PT109986B - HYBRID CONVERSION DEVICE FOR OCEANIC ENERGY - Google Patents

Abstract

THE PRESENT INVENTION IS IN THE TECHNICAL FIELD OF SYSTEMS FOR THE OPERATING OF OCEANIC ENERGY. THE INVENTION REFERS TO A HYBRID DEVICE FOR THE CONVERSION OF OCEANIC ENERGY IN ROTATION KINETIC ENERGY ABLE TO PRODUCE MECHANICAL ENERGY FROM THE WAVES, WIND AND MARITIME CURRENTS. IN THE PROPOSED CONCEPT, THE HYBRID DEVICE FOR CONVERSION OF OCEANIC ENERGY IS ABLE TO WORK WITH ANY TIDE LEVEL, WAVE AMPLITUDE AND WIND SPEED AND MARITIME CURRENT. THE HYBRID DEVICE FOR THE CONVERSION OF OCEANIC ENERGY TO KINETIC ENERGY UNDERSTANDS A WIND TURBINE (3), A CHAIN TURBINE (4) AND A SYSTEM FOR THE USE OF WAVES ENERGY (2). EACH HYBRID DEVICE FOR CONVERSION OF OCEANIC ENERGY MAY WORK SIMULTANEOUSLY WITH THE THREE SOURCES OF OCEANIC ENERGY OR WITH ANY COMBINATION OF ONE OR TWO SOURCES, MECHANICALLY ADDITIONAL.

Description

DESCRIPTION

HYBRID DEVICE FOR CONVERSION OF OCEANIC ENERGY

Technical area of the invention

The dynamics of the universe, together with the solar incidence on the Earth's surface, induces continuous changes in the waters of the planet Earth.

There is a continuous movement of the sea waters due to the action of the terrestrial gravitational field and the wind on the sea surface. Thus, the maritime environment has great energy potential due to the presence of wind, waves and sea currents.

In today's highly competitive world and subject to the globalization of markets, energy is an important and strategic development vector.

Current primary energy consumption is already around 12 GTep / year (Tep - Ton equivalent of oil), with fossil fuels representing 70% of this total; coal and oil represent 26% each, natural gas 18% and non-fossil energy sources 30%. Non-fossil energy sources are divided almost equally between renewable energy and nuclear energy.

Energy availability and independence are considered to be fundamental factors in the economic development of the various countries. Climate change and the scarcity of these resources impose new energy models based on clean and renewable energies.

If on the one hand it is essential to change the pattern of energy consumption, also changing the primary energy consumption matrix is among the biggest challenges that the world will have to face if it wants to

1/21 reduce emissions of gases that cause the greenhouse effect and contribute to global warming, thus seeking to minimize the effects of this and other problems resulting from the use of fossil fuels.

an almost exponential increase in the world population, and in its consumption patterns, will imply an increasing demand for renewable energy, which can be extracted from the oceans.

It is estimated that by 2030, offshore renewable energy will increase by 22%.

In addition to wind energy and sea currents, wave energy stands out for its high energy density.

According to several studies carried out in the past, it appears that the waves, particularly oceanic ones, present a great energy density, not only due to their amplitude, but also due to the value of the water density.

This feature is somewhat intermittent, so it is important to maximize its use.

Considering that there are still no solutions already established for systems for harnessing wave energy, a fact that can be seen by observing the variety of solutions that have been tried to implement, there is still a lot to be developed in this area of research and development.

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State of the art

Literature review

There are several systems developed and patented over the years that convert ocean energy into electrical energy.

Offshore wind energy

As several studies carried out in the past show, the offshore wind is generally stronger and more constant (in terms of intensity and direction). This is extremely interesting because there is the potential to extract greater amounts of energy when compared to onshore wind farms. However, there are some difficulties that are difficult to overcome, namely the maritime environment, which requires systems to use this type of energy with intense and variable loads and the strong corrosion associated with this environment, which it must resist.

