KR102427102B1 - A tidal power generator and tidal power generation system in deep water - Google Patents

Abstract

A deep-sea current generator according to an embodiment of the present invention includes a mooring part fixed by digging a certain depth into the seabed, a generator equipped with a transmission and generating power using the flow of an ocean current, and a drive shaft of the generator from one side of the generator A propeller connected to a first end connected to the generator and the other end connected to the mooring unit, transferring the power generated from the generator to a storage, and allowing the generator to be located within a certain range from the mooring unit A line, one end is electrically connected to the other end of the first line, the other end is connected to the storage, and at least two or more parts connected to the second line and the generator for transferring the power generated from the generator to the storage. include fluids.

Description

A TIDAL POWER GENERATOR AND TIDAL POWER GENERATION SYSTEM IN DEEP WATER

The present invention relates to a deep-sea current generator, and more particularly, to a deep-sea current generator with a simple structure and disposed in the deep sea.

Recently, as problems such as environmental regulations and uncertainty in the supply and demand of fossil fuels due to global warming have emerged, power generation using wind power, wave power, or tidal power as a new renewable energy production system is in the spotlight.

The tidal power generation system is a power generation system using the ocean current generated by the tidal difference. Such a tidal current generation system is also called an ocean current generator.

The current generator is composed of a generator, a turbine, a speed increase gearbox, a power conversion device, and a support structure. Like a wind power generator, the current generator rotates a turbine using the kinetic energy of a fluid, and generates electricity by converting the rotational speed of a drive shaft connected to the turbine through a speed increase gearbox from low to high speed. The generated power or electrical energy is transmitted via subsea cables to a nearby substation on the beach.

The basic laws of physics applied to current generators that extract energy from the current flow are the same as for wind power generators, and it is cost-effective and most efficient to use a wind power generator's propellers and turbine-like lifting devices for ocean current generators. has been revealed

In ocean current generation, electricity is generated by installing a current generator in a place where a rapid ocean current usually occurs due to tidal ebb and flow, and the power generation output is calculated from the following equation (a).

P _w =0.5ηρAV ³ (a)

Therefore, the power generation output (P _w ) obtainable from ocean current power generation is proportional to the density ρ of the ocean current, the efficiency η of the ocean current generator, and the sea water passage cross-sectional area A, and is proportional to the third power of the ocean current speed V, so a high ocean current speed V is the power of the ocean current generator. Absolutely beneficial for efficiency.

Most current generators fix a support structure with a circular cross-section on the seabed, and the generator is fixedly installed on it to generate electricity using the flow of currents or currents.

Therefore, the current generators submerged in the sea apply the same principle as the wind generators and are installed in a line or in a form similar to that of a wind farm.

The main difference between wind power and current power is that for the same rated power, the turbine for a current generator is much smaller, which means that the fluid and generator can be placed much closer together, and the density of seawater is about 840 times greater than that of air. Because of its size.

The tide changes in the form of a sinusoid with repeated high and low tides twice a day at a cycle of 12 hours and 24 minutes, and usually flows in the opposite direction of 180 degrees. That is, the direction of the current changes according to the tide 4 times a day.

Therefore, since the speed of the current is non-uniform depending on the area where the current generator is installed, its surroundings, and the conditions of the seabed topography, there is a problem in that it is difficult to secure stability or reliably control the amount of power generation in the place where the current generator is installed.

On the other hand, in general, the speed or magnitude of currents does not necessarily require a large tidal range or height, but is related to the tidal height of the area. Moreover, compared to tidal power generation, full-scale large-scale power generation has not been realized in the case of ocean currents, mostly because the speed of ocean currents, that is, energy density, is too small for economic development.

In other words, it is rare in the world where the average speed of ocean currents effective for ocean current development exceeds 2.0 m/s. In areas exceeding /s, the water depth of the seabed was too deep or the local topography or accessibility was unfavorable for ocean current generation, and there were also problems that the current generation efficiency of current generators was insufficient to secure economic feasibility.

