MXPA06013979A

MXPA06013979A - A system of underwater power generation.

Info

Publication number: MXPA06013979A
Application number: MXPA06013979A
Authority: MX
Inventors: Michael David Perry; Duncan Bartlett Gilmore; Raymond Lindsay Hope; Gary James Campbell; Melissa Louise Kruger; Carmen Patricia Keating
Original assignee: Atlantis Resources Corp Pte
Priority date: 2004-06-01
Filing date: 2005-06-01
Publication date: 2007-03-15
Also published as: MA28731B1; AP2006003865A0; IL179673A0; SG145762A1; JP2008501084A; KR20070026780A; AU2005250508A1; WO2005119052A1; EP1774169A1; NO20070022L; EA010327B1; AU2005250508B2; EA200602271A1; ECSP067119A; CA2569496A1; BRPI0511731A

Abstract

An underwater power generation system (10) comprising at least one continuous track (30); a plurality of carriages (60) that are movable around said track, at least one foil (40) attached to each of the carriages, said foils ale to be driven by a-water current; at least one line member connected to the carriages; at least one power take-off (50) operatively connected to said line member; wherein the driven foils cause the carriages to move around said track and hence cause movement of said line member to power said power take-off.

Description

A UNDERWATER ENERGY GENERATION SYSTEM FIELD OF THE INVENTION The invention relates to a system for generating underwater energy. In particular, although not exclusively, the invention relates to a system of converting kinetic energy of water into movement to electrical energy. BACKGROUND OF THE INVENTION The generation of clean energy has become a main interest due to the effects of warming 15 global. The generation of renewable clean energy has been developed using solar cells, wind turbines and wave turbines. However, an effective system for generating renewable energy has not yet been developed using ocean currents. 20 U.S. Patent No. 4,383,182 discloses an apparatus for generating power from ocean currents. The device has wings or blades and is anchored to the ocean floor. A number of precursors are coupled to the wing and are turned by the ocean current. The rotation of the propellers causes the rotation of a generator to generate electricity. The problem with this apparatus is that the apparatus is not easily moved to supply changes in the direction of ocean currents. In addition, power generation is dependent on the size and number of propellers to trap a specific area of current flow. U.S. Patent No. 4,163,904 discloses an underwater turbine plant for generating electric power using ocean currents. The turbine is driven by the flow of water flow through the blades of the turbine. Again, the level of electricity generated is proportional to the area of water that the turbine plant is capable of capturing. U.S. Patent No. 4,335,319 discloses a hydroelectric power apparatus that includes an energy house that contains an energy generator above the energy house, located above the surface of the water. A hydraulic turbine is lowered from the energy house when the ocean currents are sufficient to drive the turbine. The disadvantage with this apparatus is that energy is required to extend and retract the turbine. In addition, the area of ocean current that is used is equivalent to the entrance area of the turbine. U.S. Patent No. 5,440,176 describes a hydroelectric power plant similar to that of U.S. Patent No. 4,335,319 in which a series of turbines are extended and retracted depending on the speed of the ocean currents. Similar drawbacks exist with the power plant described in U.S. Patent No. 5,440,176 as with the apparatus described in U.S. Patent No. 4,335,319. U.S. Patent No. 6,109,863 describes a fully submersible apparatus for generating electricity. The apparatus includes a buoyant structure having a motor mounted thereto. A series of blades are connected to the motor. The blades are rotated with the ocean current to cause electricity to be generated. A disadvantage with this apparatus is that the generation of electricity is dependent on the area of current that the blades are capable of capturing. U.S. Patent No. 4,313,059 describes a system for generating electricity from ocean currents. The system uses two dredges or harrows that are connected to opposite ends of a cable. The middle part of the cable is wrapped around a generator. The dredges are lowered into the ocean and are moved from a dragging position to a non-dragging position for the alternating movement of the cable. The disadvantage with this system is that the generator must be able to generate power when it is rotated in both directions. In addition, the power supply is not constant since the generator is constantly changing directions. The British Patent Application 2, 214,239A discloses an apparatus for generating energy from natural fluid flows. The apparatus includes a continuous band having a number of blades. The band circumferentially surrounds a pair of cylinders that are operatively connected to drive a generator. The continuous band is oriented so that the flow of water through the blades drives the band and therefore rotates the cylinders. The problem with this apparatus is that the water flows through a front group of vanes and then through a further group of vanes over the continuous band. This creates turbulence of water in the water that passes through the back group of blades and therefore the efficiency of the apparatus is reduced.