In addition, there are still problems related to its positioning (anchored to the seabed, floating, etc.). These are just two examples of the problems that installing a turbine in a marine environment has to face.

Still, wind turbines installed in the oceans are among the largest of all. As an example, Vestas® has a wind turbine, model V-164-8.0 MW, to be installed in a marine environment. This is a turbine with a power of 8 MW of power and with a diameter of 164m.

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Like wind turbines installed on land, there are also wind farms installed in the ocean. The biggest one is the London Array, with an installed capacity of 630 MW.

The largest offshore wind farm under construction today is Global Tech I, in the North Sea.

Wave energy

In terms of systems for harnessing wave energy, there are few devices in a commercial exploration stage. Most systems for the use of this type of energy are in an advanced state of R&D (Research and Development), prototype or in a pre-commercial stage.

Some of the most advanced and representative systems of this type are described below.

The PowerBuoy system, installed on the Pacific Ocean coast of the United States, is based on a buoy, anchored to the seabed, which, through a hydraulic system, drives an electric generator.

The Pelamis Wave Energy Converter system, tested in Aguçadoura, Portugal, consists of several articulated cylinders that, through the passage of waves, activate a set of hydraulic cylinders. The design of the joints, subject to great efforts, proved to be problematic, leading to constant and persistent failures.

The Wave Dragon system, used in Denmark, uses hydroelectric turbines to produce electricity. This system makes the wave converge on a ramp that then acts as a turbine. The system's performance is low and the size of the system can interfere with navigation. It also has several movable elements easily damaged in the event of a storm.

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Oyster Wave Energy Converter system, installed on the Scottish coasts, is an oscillating wave energy converter that drives hydraulic pumps that move a turbine. The hydraulic solution introduces significant losses in the system and generates wear problems in the seals.

WaveRoller system, installed in Peniche, Portugal, takes advantage of the submarine reciprocating currents along the coast and the surf, activating flat elements that, in turn, transmit movement to hydraulic cylinders. The proximity of the coast and the seabed may have problems with hydraulic joints and seals due to sand and debris.

Sea current energy

Sea current turbines are based on the same principle of operation as wind turbines: the lift force. The main characteristic of this energy source is its high energy density, when compared to the wind. This is due to the higher density of the water, which means that if turbines of similar dimensions were subjected to a flow of water and wind, at the same speed, the theoretically available energy for the sea current turbine is substantially higher.

Still, the average speed of sea currents is quite low (usually between 1 and 3 knots) and therefore the amount of energy available is not very high.

In addition, if the sea currents are very intense, a more robust construction of the turbines is necessary, which increases the costs associated with them.

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Even so, even with all these problems, there are currently some devices in operation for the production of electrical energy from sea currents, namely tides, when the speeds of higher sea currents are verified.

Examples of this type of turbine are the Scotrenewables SR2000 device, with 2 turbines of 1 MW each and the DCNS-OpenHydro turbine, with an installed capacity of more than 500 KW. With these and other examples of this type of turbines, there is a desire to associate them in a similar way to the way in which wind turbines are associated with wind farms.

Patents

US2016333858 (Al), System And Method for Generating Electricity Using Grid of Wind and Water Energy Capture Devices, describes a grid system or relative positioning structure of several energy conversion units, in order to avoid collisions. The combination of the generated energy is done electrically.

US2015266549 (Al), Oscillating Piston-Type Wave Power Generation Method and System, describes an invention that captures wave energy. In this device, the float moves according to the passage of the waves to move a piston that pressurizes a hydraulic fluid that induces rotation to a hydraulic motor, which, in turn, is coupled to an electric generator.

In patent US9115688 (Bl), Wind Resistance Wave Generator, a system is described that contains only one turbine, which is moved by the joint action of the passage of sea currents,

6/21 wind and waves. The buoyancy of the system is achieved through tires filled with floating foam.