Republic of Korea Patent Publication No. 10-1321920 (2013.06.20, Floating offshore power plant)

An object of the present invention is to provide a deep-sea current generator that is installed in the deep sea bed where a constant sea current speed is maintained and can continuously produce economical power in order to solve the above problems.

In addition, an object of the present invention is to provide a deep-sea current generator, which can be freely expanded or changed in design through a simplified structure, and is easy to install in the deep sea, in order to improve the above-described problems.

In addition, an object of the present invention is to provide a deep-sea current generator capable of maximizing power generation efficiency by locating the current generator in a place where there is little change in the movement speed of the ocean current as the deep seabed thousands of meters below sea level.

In order to achieve the above object, the present invention provides a mooring part fixed by digging into the seabed to a certain depth, a generator equipped with a transmission and generating electric power using the flow of an ocean current, one side of the generator is connected to the drive shaft of the generator A propeller, a first line, one end connected to the generator and the other end connected to the mooring unit, transfers the power generated from the generator to the storage, and allows the generator to be located within a certain range from the mooring unit, one end A second line electrically connected to the other end of the first line, the other end connected to the storage, and a second line for transferring the power generated from the generator to the storage, and at least two or more floating bodies connected to the generator. A deep-sea current generator is provided.

Each of the floating bodies may be connected to a main body of the generator and a drive shaft of the generator.

It may further include at least two or more supporting structures connecting the floats to the main body of the generator and the drive shaft of the generator, respectively.

The floats may have a spherical shape.

The propeller may include at least two or more blades.

The transmission may be an Electronic Speed Controls (ESC) capable of changing the rotational speed of the propeller according to a change in sea current.

The mooring part may be fixed to the seabed having a water depth of 1,000 m to 4,000 m.

In order to achieve the above other object, the present invention is electrically connected to at least two or more deep-sea current generators, each of the deep-sea current generators, and collects all the power transmitted from each of the deep-sea current generators to a storage or power station. At least one or more junction boxes that can be re-transmitted and are disposed in a floating type on the sea, store the power generated from the deep-sea current generator, and use the generated power at a power plant, transmission tower, substation or and a floating power station capable of transmitting power to an electric vessel, wherein the deep-sea current generator is equipped with a mooring part and a transmission fixed by digging a certain depth into the seabed, and produces power using the flow of the ocean current a generator, a propeller connected to the drive shaft of the generator from one side of the generator, one end connected to the generator and the other end connected to the mooring unit, and transfer the power generated from the generator to the offshore power station, the generator a first line, one end electrically connected to the other end of the first line, the other end connected to the marine power station, and the power generated from the generator It provides a deep-sea current power generation system including at least two or more floats connected to a second line and the generator that are received through the first line and transferred to the offshore power station.

It may further include a drill ship capable of dredging a hole to be inserted into the mooring unit on the seabed.

When the hole is dredged, it may further include a generator installation vessel capable of installing the deep-sea current generator in the hole.

The deep-sea current generator may be disposed at a depth of 1,000 m to 4,000 m.

The deep-sea current generator and the deep-sea current power generation system according to the present invention can be stably installed in the deep sea bed to economically and continuously produce a certain amount of power.

In addition, since the deep-sea current generator and the deep-sea current power generation system according to the present invention install the deep-sea current generator in the deep sea using a drill ship, there is an advantage in that the installation difficulty or installation cost of the deep-sea current generator is lowered compared to the prior art.

In addition, the deep-sea current generator and the deep-sea current power generation system according to the present invention have a simple structure, so that facility expansion and maintenance are easy.

1 is a view showing a deep-sea current generator according to an embodiment of the present invention.
2 is a diagram illustrating a deep-sea current power generation system according to an embodiment of the present invention.
3 is a view showing that the drill ship according to an embodiment of the present invention constructs a hole for installing a deep-sea generator on the seabed.

Hereinafter, a deep-sea current generator and a deep-sea current power generation system according to the present invention will be described in detail with reference to the accompanying drawings for convenience of description.

