JP2014095310A - Wave power generation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate electricity in a wave power generation device of this invention by converting wave oscillation directly to a sliding member (2) (corresponding to a rotor in the conventional power generator) which oscillates vertically and by sliding a stator (1) to eliminate poor efficiency due to rotation of the power generator through air and expensive installation costs.SOLUTION: This wave power generation device is operated to convert wave power directly into energy in which a stator (1) is set upright at the sea bottom, a sliding element (2) is arranged outside, the stator (1) has many magnets (1b) overlapping each other and the sliding element (2) generates electricity under wave oscillation.

Description

  The present invention relates to a wave power generation apparatus that directly extracts wave energy and generates electric power.

Wave power generation of devices that convert to air pressure with conventional wave energy has a higher energy density than wind energy, but the energy density during stormy storms is saturated at a much lower level than wind power To do.
Therefore, it is essentially easy to put into practical use and expected to be used at the same level as wind power.

The first cause is the low efficiency of the oscillating water column type wave power generation device that appeared as a trump card for storm countermeasures.
The second cause is an expensive device manufacturing cost of the movable object type wave power generator that has appeared thereafter. We thought that a power generation device having both the durability of a vibrating water column type wave power generation device and the high efficiency of a movable object type wave power generation device was required.

  Accordingly, an offshore wave power generation apparatus was developed under the name of JP2012-2218A. The offshore wave power generator uses the power of the wave to exchange the vertical movement of the wave with the wave of the air, and the exhaust air and the intake air are separated by the back-support valve to generate power with two turbines. there were.

JP2012-2218A JP 2010-84724 A

However, the name of Japanese Unexamined Patent Application Publication No. 2012-2218 The offshore wave power generation apparatus has the following drawbacks.
(B) The installation cost is high.
The open port <3> includes an air chamber <1> in which vertical vibration of seawater as a movable object is naturally generated via a horizontal water channel <2>, and an intake side check valve <7> discharge side of a reversely supporting valve that separates vertical vibration A check valve <9>, a high pressure tank <11>, a low pressure tank <5> and the like are required.
(B) There are two turbines and generators.
The intake side turbine generator <4> and the exhaust side turbine generator <12> were required.
(C) Waves of high density seawater were exchanged for air.
Since it was exchanged with air, the pressure of the steam of thermal power generation is too small compared with 20 Pascals at a pressure of 0.1 Pascal or less.

  Therefore, the wave power generation apparatus of the present invention exchanges direct waves for energy. The stator (1) stands on the seabed, and the stator (1) has a large number of magnets (1b) stacked thereon. ) Is arranged on the outer side, and the slider (2) provides a wave generator that generates electricity by shaking the wave.

  In order to achieve the above object, the wave generator directly exchanges waves with energy, and is composed of a stator (1) and a slider (2), and the stator (1) is a pile (1e) and a magnet. (1b). The pile (1e) is stabilized by driving into the seabed (1a). And the magnet (1b) is ring-shaped and covers the pile (1e) so as to be staggered. The upper part of the pile (1e) is being fixed to the breakwater (1c) via the fixture (1d). Then, the pillar (1e) of the stator (1) is driven into the seabed (1a) or installed on the breakwater (1c).

  And the magnet (3b) is a step magnetizing type, and the surfaces of the magnets that repel the N and N poles are forcibly combined so that the N and S poles are staggered outside the stator (1). The pole and the S pole were matched in the same way.

  The slider (2) is attached through the stator (1). The slider (2) is made up of a coil (2a) and a magnetic part (2b) so that the coil (2a) is not buffered. A gap is opened, and a magnet (1b) portion is wound, which is surrounded by a magnetic portion (2b) made of substantially U-shaped silicon steel. The coil (2a) includes a diode (2c) that converts alternating current into direct current.

  The coil (2a) is wound in many numbers so as to wind the stator (1), the magnetic part (2b) is arranged in a circle around a number of substantially U-shaped ones, and the slider (2) turns the stator (1) around. The goal was achieved by moving up and down.