The patent W02015086033 (Al), Hybrid Electricity Generators Using Wind Energy and Wave Energy, registers a device for capturing wind energy, sea currents and waves. Wave energy is harnessed in one of three ways:

The. Through a system of torsion springs and with a free wheel mechanism that, with the oscillating movement of a buoy, put the spring under tension, which causes the rotation of a shaft. With the installation of a free-wheel mechanism, the alternating movement of traction and compression of the springs generates a rotation movement of a shaft always in the same direction;

B. By pressurizing a hydraulic fluid.

ç. By a pulley mechanism. With this solution, the fact that the system has to be anchored is used to make the anchor cable pass through a pulley placed in a buoy. Thus, the oscillation movement caused by the passage of the waves forces the buoy to move in the same way, which makes the pulley move. With a free-wheel mechanism, the alternate rotation movement of the pulley can be converted into a one-direction rotation movement.

GB2515577 (A), Hybrid Electricity Generators Using Wind Energy and Wave Energy, describes a system that only captures the energy of sea currents and wind.

WO2014196921 (Al), A Water Based Modular Power Plant, describes a system in which the energy is captured to produce hydrogen and only indirectly produces electricity.

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201 patent US2014246792 (Al), Power Transfer and Generation Using Pressurize Fluids, describes a turbine (wind or sea current) used to pump a fluid under pressure, stored in a reservoir, used to drive an electric generator.

The patent W02014056049 (Al), Device Using Multiple Renewable Energy Sources, describes a system anchored on the seabed that uses the kinetic energy of the waves to pump water into a tank, which subsequently drives a turbine.

In patent US2014091576 (Al), Offshore Combined Power Generation System, wind and offshore currents are combined electrically, in a non-floating structure, anchored to the seabed.

In the patent US2013028729, Power Generation Systems and Methods, the working principle is based on hydraulics. In addition, it is a system designed to only capture energy from sea currents and wind through a pressurized fluid.

In WO2012076851 (Al), Wave Energy Converter, wave energy is captured through one or more linear electric generators.

In the patent US2011215650 (Al), Offshore Energy Harvesting, Storage and Power Generation System, the wave energy is captured through a system that includes an internal chamber with a hydroelectric turbine.

In WO2011039536 (Al), Floating Power Plant Comprising Water Turbine and Wind Turbine, the sea current turbine is driven by the tides. Furthermore, it does not capture wave energy.

The patent W02010080043 (A2), Energy System, describes ways of optimizing the combination of different types of energy. In case

8/21 of wave energy, the system describes devices with wave reception channels.

In patent W02009005383 (Al), Joint System for Conversion of Eolic, Solar, Sea Waves And maritime Currents Energies, a device is described, which, despite capturing energy from waves, wind and sea currents, does not use a one-way solution. single generator, choosing to dedicate a generator to individually use each of these energy sources.

In the patent US2008101865 (Al), Hydrodynamic Drive Train For Energy Converters That Use Ocean Currents, a system is described in which only the energy of sea currents is converted into electrical energy, through a hydraulic solution.

The patent W02006010783 (Al), Wind, Wave And Current Power Stations With Different Foundations Solutions And Methods How To Manufacture, Transport, Install And Operate These Power Stations, describes non-floating systems and essentially refers to the foundations of energy capture devices wind, sea currents and waves;

US20030145587 (Al), Wind And Wave Energy Plant, describes a system that captures wave and wind energy. The oscillating movement of a buoy is used to make a piston move, pumping sea water into a reservoir. From that reservoir, the water moves a turbine. This principle of operation is the same that makes the turbines installed in hydroelectric dams move.

In the patent US20130118176 (Al), Regenerative Offshore Energy Plant, a system is described that captures energy from wind and waves. To take advantage of wave energy, movement

9/21 orbital water particles of a wave to move a rotor.

Summary of the invention

The present invention consists of an ocean energy conversion device, consisting of six main components, the main structure (1), which supports all elements of the device, a system for harnessing wave energy (2), a wind turbine (3 ), a marine turbine (4), a set of gears (19) and a mooring system (5).