All embodiments described below are illustratively shown to aid understanding of the present invention, and may be modified differently from the embodiments described herein and implemented in various embodiments. In addition, in describing the present invention, if it is determined that a detailed description of a related known function or known component may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

The accompanying drawings are not drawn to scale in order to help the understanding of the invention, but the dimensions of some components may be exaggerated. Even though they are indicated in , they are indicated with the same symbols as possible.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. When it is described that a component is 'connected', 'coupled' or 'connected' to another component, the component may be directly connected, coupled or connected to the other component, but the component and the other component It should be understood that another element may be 'connected', 'coupled' or 'connected' between elements.

Therefore, since the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical spirit of the present invention, there may be various modified embodiments of the present invention. .

On the other hand, when a component is referred to as “on” or “on”, it includes all cases in which another layer or other component is interposed in the middle as well as directly above other components. On the other hand, when a component is referred to as “directly on” or “directly above”, it indicates that other components are not interposed therebetween.

In addition, spatially relative terms "below", "lower", "above", "upper", etc. It can be used to easily describe the correlation with other components. A spatially relative term should be understood as a term indicating a different direction between the components when used in addition to the directions shown in the drawings or when the components operate. For example, when a component shown in the drawings is turned over, a component described as "below" or "beneath" of another component may be placed on top of the other component. Accordingly, the exemplary term “below” may include both directions below and above. Components may also be oriented in other orientations, and thus spatially relative terms may be interpreted according to orientation.

In addition, the terms or words used in the present specification and claims should not be limited to conventional or dictionary meanings, and the inventor may properly define the concept of the term in order to best describe his invention. Based on the principle, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Hereinafter, a deep-sea current generator according to an embodiment of the present invention will be described in detail with reference to FIG. 1 .

1 is a view showing a deep-sea current generator 1000 according to an embodiment of the present invention.

The deep sea current generator 1000 according to an embodiment of the present invention includes a mooring unit 1100, a generator 1200, a propeller 1300, a first line 1400, a second line 1500, and a floating body 1600. includes

In the mooring unit 1100 according to the present embodiment, when a hole of a certain depth is formed in the seabed 1 by a perforator such as a drill or a driver, the hole is dug and fixed. Accordingly, the mooring unit 1100 may be configured in a shape similar to that of a pile, as shown in FIG. 1 .

However, the mooring unit 1100 does not necessarily have to be configured in a shape similar to a pile, and may be configured in a shape similar to a nail, screw, or anchor as long as it can be fixed to the seabed 1 .

The mooring unit 1100 is connected to the generator 1200 by a first line 1400 . Accordingly, in the deep-sea current generator 1000 according to the present embodiment, even if the speed or flow direction of the ocean current is changed, the mooring unit 1100 does not flow out of a certain range from the fixed position.

Meanwhile, the mooring unit 1100 according to an embodiment of the present invention is fixed to the seabed 1 by digging into the seabed ground located at a depth of 1,000 m to 4,000 m.

In this way, the seabed 1 reaching a water depth of 1,000 m to 4,000 m is defined as a deep sea bed, and the speed of an ocean current flowing through the deep sea floor is known to be an average of 2 m/s.

On the other hand, although the speed of the ocean current flowing along the coast where the water depth is less than 200 m varies depending on the difference between the sea area and the tidal wave, it is known that the average is 0.5 m/s or less.

Accordingly, the mooring unit 1100 according to the present embodiment places the deep-sea current generator 1000 in the deep sea floor where the flow of the ocean current faster than the coast is formed, so that the power generation efficiency of the generator 1200 is maximized.

In addition, the conventional tidal current or current generator is divided into a floating type or a mounting type according to an installation method. Since it is fixed and placed in a floating state at a certain depth in the water, it can be seen that the floating type and the mounting type are mixed.

The generator 1200 according to an embodiment of the present invention is configured to generate electric power using the flow of an ocean current.