The wave power generator of the present invention has the following effects.
(B) Since the wave force is directly exchanged for electric energy, there is little waste of energy.
(B) Facilities are simpler than conventional wave power generators.
(C) The entire device replaces the wave-dissipating block.
(D) The equipment is simpler than wind power generation.
(E) It can be made into a wave power generator using the main pillar of the offshore wind power generator.

The figure is a perspective view of the present invention. The figure is a cross-sectional view of the present invention. The figure is an enlarged view of the slider of FIG. The figure is a sectional view showing the plane of the slider shown in FIG. The figure is a perspective view with a cover attached. The figure is a cross-sectional view with a cover attached. It is an enlarged view of the slider of FIG. 2 for description of magnetic flux. The figure is a cross-sectional view of the slider of the third embodiment. It is sectional drawing explaining magnetic flux.

  The wave power generator of the present invention is designed to directly exchange waves for energy, and to devise it by watching the pier shake. If the wave power generator is roughly separated, it is composed of a stator (1) and a slider (2). The stator (1) is composed of a ring-shaped magnet (1b) centered on the pile (1e), and the magnet (1b) is first driven into the seabed (1a). A large number of magnets (1b) are step-magnetized so that N poles and N poles, and S poles and S poles are combined, and N poles and S poles are alternately arranged outside the stator (1). .

  The pile (1e) of the stator (1) is driven into the seabed (1a) near the breakwater (1c), and the fixture (1d) is installed on the breakwater (1c) above the pile (1e). Is intervening. In the breakwater (1c), there is an inverter that changes the electricity generated by the wave power generator to a direct current.

  The slider (2) is attached through the stator (1) and slides on the pillar of the stator (1). The slider (2) is a rotor if it rotates. However, in the present invention, since it reciprocates like a piston, it is named as a slider (2). The slider (2) is made up of a coil (2a) and a magnetic part (2b), and the coil (2a) is wound so as to wind the stator (1). Since it cannot be used as it is, a diode (2c) that converts it into a direct current is interposed.

  However, using an inverter is easier. And since the magnetic part (2b) has arranged the substantially U-shaped thing 1 round, the magnetic flux (2g) is transmitted to the substantially U-shaped, and the magnetic flux (2g) efficiently changes to electricity. The substantially U-shaped magnetic part (2b) is attached so that a gap is opened on the outer side according to the number of inner diameters because the inner diameter is narrower.

The slider (2) has a float (2e), has a buoyancy that floats on the water, has a slider (2) in the center of the float (2e), and the slider (2) A hinge (2f) is interposed in the float (2e) that moves according to the gradient. The hinge (2f) is attached so that the direction attached in parallel is next to the float (2e) in accordance with the direction in which the waves come.
The hinge (2f) is provided with a shaft on the slider (2) side and a hole for supporting the shaft on the float (2e) side.
In addition, an elastic part such as rubber can be adopted as a whole so that an object which is not affected by an inclination wave in either direction can be produced.

  Waves are waves and swell energy sources, near the breakwater (1c), the place where the waves bounce back is the place with the highest waves, and the better place is where the breakwater (1c) overlaps the V bay. In the place where the bay becomes, there is energy that the sea waves gather and the sea water jumps about 20 meters toward the sky. Usually, the wave block was put and the wave was turned off. Blocks are unnecessary.

  When the float (2e) moves up and down by the vertical movement of the wave, and the slider (2) moves up and down via the hinge (2f), the magnet (1b) of the fixed stator (1) is moved. Acts and generates electricity.

  The magnet (1b) of the stator (1) is ring-shaped and forcibly combines the S pole and the S pole, and the N pole and the N pole. The place where the S poles are combined and the place where the N poles are combined is processed so that the center of the magnetic part (2b) of the slider (2) is formed, and the coil (2a) is provided therein.