This invention is a solution to capture energy from wind, waves and sea currents, capable of converting the energy of these three renewable energy sources into mechanical energy.

As these three energy sources individually show great variability over time, when combining them, it is intended that the generation of energy is done at a more uniform and intense pace.

In order to provide the hybrid ocean energy conversion device with this characteristic, this invention allows combining in a mechanically additive manner several energy conversion systems, capable of generating energy from wind, waves and sea currents. This configuration translates into energy production at a higher and more constant pace.

As the hybrid ocean energy conversion device is buoyant, it is operational with any tide height and wave height, which is an advantage compared to others

10/21 devices that are directly anchored to the seabed. In addition, this solution is cheaper, which allows the hybrid ocean energy conversion device to be installed in a greater variety of locations, even with deeper water.

Large offshore systems are difficult to tow to shore. Therefore, they must be prepared for extreme oceanic conditions (storms), which translates into an increase in their production and maintenance costs. Yet today, systems of this type fail in unpredictable and exceptionally extreme weather conditions.

hybrid ocean energy conversion device has been designed so that it can be easily towed ashore or loaded onto a special vessel. With this feature, it is possible to guarantee its integrity and keep manufacturing and maintenance costs low.

hybrid ocean energy conversion device consists of three systems for harnessing ocean energy:

• At the top of the device is placed a wind turbine (3), capable of extracting kinetic energy from the wind and converting it into kinetic energy of rotation.

• At the bottom of the device, a sea current turbine (4) is installed, capable of converting the kinetic energy that sea currents have into kinetic energy of rotation.

• Located between the two turbines presented above, at the average level of the sea water, the conversion of the variation of the potential energy of an external buoy (12) that oscillates vertically occurs

11/21 as a function of the passage of the Christians and the wave pits, in kinetic energy of rotation.

These three systems for harnessing ocean energy, described above, are coupled to the same vertical shaft (9), to ensure that energy production is done as uniformly as possible. The rotation speed of each of the systems can be different, using mechanical couplings with free wheel systems (23).

hybrid ocean energy conversion device is prepared to work in three major types of marine environments: offshore (I), near the coast (II) or on the coast (III). The main components of the system are similar in any of the situations presented.

In a commercial exploration stage, the hybrid ocean energy conversion device is networked, with other similar devices, forming an ocean energy park.

Brief description of the drawings

Fig. 1 is a schematic representation of the main components of the hybrid ocean energy conversion device.

Fig. 2 is a schematic representation of the components that make up the main structure (1) of the hybrid ocean energy conversion device.

Fig. 3 shows the forces that generate the vertical equilibrium moment, responsible for keeping the hybrid ocean energy conversion device in a vertical equilibrium position.

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Fig. 4 is an isometric view of the hybrid wave energy conversion device.

Fig. 5 is a sectional view of the wave energy utilization system (2).

Fig. 6 is a detailed view of the gear set (19) responsible for converting the vertical movement of the inner float (13) into a rotation movement of the vertical shaft (9).

Fig. 7 is a view of the gear assembly (19), from a different angle.

Fig. 8 is a schematic view of the freewheel system (23).

Fig. 9 is a schematic representation of the hybrid ocean energy conversion device when installed on the high seas (offshore) (I), close to the coast (II) or on the coast (III).

Fig. 10 represents the effect of the tides on the distance to the seabed (25) of the hybrid wave energy conversion device.

Fig. 11 represents the hybrid wave energy conversion device, networked, in a matrix repetition of devices.

Detailed description of the invention

As can be seen in the literature review, there are several mechanisms for converting ocean energy (waves, wind and sea currents).

The following is an alternative solution for converting wave, wind and sea current energy through

13/21 of a hybrid ocean energy conversion device, capable of capturing the energy of waves, wind and sea currents and converting that energy into kinetic energy of rotation.

There are six main components that make up the hybrid ocean energy conversion device (Fig. 1).