OBJECTIVE OF THE INVENTION An object of the invention is to overcome or alleviate at least one or more of the above disadvantages or to provide the consumer with a useful or commercial choice.

DESCRIPTION OF THE INVENTION In one form, although it need not be the only or of course the widest form, the invention lies in an underwater power generation system comprising: at least one continuous sliding guide; a plurality of carriages that are moved around the sliding guide; at least one sheet coupled to each of the carriages, the sheets are capable of being driven by an aquatic current; at least one linear member connected to the carriages; at least one power outlet operatively connected to the linear member; wherein the blades or driven blades cause the carriages to move around the sliding guide and thus cause movement of the linear member to energize the power take-off.

At least one sheet substantially rotates within a plane that is substantially perpendicular to the flow of the water stream. The power supply can be operatively connected to a pump or generator or similar device. Additional features of the present invention will become apparent from the following detailed description.

BRIEF DESCRIPTION OF THE FIGURES To help understand the invention and to make it possible for a person skilled in the art to practice the invention, an embodiment of the invention will be described by way of example only, with reference to the accompanying drawings, wherein : Figure 1 shows a top view of an underwater power generation system according to a first embodiment of the present invention; Figure 2 shows a front view of the underwater power generation system of Figure 1; Figure 3 shows a side sectional view of the underwater power generation system of Figure 1; Figure 4 shows a side sectional view of the underwater power generation system of Figure 1; Figure 5 shows a top view of a slide guide shown in Figure 1; Figure 6 shows a cross-sectional view of the sliding guide along the line A-A; Figure 7 shows a cross-sectional view of the sliding guide along the line B-B; Figure 8 shows a top view of a wing reinforcement plate and a connecting arm; Figure 9 shows a front view of the wing reinforcement plate and a connecting arm shown in Figure 8; Figure 10 shows a side view of the connection arm of Figure 8; Figure 11 shows a front view of a film carriage assembly; Figure 12 shows a top view of the film carriage assembly of Figure 11; Figure 13 shows a side view of the film carriage assembly of Figure 11; Figure 14 shows a bottom view of the film carriage assembly of Figure 11; Figure 15 shows a detailed front view of the energy intake of the underwater power generation system; Figure 16 shows a detailed sectional view of energy of the underwater power generation system; Figure 17 shows a detailed side sectional view of energy of the underwater power generation system; Figure 18 shows a top view of an underwater power generation system, according to a second embodiment of the present invention; Figure 19 shows a front view of two drive units that are part of the underwater power generation system of Figure 18; Figure 20 shows a side view of an underwater power generation system of Figure 18; Figure 21 shows a top sectional view of underwater power generation; Figure 22 shows a side sectional view of the underwater power generation system of Figure 18; Figure 23 is a perspective view of a sheet carriage assembly with the sheet mounted to a slide rail; Figure 24 is a further perspective view of a sheet carriage assembly with the sheet mounted to a slide rail; Figure 25 is a front view of a sheet carriage assembly with the sheet mounted to a slide rail; Figure 26 is a rear view of a sheet carriage assembly with the sheet mounted to a slide rail; Figure 27 is a top sectional view of a sheet car assembly mounted to a slide according to Figure 25; Figure 28 is a side sectional view of the sheet carriage assembly mounted to a slide according to Figure 25; Figure 29 is a top view of an anchored power generation system of Figure 18; Figure 30 is a side view of an anchored power generation system of Figure 18; Figure 31 is a sectional side view of a cable; Figure 32 is a top view of an anchored funnel power generation system; Figure 33 is a side view of the power generation system, anchored with funnel; and Figure 34 is a front view of an anchored funnel power generation system.