  Since the magnet (1b) of the stator (1) is a permanent magnet, when the magnetic field lines flow from the N pole to the S pole and flow from the N pole to the S pole, if the slider (2) passes nearby, the magnetic flux (2g ) Passes through the magnetic part (2b) of the slider (2), and when the pole is quickly switched by the change of the magnetic flux (2g), the magnetic flux (2g) causes an electromagnetic induction current to flow through the coil (2a). Since the current is alternating current and the frequency is constantly changing, it is difficult to use unless converted to direct current. In view of this, a method of making a direct current through the diode (2c) and an inverter are preferable because the inverter is equipped with a diode (2c) that temporarily changes alternating current to direct current and a device for generating a frequency. The electricity generated is sent to the breakwater (1c) via a cable.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of the present invention, and the best place is best because the wave is struck on the immediate side of the breakwater (1c) and the wave is reflected and returned because the height of the wave is high. Therefore, the pile (1e) is hit at a position 3 meters from the breakwater (1c), and the upper portion of the pile (1e) is fixed by the fixture (1d).

  A dotted line is a figure showing the inside of the sea, and the pile (1e) is installed with sufficient magnets (1b) according to the vertical movement of the wave. Accordingly, since the tide wave is about 30 cm in the Sea of Japan, the magnet (1b) of the stator (1) can be saved more than the tide wave of 4 meters on the Pacific side. A rubber cover (1f) is provided to protect the magnet (1b) and prevent foreign matter from being adsorbed. The cover (1f) is flexible and surrounds the slider (2).

  The slider (2) generates electric power by induction of the magnet (1b), and the float (2e) is attached to the slider (2) via the hinge (2f), so that the float (2e) is matched to the wave gradient. ) Also leans. The float (2e) has a height of 5 meters, a width of 10 meters, a height of 2 meters, a total tonnage of 100 tons, and a drainage of 50 tons.

  Therefore, the weight is 50 tons, the buoyancy is also 50 tons, and when swaying up and down by the wave of waves, there is a weight of 50 tons to float completely in, and there is a resistance of 50 tons to completely sink . In order to convey it quickly, the height is as thin as 2 meters. Therefore, 1 ton of buoyancy and gravity are added to the vertical movement every 2 cm.

  The waves rushed from the lower right to the upper left in the same direction as the fixture (1d), so the 5 meters long was easy to ride the waves, and the 10 meters wide was made long to maintain buoyancy.

  FIG. 2 is a schematic cross-sectional view of the present invention. The schematic diagram is a cross section of a quay in the Sea of Japan, where a pile (1e) is hit 3 meters from the breakwater (1c), and the stator (1) from the breakwater (1c) through the fixture (1d). Is installed, but this time both are adopted. First, with a tow truck with a screw that raises a utility pole to hit the pile (1e), the boom is extended from the breakwater (1c), a hole is dug in the seabed (1a), and the pile (1e) is set up. In order to keep the pile (1e) vertical, the ground (1a) is solidified with a weight (1j) made of concrete in the shape of a ring, and the magnet (1b) and the slider (2) of the stator (1) ) Is inserted, and the upper part is attached to the breakwater (1c) with the fixture (1d). In addition, although it becomes a large scale, a pile (1e) is hit with a pile driver.

  Since the Sea of Japan has few tidal waves and is about 30 centimeters, it is not necessary to attach an extra magnet (1b) of the stator (1). Therefore, if the Pacific side assumes an 8 meter wave, there is a 12 meter layer (1b) with 4 meters of tidal waves, but there is no need to think about the tidal waves on the Sea of Japan side. The layer of (1b) may be 8 meters.

  The pile (1e) is Φ300 and is driven 10 meters below the seabed (1a). On the outside, a ferrite magnet (1b) in the form of a ring, the outside is Φ900, the inner diameter is Φ300, and the thickness is 400 mm. The magnets repel so that they have N and N poles and S and S poles. (1b) is forcibly attached. However, it can also be easily attached by sandwiching an iron yoke.

  The layer to which the magnet (1b) is attached is 8 meters, and 20 ring-type anisotropic ferrites of the magnet (1b) are combined. The 8 meter magnet (1b) layer is a normal wave. When the amplitude of a typhoon is high, there is no magnet (1b) at the highest point of the wave and the lowest point of the wave. 1b) Power is generated only where there is.