1. The main structure (1), which supports all elements of the device and is responsible for providing mechanical stability to the system;

2. A system for harnessing wave energy (2), capable of converting the vertical oscillating movement of the waves into rotary movement;

3. A wind turbine (3), which absorbs energy from the wind;

4. A sea current turbine (4), which has a rotational movement due to the action of sea currents on it;

5. A set of gears (19), which allows the vertical shaft (9), which connects all the different energy capture systems, to always rotate at the maximum possible speed;

6. A mooring system (5), which holds the hybrid ocean energy conversion device in place.

Main structure (1)

Fig. 2 shows the main components of the main structure (1). This main structure (1) consists of a tower (6), a submerged buoy (7) and a ballast (8). The tower (6) supports the wave energy utilization system (2), the wind turbine (3), the sea current turbine (4), the submerged buoy (7) and the ballast (8). This configuration is a solid foundation

14/21 structural to assemble the various systems that make up a hybrid ocean energy conversion device.

Fig. 3 shows the main forces applied to the main structure (1) of the hybrid ocean energy conversion device. The submerged buoy (7) has a large hollow volume that generates a thrust force (A), according to the Archimedes principle, pushing the system upwards. Below the submerged buoy (7) is mounted a ballast (8), which generates a vertical gravity force (C) applied to its center of gravity. The mooring chain is mounted at the bottom of the ballast (8) and applies a force (B) at the mooring point, resulting from the mass of the mooring system (5), the waves and the sea currents.

Since these forces have different points of application and different intensities and directions, a moment of vertical equilibrium (D) is generated whenever the system deviates from its vertical equilibrium position, due to the action of the various mechanical stresses. This moment has magnitude, orientation (in the direct or indirect direction) and variable direction, according to the existing forces, but it always acts in the direction of driving the hybrid ocean energy conversion device to a vertical equilibrium position.

Fig. 4 represents the hybrid ocean energy conversion device with the wave energy recovery system (2), the wind turbine (3) and the sea current turbine (4) mounted in their respective positions in the main structure ( 1).

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Wind turbine (3)

The wind turbine (3), which is positioned on top of the hybrid ocean energy conversion device, is connected to the vertical shaft (9), (Fig. 4), positioned inside the tower (6). The action of the wind on the blades of the wind turbine (10) causes the rotation of the wind turbine (3) and, consequently, the rotation of the vertical shaft (9). Since the wind turbine (3) is a vertical axis wind turbine, it will rotate, regardless of the wind direction. In addition, due to the aerodynamic shape of the wind turbine blade (10) and its position in a circular pattern with the same orientation, the wind turbine (3) will always rotate in the same direction, regardless of the direction of incidence of the wind.

Sea current turbine (4)

At the bottom of the hybrid ocean energy conversion device is a sea current turbine (4). The sea current turbine (4) is a vertical axis turbine.

The action of the sea current on the surface of the sea current turbine blade (11) will cause the rotation of the sea current turbine (4), always in the same direction, regardless of the direction of incidence of the sea currents, because they are mounted in a circular pattern. with the same orientation. The sea current turbine (4) is also coupled to the vertical shaft (9).

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System for harnessing wave energy (2)

Fig. 4 shows the wave energy utilization system (2), mounted on the main structure (1).

Fig. 5 shows the different components that make up the system for harnessing wave energy (2). This system of harnessing the energy of the waves (2), which contains the outer buoy (12) and the inner buoy (13), converts the oscillating vertical movement of the waves into the rotation of a vertical shaft (9). The passage of the Christians and the wave pits through the external buoy (12) tends to remove it from the position of vertical balance, a rotation movement that is allowed, but that is not transmitted to the internal buoy (13). This degree of freedom of the wave energy utilization system is achieved by an elastic connection (14), a rubber component that joins the external float (12) to the internal float (13). With the passage of the waves, the external buoy (12) follows this oscillating movement. However, the inner buoy (13), which is mounted inside the outer buoy (12), only has a linear vertical movement, because it is mounted concentrically with the tower (6). With this assembly, only the vertical movement of the outer float (12) is transmitted to the inner float (13). This vertical movement of the inner float (13) is transformed into a rotary movement through a set of gears (19) and racks (15), explained in detail below.