DETAILED DESCRIPTION OF THE INVENTION Figures 1 to 4 show an underwater system 10 of power generation that uses water currents to produce electricity. The underwater power generation system 10 includes a structure or frame 20, a slide 30, a plurality of sheets 40 and an energy outlet 50. The structure 20 is formed from a main cylindrical body 21 with two arms of arcuate coupling 22. The main cylindrical body 21 is hollow and has a central fin 23 extending in a backward direction from the main cylindrical body 21. The lateral fins 24 are located on the sides of the main cylindrical body 21. The arched arms 22 they are used to hold the underwater system 10 of power generation. The cables (not shown) are coupled to the ends of each of the arched arms 22, and are anchored to the floor of an ocean or river to maintain the underwater power generation system in position. Alternatively, the cables are mounted to a bridge, boat or similar structure. The sliding guide support members 25 are engaged and extend outwardly from the main cylindrical body 21. The sliding guide support members 25 are used to mount the sliding guide 30. Each member 25 of Sliding guide support is formed from a sliding guide arm 26 and a slide guide support 27, the details of which are shown in Figure 17. Two bolt holes 28 are located through the support for coupling the sliding guide to the support 27. The sliding guide 30, shown in more detail in Figures 5 to 7, is oval in shape. The sliding guide 30 is formed from two lateral sliding guide plates 31, a lower sliding guide plate 32 and two L-shaped attached plates 33. The sliding guide 30, in cross section, is a channel of rectangular shape. Each of the sheets 40 is formed from two wings 41, shown in Figure 17, and a connecting arm 42. The two wings 41 are unfolded in a backward direction with respect to each other and are inclined in the direction towards down with respect to the connecting arm 42. The wings 41 are formed from glass fiber and are in a teardrop shape when viewed in cross section. Each wing has a wing reinforcing plate 43, shown in Figures 8 and 9, extending through the center of the wing 41. The blade connecting arm 42, shown in Figures 8, 9 and 10, is formed from a sheet connection plate 44 and two inclined connection wing plates 45. The wing connecting plates 45 are used to mount the respective reinforcing plates 45. The fiberglass molded around the reinforcement plates 43, from the plates 45 of wing connection and the upper part of the blade connection plate 44, to produce the blade and the associated wings. A series of holes 46 are located through the sheet connection plate 44. The holes 46 are used to mount the sheet at a desired angle with respect to the film carriage assembly 60. The film carriage assembly 60, shown in detail in Figures 11 to 14, is formed from a chain support member 70, two upper wheel assemblies 80 and two lower wheel assemblies 90. The chain support member 70 is formed from a C-shaped channel. A carriage connection plate 71 is coupled and extends upwardly from the chain support member 70. Each of the upper wheel assemblies 80 is formed from an upper shaft 81 having two upper wheels 82 mounted for rotation of the opposite opposite ends of the upper shaft 81. Each of the upper wheels 82 has a wheel channel 83 located inside the upper wheel. The washers 84 are located between the upper wheels 82 and the upper shaft 81. The carriage connection plate 71 is used to mount each upper shaft. Each upper shaft is pivotably mounted to the carriage connecting plate 71 by means of a coupling pin 85. Each of the lower wheel assemblies 90 is formed from a lower shaft 91 having a lower wheel 92 mounted for the rotation adjacent to the end of the lower shaft. The lower wheel 92 is a flat wheel. The chain support member 70 is used to mount the lower shaft 92. The washers 93 are located between the lower wheels 92 and the lower shaft 91, and the lower shaft 92 and the chain support member 70. A chain mounting member 73 is connected to the chain support member 70. The chain support member is connected to a drive chain 74. The drive chain 74 extends around the periphery of the slide 30. In use, the wheel channels of the upper wheels are placed on top of the side sliding guide plates 31, to allow the sheet carriage assembly 60 to run along the upper part of the channel 30. The lower wheels 92 run smoothly along the inner part of the channel 30. The lower wheels 92 are held within the channel by a lubrication strip 75 and prevent the upper wheels from derailing from the channel 30.

