down, a water turbine installed under the floating body 7 is provided. (8) also moves up and down in deep water and the fluid (sea water) is a relative movement with respect to the aberration (8), as shown in Figure 3 because of this aberration is rotated by the same principle as in hydro power generation Done.

3 shows the principle of rotation of the aberration.

Then, the generator 11 is installed on the floating platform 7 as shown in FIG. 2 and connected to the shaft 12 of the aberration 8 to drive the generator 11 with the rotational force of the aberration 8. By doing so, you develop.

At this time, the blade of the aberration was specially designed such that the aberration 8 rotates in the same direction irrespective of whether the floating body 7 moves up or down, that is, regardless of the moving direction of the floating body 7.

That is, the rotational force of the aberration is generated only by the angle of attack effect without the camber effect, and FIG. 3 shows the principle that the aberration rotates in the same direction regardless of the movement direction of the floating body 7. Giving.

In particular, the present invention can design the floating body 7 so that resonance occurs between the motion of the floating body 7 in the wave and the ocean wave, thereby causing a large relative motion, so that a large-capacity wave generator can generate large capacity. .

In addition, it is a matter of course that a plurality of devices of the present invention as described above can be expanded and used.

The present invention as described above is simple in structure, easy to manufacture, easy to operate (operation) and maintenance, extremely low initial investment and operating costs, and can be changed, that is, moved to a large capacity if necessary It is possible to develop large scale industrial development.

Claims (2)

In the wave power generator for producing electricity from the wave energy, Angle of attack effect without camber effect in the same direction regardless of the direction of the float's movement under the floating and pitch movement when the wave hits the sea An aberration wave generator, characterized in that the water turbine is installed to generate a rotational force only, and the aberration is connected to a generator installed on an upper portion of the float to drive the generator to generate electricity. In the wave power generation method for producing electricity from the wave energy, Aberration-type wave power generation method for generating power by installing aberrations on a floating body and driving a generator by the rotational force of aberration generated by a heave motion and a pitch motion of a floating body in a wave.