The generator 1200 may include a turbine that generates electric power by rotating a rotating body using the flow of a fluid. According to the type of turbine included in the generator 1200, the generator 1200 according to the present embodiment may be divided into a helical type, a horizontal axis turbine (HAT) type, and a vertical axis turbine (VAT) type. .

However, the generator 1200 according to an embodiment of the present invention does not necessarily include a turbine. If the generator 1200 is configured to only generate power using the flow of a fluid in water without using a turbine, it may include other components than the turbine.

Meanwhile, the generator 1200 according to an embodiment of the present invention further includes a transmission (not shown). The transmission is mounted inside the generator 1200 and may be composed of Electronic Speed Controls (ESC).

The generator 1200 may change the rotational speed of the propeller 1300 according to a change in the direction or speed of the current flow by the transmission.

The propeller 1300 according to an embodiment of the present invention is connected to the drive shaft 1202 of the generator, and is located at one side of the generator 1200 . In addition, the propeller 1300 may include at least two or more blades 1301 , 1302 , 1303 .

The blades 1301 , 1302 , and 1303 of the propeller preferably have smooth surfaces in order to avoid cavitation, that is, cavitation, which may cause performance degradation during rotation.

A portion in which the blades 1301, 1302, 1303 are located close to the drive shaft 1202 of the generator is called a blade root, and the blades 1301, 1302, 1303 that are located farthest from the drive shaft 1202 of the generator are referred to as the blade root. The tip is called a blade tip.

When the blades 1301 , 1302 , and 1303 rotate, the tangential velocity at the blade root is relatively slower than that of the blade tip. Accordingly, the blades 1301, 1302, and 1303 receive an optimal angle of attack with respect to the flow of the fluid, that is, the flow of the ocean current to generate higher lift, and to maximize power generation efficiency, the blade 1301 from the blade root toward the blade tip. , 1302, 1303) is preferably manufactured in a twisted form.

In addition, in order to prevent cavitation, it is preferable that the shape of the blade tip has a round path.

In addition to this, in order to prevent cavitation, the overall size of the blades 1301, 1302, and 1303 may be reduced in order to slow the rotation speed of the blade tip. In this case, in order to sufficiently generate lift for power generation, the number of blades 1301 , 1302 , 1303 included in the propeller 1300 is preferably more than two.

In addition, it is preferable that the cross-sectional shape of the blades 1301 , 1302 , 1303 is formed in an elliptical shape in order to cope with the change in the direction of the ocean current.

On the other hand, since the ocean current can all flow in the reverse direction opposite to the pitch forward direction or the pitch forward direction of the propeller 1300 depending on the situation of the deep sea floor, the propeller 1300 blades in response to the change in the direction of the ocean current It is configured to adjust the pitch angle of (1301, 1302, 1303).

Accordingly, the propeller 1300 according to the present embodiment may control the pitch angles of the blades 1301 , 1302 , and 1303 , regardless of the change in the flow of the ocean current, thereby maintaining the lift generating efficiency constant.

Meanwhile, the first line 1400 according to the present embodiment further includes a power line and a mooring line.

At this time, the power line is generally composed of a large-capacity power cable capable of transmitting and receiving power, and the mooring line may be composed of a wire or a shackle and a chain having a certain tensile strength.

The power line is coated by itself, and since it is electrically connected to the generator 1200, the power generated from the generator 1200 can be transferred to a storage 1810 located on land or at sea (refer to FIG. 2 ).

Meanwhile, the power line and the mooring line may be stacked by another outer covering to constitute one first line 1400 .

However, alternatively, the power line may be configured to serve as a mooring line. In this case, a wire serving as a mooring line may be disposed within the self-coating surrounding the power line.

Since one end 1400a of the first line is connected to the generator 1200 and the other end 1400b is connected to the mooring unit 1100, the generator 1200 can stay at a constant water depth in a constant sea area by the mooring unit 1100. . More specifically, one end 1400a of the mooring line included in the first line 1400 is connected to the generator 1200 , and the other end 1400b of the mooring line is connected to the mooring unit 1100 . In addition, one end 1400a of the power line included in the first line 1400 is electrically connected to the generator 1200 , and the other end 1400b of the power line is electrically connected to the second line 1500 .