The upper shafts 81 pivot as the slide carriage assembly 60 moves around the arched section of the slide guide 30. FIG. 18 shows the shafts 81 pivoting as the slide carriage assembly 60 moves around the sections arches of the sliding guide 30. The power take-off 50 shown in Figures 15 and 16 includes a main gear 51 mounted to a main gear spindle 52. The main gear shaft 52 is mounted via the slide guide 30 and the main cylindrical body 21. The main gear shaft 52 is mounted adjacent to the intermediate portion of the arcuate section of the slide. The main gear 51 engages the drive chain 74 and is driven by the drive chain 74 as the carriage assembly 60 moves around the slide 30. The power take-off 50 also includes a lower gear 53 which is coupled to the opposite end of the main gear shaft 52 to that of the main gear 81. The lower gear 53 is located within the central wing 23. A speed increase assembly 100 is located adjacent to the power take-off. The speed increase assembly 100 includes a large speed increase gear 101 and a small speed increase gear 102, which are mounted to a speed increase axis 103. The speed increase axis 103 is mounted for rotation through the main cylindrical body 21. The speed increase gears 101 and 102 are located within the central fin 23. The small speed increase gear 102 is substantially smaller that the lower gear 53. The small gear of speed increase 102 is connected to the lower gear via a chain 104. The large gear 101 of increase in speed is of the same size as the lower gear. Two pump assemblies 110 and 120 are located adjacent to the assembly 100 of the speed assembly. Each pump assembly includes a respective pump gear 111 and 121 mounted to a respective pump shaft 112 and 122. Each respective pump shaft 112 and 122 is connected to and drives the pumps 114 and 124. The first pump assembly 110 also includes a transfer gear 113 which is mounted to the shaft 112 of the pump. The large speed increase gear 101 is connected to the first gear 111 of pump via a chain 115. The transfer gear 113 is connected to the second pump gear 121 by means of a chain 125. Each pump is connected to a turbine (not shown). The sheets 40 are coupled to the sheet carriage assembly 60 using two sheet engaging plates 47. The sheet coupling plates 47 are connected to the sheet connection plate 44 and the carriage connection plate 71. The angle of the sheet 40 is able to be adjusted using a series of holes located in the sheet connection plate 44. The angle of the sheets is determined by numerous elements such as the speed of the water and the direction of the water current. In use, the underwater power generation system 10 is located within a water stream, so that the slide 30 is substantially perpendicular to the water stream. The water stream acts on the sheets 40 and causes the sheets to drive the drive chain 74 around the slide 30. The drive chain 74 in turn drives the main gear 51, the main shaft 52 and the lower gear 53. The lower gear 53 drives the large speed increase gear 101, the small speed increase gear 102 and the speed increase axis 103. The rotational speed of the large speed increase gear 101, the small speed increase gear 102 and the speed increase axis 103 is substantially larger than that of the main gear 51, the main shaft 52 and the lower gear 53. The large speed increase gear 101 drives the first pump gear 111, the first pump shaft 112 and the transfer gear 113. The rotational speed of the first pump gear 111, the transfer gear 113 and the first shaft 112 The pump is substantially larger than that of the large gear 101 of speed increase, the small gear 102 of increase in speed and the axis 103 of increase in speed. The transfer gear drives the second pump gear 121 and the second pump shaft 122. The pump shafts 112 and 122 drive their respective pumps 114 and 124 which provide pressurized water to drive a turbine, to create electricity. The side wings 24 can be adjusted so that the rotation of the slide guide 30 by the sheets 40 does not cause destabilization. Figures 18 to 21 show an underwater system 210 of power generation that uses water currents to produce electricity, and also to desalinate water. The underwater power generation system 210 includes a structure 220, a slide guide 230, a plurality of sheets 240 and the power take-off 250. The structure 220 is similar to that shown in the previous embodiment, and is formed from a main body 221 having two arcuate arms 222 coupling. The main body 221 is hollow and shaped to reduce drag caused by water flowing past the body. The side flaps 224 are located on the sides of the main body 221. Tension wires 228 extend from the arcuate arms 222, towards the side flaps 224 and the main body 221, to provide additional support. A nose 229 extends outwardly from the main body 221 to direct the stream of water over the sheets 240. The support members 225 of the slide guide are engaged and extend outwardly from the main body 221. The slide guide support members 225 are used to mount the slide guide 230. Each slide guide support member 225 is formed from a slide guide arm 226 and a slide guide support 227 similar to that shown in the previous mode. The sliding guide 230 is again oval in shape. The sliding guide 230 is formed from a T-shaped metal rotated, simple, which is coupled to the slide guide support 227. Each of the sheets 240 is formed as described in the previous embodiment. Each blade 240 has two wings 241 and a connecting arm 242. The connecting arm 242 has a sheet connecting plate 244.

A sheetcarry assembly 260, shown in detail in Figures 23-27, is formed from a sheetcarry housing 270, two upper wheel assemblies 280 and two lower wheel assemblies 290. The sheet carriage housing 270 is formed from a C-shaped channel. The sheet engaging plates 247 extend upwardly from the sheet carriage housing. A drag reduction wing 271 covers a portion of the housing and reduces drag when the car passes through the water. Each of the upper wheel assemblies 280 is formed from an upper shaft 281, an upper wheel 282 and a pivot arm 283 of the upper wheel. The pivot arm 283 of the upper wheel is L-shaped and is coupled to the housing 270 of the leaf carriage by means of a pin 284 of the upper wheel pivot arm. The upper wheel pivot arm pin 284 allows the pivot arm 283 of the upper wheel to pivot with respect to the sheet carriage housing 270. The upper shaft 282 extends outwardly from the pivot arm 283 of the upper wheel, and rotatably mounts the upper wheel 282. Each of the upper wheels 282 has a wheel channel 285 located within the upper wheel 282.