In Fig. 6, which is a detailed view of the gear set (19), shown in Fig. 5, it is possible to understand how the conversion of the oscillating vertical movement that the waves cause in the external buoy (12) is carried out. in turn, it transmits only a linear vertical movement to the inner buoy (13) concentrically mounted with the tower (6) which converts this linear vertical movement into a rotation movement of the vertical shaft (9).

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A pair of racks (15) is mounted on the inner float (13), which, with its vertical movement, causes the pinions to rotate (17).

Fig. 7 is a representation of the system of harnessing wave energy from a different point of view than that of Fig. 6, where it is possible to see the mounting position of the freewheel system (23) on the gears (19).

Through the shafts (18) this movement of the pinions (17) is transmitted to the gears (19). With a given gear ratio, a multiplication of speed is made, transmitted to a gear wheel (24) which is coupled to the conical gear wheel (20). The movement of this conical sprocket (20) is transmitted to the vertical shaft (9) through a conical pinion (21).

All gears, shafts, bearings and other mechanical elements are mounted on the supports (22), rigidly fixed to the tower (6).

To ensure that the vertical shaft (9) always rotates in the same direction, a free wheel system (23) is installed on each of the gears (19). With this assembly, the movement is alternately transmitted by the gears (19), but always causes the vertical shaft (9) to rotate in the same direction. In this way, the freewheel system (23) acts as a clutch, since it controls the movement transmission chain.

This freewheel system (23), shown in Fig. 8, can, alternatively, be mounted on the pinions (17). The option for mounting on the gears (19) was made due to its larger dimensions, so there is more space for its assembly.

18/21 freewheel system (23) has the characteristic, by definition, to engage only in one direction of rotation and always disengage in the opposite direction.

In the upward movement of the external float (12) one of the free wheels engages, the other being disengaged. In the downward movement this gear is reversed.

With this system of free wheels (23) it is possible to transmit rotation movement always in the same direction to the vertical shaft (9), either in the upward phase of the wave or in its downward phase.

Freewheel system (23)

Due to the ever changing marine conditions, the rotation speed of the wind turbine (3), the sea current turbine (4) and the conical pinion (21) is, most of the time, different.

Coupling of the wind turbine (3) to the vertical shaft (9) is done through a free wheel system, identical to that described in the coupling between the shaft (18) and the gear (19).

Likewise, the coupling of the marine turbine (4) to the vertical shaft (9) is done through a free wheel system, identical to that described in the coupling between the shaft (18) and the gear (19).

Therefore, the freewheel system (23) developed, mounted on the wave harnessing system (2), mounted on the connection between the vertical shaft (9) and the wind turbine (3) and mounted on the connection between the vertical shaft ( 9) and the sea current turbine (4),

19/21 allows the wind turbine (3), the sea current turbine (4) and the conical pinion (21) to have different speeds of rotation. In addition, if the rotation speed of one of the 3 energy recovery systems is lower than that of the others, the free wheel system (23) allows that slower energy recovery system does not interfere with the rotation speed of the others . With this mechanical solution of sprockets and freewheel systems (23), which act as clutches, it is guaranteed that the vertical shaft (9) always rotates at the maximum possible rotation speed.

As mentioned, freewheel systems (23) are installed on the axis of the wind turbine (3), on the axis of the marine turbine (4), on the gears (19) and on the bevel gear (20), which allows each one to always rotate at the maximum possible rotation speed, with the energy captured being mechanically additive and collected in the vertical shaft (9).

In the case of the wave energy utilization system (2), the freewheel system (23) installed on the gears (19) could have been mounted on the pinions (17). The option for mounting on the gears (19) was due to the fact that they are larger and, therefore, have more space to accommodate this free wheel system (23).