Accordingly, one end 1500a of the second line is connected to the other end 1400b of the first line, and the other end (not shown) of the second line is connected to the storage 1810 located on land or sea. Accordingly, the power generated from the generator 1200 is transferred to the storage 1810 along the first and second lines 1400 and 1500 .

Such storage 1810 may also be referred to as a marine power station.

The second line 1500 includes the same power line as the power line constituting the first line 1400 , and may be formed in the form of a submarine cable disposed on the seabed 1 . Therefore, the second line 1500 may be configured as a power line by itself, and the power line of the second line 1500 is also protected by a covering, and when the second line is installed in the seabed, the second line inside the subsea pipe A line 1500 may be disposed.

The floating bodies 1600 according to this embodiment include at least two or more floating bodies 1601 and 1602, and each of the floating bodies 1601 and 1602 is a generator body 1201 and a drive shaft 1202 of the generator. is connected to

The floating body 1600 has sufficient buoyancy to maintain the generator body 1201 and the drive shaft 1202 at a constant depth of water, and the generator body 1201 and the drive shaft 1202 are connected to the seabed by the floating body 1600. 1), it floats in the water while maintaining a constant height.

On the other hand, when the propeller 1300 connected to the generator 1200 rotates by the ocean current, the buoyancy formed by the at least two or more floating bodies 1601 and 1602 prevents the rotation of the propeller 1300 by the seabed topography. In order not to receive it, it has enough buoyancy to form a height of at least 2-3 m from the seabed (1) to the tip of the blade.

Since the floating body 1600 floats while maintaining a constant depth of water in the fluid, fluid resistance may occur due to the shape of the floating body 1600, and this fluid resistance is dependent on the lift generated by the propeller 1300. will affect Therefore, the floating body 1600 is preferably formed in a spherical shape in order to minimize the fluid resistance due to the current.

Meanwhile, each of the floating bodies 1601 and 1602 is connected to the generator body 1201 and the drive shaft 1202 by at least two or more supporting structures 1601a and 1602a.

One supporting structure 1601a is connected to the generator body 1201 , and the other supporting structure 1602a is connected to the driving shaft 1202 . At this time, the support structure 1602a connected to the drive shaft 1202 may further include a bearing in the portion 1602b where the support structure 1602a is connected to the drive shaft 1202 so as not to interfere with the rotation of the drive shaft 1202 . can

Also, the supporting structures 1601a and 1602a may be composed of wires, chains, beams or rods. If, as shown in FIG. 2 , when the supporting structures 1601a and 1602a are formed of beams or rods, in order to minimize the resistance of the high-speed current, the cross-sectional shape of the beams or rods has a narrow streamline or oval shape. It is preferably formed in a cross-sectional shape.

Hereinafter, a deep-sea current power generation system according to an embodiment of the present invention will be described with reference to FIGS. 2 and 3 .

In describing the deep-sea current power generation system 100 according to an embodiment of the present invention, a detailed description of the same configuration as the deep-sea current generator 1000 according to an embodiment of the present invention may be omitted. In addition, the same components may be expressed or described using the same reference numerals.

2 is a view showing a deep-sea current power generation system 100 according to an embodiment of the present invention, and FIG. 3 is a view showing that a drill ship according to an embodiment of the present invention constructs a hole for installing a deep-sea generator on the seabed. .

Ocean current generation is possible even where the flow velocity is around 1.0 m/s, but in general, for economical electricity generation, areas with an average ocean current speed of 2.0 m/s or more are considered as promising areas.

However, the deep-sea current power generation system 100 according to the present embodiment generates power by arranging the ocean current generator 1000 in the deep sea floor ranging from 1,000 m to 4,000 m of water where the average speed of the ocean current is 2.0 m/s or more, so the production cost and Economical electricity generation is possible by appropriately controlling the supply unit price.