  The entire shape of the slider (2) is a ring through which the stator (1) penetrates and moves up and down by the force of waves, and the slider (2) moves to generate electricity, so 5 mm was opened, and four cars (2d) were attached one above the other to protect the gap. Since the car (2d) is attached to protect the gap, it is better to use a metal car (2d).

  The power generation part of the slider (2) is made up of a magnetic part (2b) and a coil (2a). First, the coil (2a) is wound around a Φ301 tube to form a substantially U-shaped magnetic part ( 2b) is a cylindrical shape sandwiching the coil (2a). The magnetic part (2b) has 8000 pieces of silicon steel having a thickness of 0.35 arranged in a circle.

  The magnetic part (2b) is 400 mm, which is the same as the pitch of the magnet (1b), the substantially U-shaped outer side is 600 mm, and the substantially U-shaped inner side including the coil (2a) is 200 mm. . The magnetic part (2b) transmits magnetic flux (2g) from the N pole to the S pole.

  The coil (2a) has a magnetic part (2b) on the outside, and the coil (2a) is transmitted to the coil (2a) so that the magnetic flux (2g) is wrapped. The coil (2a) is wound around Φ5 2400 times, and the wiring is provided with four diodes (2c) and sent on the breakwater (1c).

  The power for moving the slider (2) is the float (2e) that receives the force of the wave directly, and the float (2e) is stopped by the hinge (2f) so as to tilt according to the inclination of the wave. The float (2e) is lowered with a wave slope on the right side, compared with (2) being horizontal.

  The gap between the magnet (1b) of the stator (1) and the slider (2) is protected by a flexible cover (1f) made of rubber so as not to adsorb iron powder. And the lubricating oil is put in the lower cover (1f), and withstands the water pressure in the sea.

  FIG. 3 is an enlarged view of the slider (2) of FIG. 2, and details of the stator (1) and the slider (2) will be described. The cross section of the stator (1) has a pile (1e) inside, and a magnet (1b) that forms a ring on the outside of the stator (1) repels so that the N pole and the N pole, and the S pole and the S pole ( 1b) is forcibly attached.

  The magnetic field lines enter the magnetic part (2b) of the slider (2) from the place where the N and N poles are bonded together, pass through the substantially U-shaped outside, and return to the place where the S and S poles are combined. When this slider (2) is shaken by a wave, the slider (2) moves up and down to generate electricity.

  The slider (2) is the same as the rotor, but it does not rotate like the rotor, but opens the gap and moves the end of the stator (1) up and down. It was set as a sliding element (2). Also, there are 6 or more cars (2d) in total so as not to interfere with each other, and a gap of 0.5 mm is maintained.

  FIG. 4 is a cross-sectional view of the plane crossing the slider (2). The top is near the breakwater (1c) and the bottom is the sea side. And there is a pile (1e) in the center, and the pile (1e) supports everything. On the outside, there are ferrite magnets (1b) which are permanent magnets of the stator (1), and 20 pieces in the form of a ring, N poles and N poles are stacked, and S poles and S poles are stacked.

  There is a coil (2a) of the slider (2) on the outside, and there is a gap of 0.5 mm between the surface of the magnet (1b) of the stator (1) and the inner surface of the coil (2a), and this gap is maintained. A car (2d) is provided for this purpose. The car (2d) is provided with four pieces, and the car (2d) is hard and made of metal to protect the gap of 0.5 mm. And since the car (2d) is attached up and down, it is attached in total of eight.

  The coil (2a) is wound around Φ5 2400 times, and is wound in the magnetic part (2b) so as to wind the magnet (1b) of the stator (1). Therefore, the coil (2a) is wound to a predetermined length, and then the substantially U-shaped object of the magnetic part (2b) is attached to the outside of the coil (2a). The coil (2a) moves outside the magnet (1b) of the stator (1) to generate current and generate electricity.

  There is an iron core of the magnetic part (2b) on the outer side, and the magnetic part (2b) has a substantially U-shape, with 2800 pieces of 0.35 silicon steel arranged in a circle and close to the inner gap. Are in contact with each other, but the outside is fan-shaped and has a gap of 0.6 mm.