Mooring system (3)

Fig. 9 shows the mooring system of the hybrid ocean energy conversion device, when mounted on the high seas (offshore) (I), close to the shore (II) or on the shore (III). This device is fixed to the seabed (25), through at least one mooring chain (26). An anchor (27) is installed on the seabed (25). This mooring system is simple and therefore has

20/21 a low cost of installation and maintenance, which allows the device to function at any time of tide.

In case the hybrid ocean energy conversion device is installed on land (28), the assembly is rigidly installed on a pontoon or other similar structure using a support structure (29).

The anchoring of the hybrid ocean energy conversion device (Fig. 10) is designed for low tide (E), high tide (F) or any other intermediate tide. The mooring chain (26) is longer than 5 times the depth at high tide to ensure effective anchoring.

The hybrid ocean energy conversion device, networked in a matrix repetition of hybrid ocean energy conversion devices (30), forms an ocean energy park (Fig. 11).

Claims (9)

1 - Hybrid device for converting ocean energy into kinetic energy of rotation characterized by comprising: a system for harnessing wave energy (2), a wind turbine (3), a sea current turbine (4) and a main structure (1) comprising: a submerged buoy (7) and a ballast (8) for the vertical balance of the device; a tower (6) with an interior vertical shaft (9) for coupling said system and turbines, in which the wave energy utilization system (2) is coupled between said turbines and comprises: a set of gears (16), a pair of racks (15), an outer buoy (12) and an inner buoy (13) mounted inside the outer buoy (12) concentrically positioned with the inner vertical shaft (9) to transform the vertical movement of the inner buoy (13) in kinetic energy of rotation in the gears (16) by the movement of the racks (15) housed inside said inner buoy (13), in which the outer buoy (12) and the inner buoy (13 ) are coupled through an elastic connection (14) to not transmit rotation movement from the external float (12) to the internal float (13), to convert the oscillating vertical movement of the waves, the rotation movement of the wind turbine (3) and the rotating movement of the chain turbine (4) in a rotating movement of the vertical shaft (9). 2 - Hybrid device for converting ocean energy into kinetic energy of rotation, according to the previous claim, characterized in that the set of gears (16) comprises: a pair of racks (15), a plurality of pinions (17) able to be mounted in line with said racks (15), a plurality of shafts (18) to transmit movement of the pinions (17), a plurality of gears (19), a conical sprocket (20), a conical pinion (21) for transmitting movement to the vertical inner shaft (9), a sprocket (24) and a freewheel system (23). 3 - Hybrid device for converting ocean energy into kinetic energy of rotation, according to the previous claim, characterized by comprising the free wheel system (23) in each gear (19), which comprises a plurality of toothed bearings to drive gears so that the movement alternately transmitted by the gears (19) causes the vertical shaft (9) to rotate in the same direction. 4 - Hybrid device for converting ocean energy into kinetic energy of rotation, according to the previous claims, characterized in that the elastic connection (14) is made of rubber to couple the outer buoy (12) and the inner buoy (13). 5 - Hybrid device for converting ocean energy into kinetic energy of rotation, according to the preceding claims, characterized in that the inner float (13) houses, inside, the gear set (16). 6 - Hybrid device for converting ocean energy into kinetic energy of rotation, according to the previous claims, characterized by comprising a mooring system (3) for anchoring at sea (I) or for anchoring the coast (II, III) . 7 - Hybrid device for converting ocean energy into kinetic energy of rotation, according to the previous claims, characterized in that the mooring system (3) comprises an anchor (27) and a mooring chain (26), for tidal situations low (E), high tide (F) or any tide. 8 - Hybrid device for converting ocean energy into kinetic energy of rotation, according to the previous claims, characterized in that the wind turbine (3) is a wind turbine with a vertical axis and comprises a wind turbine blade (10) capable of rotating with a circular pattern with the same orientation as the aforementioned wind turbine (3). 9 - Ocean energy conversion park comprising a plurality of hybrid devices for converting ocean energy into kinetic energy of rotation described in the preceding claims, characterized by operating networked, in a matrix repetition of devices or their combinations.