On the other hand, conventionally, when a current generator is installed in a place where the average speed of the ocean current is 2.0 m/s or more, the power generation output of up to 750 kW to 1,000 kW per unit generator is generated depending on the conditions of the seabed topography, the regional current flow shape and the current speed. designed to give

However, ocean current generators with a power generation capacity of 750 to 1,000 kW per unit generator can be said to have a fairly large capacity. It had to be more than 24m. In addition, in order for the power generation capacity to be 1,000kW, the blade diameter used in the generator had to be 27m or more.

That is, when the average current speed is 2.0 m/s, the diameter of the blades or blades used for power generation of the generator must be 20 m or more, and the depth of the seabed where such a current generator can be installed becomes deeper, so that the generator is located in the deep sea. had to install

In order to install the power generating unit housing and generating structure in an underwater environment where the current speed is as high as 2.0 m/s, it is necessary to wait for slack water, when the current speed of the day slows down. Therefore, it was very difficult due to the resistance of the current to build the foundation on which the generator would be installed and to install the current generator in that short time, and it cost a lot of money.

Accordingly, the deep-sea current power generation system 100 according to the present embodiment may include an installation device or an installation vessel for easily installing the deep-sea current generator 1000 on the seabed 1 as compared to the related art.

First, the deep-sea current power generation system 100 includes at least two or more deep-sea current generators 1001 to 1017 , a junction box 1700 , and a floating power station 1810 .

Since the configuration of the deep-sea current generator 1000 according to an embodiment of the present invention has already been described above, a description thereof will be omitted.

The junction box 1700 is also called a joint box, and is a box for connecting various wires to one place.

Each of the plurality of deep-sea current generators 1001 to 1017 is electrically connected to the junction box 1700 .

As shown in FIG. 2 , when all 17 deep-sea current generators 1001 to 1017 are installed in the sea area, if each deep-sea current generator is divided into first to 17th deep-sea current generators 1001 to 1017, the junction Two boxes 1700 may be installed. In this case, the junction box 1700 may be divided into first and second junction boxes 1700a and 1700b.

Referring to FIG. 2 , ten deep-sea current generators 1001 to 1010 are electrically connected to the first junction box 1700a by a second line 1500 . That is, the first to tenth junction boxes 1001 to 1010 are connected to the first junction box 1700a, and the eleventh to seventeenth deep sea current generators 1011 to 1017 are connected to the second junction box 1700b. do.

However, the number of deep-sea current generators that can be electrically connected to each junction box 1700 may vary in consideration of the power generation capacity per one deep-sea current generator 1000 and the total number of deep-sea current generators installed in the sea area. It is not limited to what is shown in 2 .

The junction box 1700 is electrically connected to the marine power station 1810 by a third line 1711, and collects all the power transmitted from each of the deep-sea current generators 1001 to 1017. The marine power station 1810. Alternatively, it can be transmitted to storage.

In this case, the third line 1710 is composed of a power line like the second line 1500, and in order to transmit all the power generated by each of the deep sea current generators 1001 to 1017 to the marine power station 1810, The second line 1500 may be configured as a larger capacity power cable.

On the other hand, when the junction box 1700 is configured in plurality like the first and second junction boxes 1700a and 1700b as shown in FIG. 2 , each of the junction boxes 1700a and 1700b is a fourth line 1711 . are electrically connected to each other by Like the third line 1710 , the fourth line 1711 is composed of a large-capacity power cable.

In addition, as shown in FIG. 2 , the first and second junction boxes 1700a and 1700b are connected by a fourth line 1711 , and the first junction box 1700a is connected by a third line 1710 . As connected to the marine power station 1810, a plurality of junction boxes 1700a, 1700b is connected to one junction box 1700a and only one junction box 1700a is connected to the marine power station 1810. The power generation system 100 may be configured. However, it is not limited to this configuration, and each of the junction boxes 1700a and 1700b may be individually connected to the marine power station 1810 .