  An example of use will be described with reference to FIG. The figure includes a cover (1f), which is attached to protect the magnet (1b), and is similarly attached to the sea. If the lubricating oil is not put in the underwater cover (1f), the cover (1f) is prevented from being crushed by the water pressure due to water pressure in the sea. And when the breakwater (1c) becomes a corner, there is also a breakwater (1c) on the right side. The waves usually come from the lower right to the upper left, and the height of the waves in the Sea of Japan is about 8 meters, so there is no magnet (1b) for the stator (1) beyond 8 meters. The magnet (1b) of the stator (1) is not prepared and does not generate electricity. However, when the wave exceeds 8 meters, sufficient power is generated by the magnet (1b) installed between 8 meters.

  Wave generators are best in the Sea of Japan, where there are few tidal waves. Another advantage is that the wave has a long wavelength and a 30-meter pitch. Therefore, a large float (2e) can be attached. A large float (2e) has buoyancy, and a lower one has less wave energy loss.

  In the case of a wave of 8 meters, when the float (2e) rises upward, the total amount of drainage of the float (2e) is 100 tons, the weight is 50 tons, and the sea level is half the height of 2 meters. It is 1 meter away.

  The sea level will sink 50 centimeters to 1.5 meters, 50 centimeters of buoyancy will be added, and 50 centimeters of buoyancy will be 25 tons. The buoyancy of 25 tons is transmitted as it is to the slider (2), and the slider (2) has the magnet (1b) of the stator (1) inside, so that the slider (2) has the magnetic flux of the magnet (1b). (2g) becomes resistance. When it does not move due to the resistance, the sea level rises further to the deck of 2 meters float (2e), and when the sea level rises, 1 meter buoyancy is added and the buoyancy is 50 tons.

  The torque of 50 tons buoyancy is enough torque for the slider (2) to cut off the magnetic flux (2g), and the slider (2) cuts off the magnetic flux (2g) of the magnet (1b) of the stator (1). Thus, a current is generated in the coil (2a) of the slider (2).

  Then, if it rises 40 centimeters, it will come to the opposite magnet (1b), and the opposite magnetic flux will flow. Then, a reverse current flows and an alternating current is generated. Then, the positive and negative currents of AC are switched at a pitch of 40 cm. Therefore, assuming that the wave wavelength is 30 meters and comes every 5 seconds, the 20 magnets (1b) reciprocate so that 40 electricity changes. Since it occurs in 5 seconds, it becomes 4 Hz.

  FIG. 6 is a cross-sectional view of the wave generator, where the float (2e) is a hinge (2f) attached to the slider (2), and the left side rises in accordance with the change of the wave surface. Yes. Then, the end of the cover (1f) is attached to the pile (1e) under the fixture (1d), and the lower side of the cover (1f) is attached to the slider (2). The underwater cover (1f) is attached to the lower side of the slider (2), and the tip of the cover (1f) is provided on the pile (1e).

  The place is where the waves come back to the breakwater (1c), and the waves are higher than normal places. The place is a place where waves rebound, and if there is no wave generator, a wave-eliminating block is necessary.

  And where the breakwater (1c) is combined with other breakwaters (1c), higher waves are obtained. In places where the waves are narrow like the bay, the energy of the waves is combined and the wave motion increases.

  In FIG. 7, in order to explain the slider (2) in detail, the slider (2) is enlarged, the magnetic flux (2g) is written, and the slider (2) on the right side will be described. The magnet (1b) of the right stator (1) has an N pole on the upper side of the slider (2), and its magnetic flux (2g) is transmitted to the right through the magnetic part (2b) through the gap, It passes through the magnetic part (2b) on the side and enters the south pole through a gap.

  And an electric current generate | occur | produces because the magnetism of a magnet (1b) moves through a coil (2a). The current flows only when the magnet (1b) and the coil (2a) are working with each other, and no current flows when the slider (2) is stopped. Electromagnetic induction is caused by a change in magnetic flux (2 g), and an electromotive force must be present for current to flow. Therefore, electromagnetic induction utilized a phenomenon in which an electromotive force is induced in the coil (2a) by a change in the magnetic flux (2g) passing through the coil (2a).

  Therefore, when the slider (2) moves downward, the upper side of the slider (2) becomes the S pole, and the lower side of the slider (2) becomes the N pole, so that the magnetic flux (2g) is reversed. . At this time, electricity flows through the coil (2a) due to a change in magnetic flux.

  Since the height of the float (2e) is 2 meters, when the thickness of the slider (2) is 600 mm as shown in the sectional view of FIG. 8, the height of the float (2e) is 2 meters. In order to generate a current by attaching a plurality of layers to the coil (2a) of 2), four substantially U-shaped magnetic portions (2b) are inserted into the coil (2a) as shown in FIG. ) Is wound in a staggered manner for each layer.

  A hinge (2f) is attached between the slider (2) and the float (2e), and the float (2e) is tilted by the wave inclination, and the slider (2) is interposed via the hinge (2f). Keep the slider (2) parallel.

  FIG. 9 is a cross-sectional view of FIG. 8 in which magnetic flux (2 g) is written. The magnet (1b) has a pitch of 400 mm, and has a shape in which four coils (2a) of a substantially U-shaped slider (2) are sandwiched accordingly. The magnetic flux (2 g) emitted from the N pole enters the S pole. And if it moves up and down by the effect | action of a wave, an electric current will generate | occur | produce because the magnetism of a magnet (1b) moves a coil (2a).

  The current flows only when the magnet (1b) and the coil (2a) are working with each other, and no current flows when the slider (2) is stopped. Electromagnetic induction is caused by a change in magnetic flux (2 g), and an electromotive force must be present for current to flow. Therefore, electromagnetic induction utilized a phenomenon in which an electromotive force is induced in the coil (2a) by a change in the magnetic flux (2g) passing through the coil (2a). The coil (2a) wound around the slider (2) should be wired in parallel in order to avoid the heat generated by the coil (2a).

  Moreover, the thing of 40 Hz is also made by making the thickness of the magnet (1b) of a stator (1) narrow with 40 mm. Compared with the magnet (1b) having a width of 400 mm, the thickness of the 40 mm magnet (1b) has a fast magnetic flux (2 g) replacement, and 40 Hz is a usable range compared to 4 Hz in Example 2. . The magnet (1b) of the 40 mm stator (1) has 49 layers of the coil (2a) of the slider (2), and the coil of the slider (2) will be described with reference to the sectional view of FIG. (2a) and magnetic part (2b) are 20 millimeters. The coils (2a) are wound in a staggered manner, and the coil (2a) is wound around Φ1 400 times, and the coils (2a) of the respective layers are connected in parallel.

  This method of reducing the pitch can not only increase the frequency but also generate power when the wave is small. Assuming 1 meter with a small wave, the vertical movement of 1 meter cuts off the magnetic flux (2g) of 25 magnets (1b), and 25 positives and negatives are swapped, resulting in 12 frequencies, and the speed of the waves If the interval is 1 second, 12 Hz can be generated.

  A wind power generator installed on the ocean can be a wave power generator by attaching a magnet (1b) around the main pillar of the wind power generator. Offshore wind power generation has driven piles (1e) into the sea floor (1a), and a generator and a windmill rotating in the wind. Therefore, when a wave power generation device is attached to the water surface, the float (2e) is used as a floating pier and is convenient for transferring to the wind power generation device at the time of inspection.

DESCRIPTION OF SYMBOLS 1 Stator 1a Sea bottom 1b Magnet 1c Breakwater 1d Attachment 1e Pile 1f Cover 1j Weight 2 Slider 2a Coil 2b Magnetic part 2c Diode 2d Car 2e Float 2f Hinge 2g Magnetic flux 3 Sea bottom

Claims (1)

The wave power generator is composed of a stator (1) and a slider (2).
The stator (1) is composed of a pile (1e) and a magnet (1b),
The slider (2) penetrates the stator (1) with play inside,
The wave generator (2), wherein the slider (2) comprises a coil (2a), a magnetic part (2b), and a float (2e).