The offshore power station 1810 is arranged to float on the sea, and is electrically connected to a power plant, a power transmission tower, and a substation on land by a separate submarine power cable (not shown). Accordingly, the offshore power station 1810 may transmit power generated from the deep-sea current generator 1000 to an onshore power plant, a power transmission tower, and a substation.

In addition, the marine power station 1810 may also include a storage capable of storing power by itself and a substation capable of converting voltage. Accordingly, the offshore power station 1810 may store the power generated from the deep-sea current generator 1000 . In this way, the marine power station 1810 is used for its own operation of the marine power station 1810, or the marine power station 1810 is docked (docking) to supply or charge power to the electric vessel 1900. used for

Meanwhile, the deep-sea current power generation system 100 according to the present embodiment further includes a drill ship 1800 and/or a generator installation vessel (not shown).

Referring to FIG. 3 , the drill ship 1800 may dredge a hole into which the mooring unit 1100 is to be inserted into the seabed 1 by using the mounted drilling equipment. By using the drilling rig of the drill ship 1800, a hole can be dredged from the water surface to the sea floor up to 10 km, so a hole in which the deep sea current generator 1000 will be installed can be dug in the deep seabed ranging from 1,000 m to 4,000 m. .

When the hole into which the mooring unit 1100 is to be inserted is dredged by the drill ship 1800, the generator installation vessel is equipped with equipment capable of installing the deep-sea current generator 1000 in the hole. Such generator installation equipment may also include subsea pipe dredgers for installing power lines on the seabed or remote-controlled unmanned submarines.

The deep-sea current power generation system 100 according to the present embodiment can install several current generators in the deep sea through which an ocean current of a certain speed or more flows using a drill ship 1800, and a power plant on land through a power line protected by a subsea pipe , power transmission towers, substations, or directly connected to facilities and electric ships requiring power.

In addition, since the deep sea current power generation system 100 according to this embodiment is installed in the deep sea of 1,000 m to 4,000 m of water where the average sea current velocity of 2.0 m/s is formed, the velocity change of the sea current is not large, and high efficiency power generation This is possible.

In the above, even though it has been described that all components constituting the embodiment of the present invention operate by being combined or combined into one, the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all the components may operate by selectively combining one or more. In addition, terms such as 'include', 'comprise', or 'have' described above mean that the corresponding component may be inherent, unless otherwise stated, so that other components are excluded. Rather, it should be construed as being able to further include other components. All terms including technical and scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms commonly used, such as those defined in the dictionary, should be interpreted as being consistent with the contextual meaning of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present invention.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

1: the seabed
2: sleep
100: deep-sea current power generation system
1000: deep sea current generator
1100: Mooring
1200: generator
1300: propeller
1400: first line
1500: second line
1600: floating body
1700: junction box
1800: drill ship
1900: Electric Ship

Claims (5)

a mooring part that is fixed by digging a certain depth into the seabed;
a generator equipped with a transmission and generating electricity using the flow of the ocean current;
a propeller connected to the drive shaft of the generator from one side of the generator;
a first line having one end connected to the generator and the other end connected to the mooring unit, transferring the power generated from the generator to a storage, and allowing the generator to be located within a certain range from the mooring unit;
a second line having one end electrically connected to the other end of the first line, the other end connected to the storage, and transferring the power generated from the generator to the storage; and
At least two or more floating bodies connected to the generator;
Each of the floats is connected to the main body of the generator and the drive shaft of the generator, the deep-sea current generator. delete The method according to claim 1,
The deep-sea current generator further comprising at least two or more supporting structures connecting the floats to the main body of the generator and the drive shaft of the generator, respectively. The method according to claim 1,
The gearbox is
A deep-sea current generator, which is an Electronic Speed Controls (ESC) capable of changing the rotational speed of the propeller according to a change in the current. The method according to claim 1,
It is electrically connected to the storage and the second line, is disposed between the storage and the second line, is electrically connected to other deep-sea current generators, and collects all the electric power transmitted from the other deep-sea current generators to the storage or A deep-sea current generator, further comprising at least one junction box capable of retransmission to the power station.

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