Each of the lower wheel assemblies 290 is formed from a lower shaft 291, a lower wheel 292 and a lower wheel pivot arm 293. The lower wheel pivot arm 293 is L-shaped and is coupled to the housing 270 of the carriage. blade, via a pin 294 of pivot arm, lower wheel. The lower wheel pivot arm peg 294 allows the pivot arm 293 of the lower wheel to pivot relative to the housing 270 of the sheet carriage. The lower shaft 292 extends outwardly from the lower wheel pivot arm 293, and rotatably mounts the lower wheel 292. Each of the lower wheels 292 has a wheel channel 295 located within the lower wheel 292. In In use, the wheel channels 285 of the upper wheels 282 are placed on the upper part of the sliding guide 230 and the wheel channels 295 of the lower wheels 292 are placed on the bottom of the sliding guide, to allow the slide carriage assembly 260 runs along the upper part of the slide guide 230. The upper wheel pivot arm pegs 284 and the lower wheel pivot arm pegs 294 are pivoted according to the assembly 260 of sheet carriage moves around the arched section of the slide 230. As in the previous embodiment, the water acts on the sheets 240 to drive the carriages around the a slide guide 230. The power take-off 250 includes two main pulleys 251 which are mounted to the respective main pulley axes 252. A flat serrated band 253 extends around two main pulleys 251. The axes 252 of the main pulley are mounted via the main body 221. The link arms 254 are coupled to the flat toothed belt 253 and the housing 270 of the carriage. The main pulleys 251 are driven by the flat toothed belt 253 which in turn is driven by the sheet carriage assemblies 260 via the link arms 254. The main pulley shafts 252 are connected to the secondary drive trains 300, respectively . Each secondary drive train drives an alternator shaft 301 which is connected to an alternator 310. A heat exchanger 311 is associated with the alternator 310 to ensure that it does not occur upon heating. The alternators 310 are connected to 330 alternating current (AC) inverters to direct current (DC). The inverters 330 allow energy to be transmitted efficiently to, for example, a power network. An impeller 320 of water pump of Sea is connected to alternator shaft 302. The seawater pump impeller 320 drives a seawater pump shaft that connects to and drives a seawater pump 321. The salt water is pumped by the seawater pump through a desalinator (not shown) to provide fresh water. The seawater pump 340 is also connected to a group of accumulators 350 located adjacent to the side flaps 224. The accumulators are used to pivot the side flaps 224 via a respective hydraulic gate (not shown). The accumulators 350 make it possible for the side flaps 224 to be adjacent, without the need to operate the seawater pump 340 for small movements. An air compressor and an electric motor 360 are provided to adjust weights within the main body 221. Blow valves 361 allow water to flow in and out of the main body 221 by adjusting the amount of air located within the main body 221 via the air compressor. A pipe 362 is used to control the air flow provided by the air compressor to various sections of the main body 221. The speed sensors 370 are in various places on the structure 220. The speed sensors 370 provide information on the speed of the the current of water. A PLC 380 provides a control strategy for controlling the flow of water in and out of the main body 221. In addition, the PLC 380 controls the rotation of the side flaps 224 via the accumulators 350. In order to secure the frame 220 within a stream of water, the cables are coupled to the ends of each of the arched arms 222 via the anchor points, as shown in Figures 29 and 30. The cables 390 are also anchored via an anchor 400 to the ocean floor or of a river to maintain the underwater system 210 for power generation. There are three types of cables. There is a leading or leading wire 391 extending from the anchor point, the main cables 392 carrying a greater part of the load and the cables 393 waste deflectors that help to prevent large debris from hitting the sheets 240, and damaging the underwater system 210 of power generation. Figure 31 shows a sectional view of the cables 390. Each of the cables 390 includes a core 394 that carries the load, and the sheet or sheet 395 of cable to reduce water drag. The cable sheet 305 is able to rotate with respect to the core 394 so that the cable sheet is able to find a position of less drag with respect to the core 394 in the water stream. An adjustment balloon 410 is coupled to one end of the guidewire 392. The adjustment balloon 410 is coupled to a snorkel 420 to enable the air to be released from the balloon 410. Air is pumped into the balloon 410 from the air compressor. 360, to inflate the balloon 410. Again, the PLC controller 380 controls the amount of air located within the balloon. A GPS telemetry system 430, located adjacent to the end of the snorkel 420, transmits the operational details of the underwater power generation system 210, such as the speed of the water stream, the position of the structure 220 with respect to the current of water and the speed of the sheets to a ground-based operator. In addition, the GPS telemetry receives operational instructions such as the movement of the structure 220 to the left or to the right and / or the adjustment of the height and turning on or off the alternators and / or the seawater pump, sent by an operator based on land. In use, the underwater power generation system 210 is located within a water stream, so that the slide 230 is substantially perpendicular to the water stream. The stream of water acts on the sheets 240 and causes the sheets to move around the slide 230 and consequently drive the flat toothed belt 253. The flat toothed belt 253 in turn drives the main pulleys 251 and therefore the alternators 310 and the seawater pump 320. Once the seawater pump 340 has commenced operation, the accumulators 350 are filled to capacity so that the main fins 224 can be moved as desired. The PLC 380 receives the feedback from the speed sensors, and uses its control strategy to adjust the position of the structure to an optimum position within the aquatic current. The position of the structure is changed by the movement of the lateral fins 224, adjusting the amount of water inside the main body 211, and adjusting the amount of air inside the balloon. Figures 32 to 34 show a funnel 440 coupled to an underwater power generation system 210. The funnel 440 is tapered with a larger end of the funnel 440 located farther from the structure 220 and a smaller end of the funnel located adjacent the sheets 240. The water, as it passes through the funnel, increases in velocity and thus, in turn, the speeds of the sheets 240 are also increased. This increases the output of the alternators 330 and the seawater pump 340. The underwater power generation systems, detailed above, are environmentally friendly since they use natural water currents to create electricity without the creation of any pollution. The electricity produced is a source of renewable energy since water currents, such as those found in rivers, oceans and tides, frequently occur. The underwater power generation systems have all sheets that rotate substantially in a simple plane. The underwater power generation system is positioned so that the plane in which the sheets are located is perpendicular to the flow of the water stream. Therefore, less turbulence is created as the sheets are propelled by the water at the same instant, resulting in increased efficiency. An additional advantage of the path that is perpendicular to the flow of the water stream is that the sheets always provide a drive to the linear member as they pass along the entire path. It should be appreciated that various changes and modifications may be made to the described embodiment, without departing from the spirit or scope of the invention. Having described the foregoing invention, the content of the following claims is claimed as property:

Claims

1. An underwater power generation system, characterized in that it comprises: at least one continuous sliding guide; a plurality of carriages that are movable around the slide rail; at least one sheet or sheet attached to each of the carriages, the sheets are capable of being driven by an aquatic current; at least one linear member connected to the carriages; at least one power outlet operatively connected to the linear member; wherein the driven blades cause the carriages to move around the sliding guide, and therefore cause movement of the linear member to energize the power take-off.

2. The underwater power generation system according to claim 1, characterized in that at least one sheet rotates substantially within a plane that is substantially perpendicular to the flow of the water stream.

3. The underwater power generation system according to claim 1, characterized in that the power supply is operatively connected to a pump or generator or a similar device.

4. The underwater power generation system according to claim 1, characterized in that the sliding guide is mounted to a structure.

5. The underwater power generation system according to claim 4, characterized in that the structure includes a main cylindrical body, two arched arms and sliding guide supports.

6. The underwater power generation system according to claim 5, characterized in that each sliding guide support includes a sliding guide arm and a sliding guide support.

7. The underwater power generation system according to claim 1, characterized in that the sliding guide is formed from two lateral sliding guide plates, a lower sliding guide plate and two adjacent plates.

8. The underwater power generation system, characterized in that each sheet is formed of two wings and a connecting arm.

9. The underwater power generation system according to claim 1, characterized in that each carriage is formed from a linear support member, at least one upper wheel assembly and at least one lower wheel assembly.

10. The underwater power generation system according to claim 1, characterized in that each sheet is pivotably mounted to its respective carriage.

11. The underwater power generation system according to claim 1, characterized in that it also includes a speed increase assembly and at least one pump assembly, both driven by the linear member.

12. The underwater power generation system according to claim 1, characterized in that the linear member is a chain.

13. The underwater power generation system according to claim 5, characterized in that it also includes an air compressor and an electric motor, for adjusting the ballast within the main body. SUMMARY OF THE INVENTION An underwater system (10) of power generation comprising at least one sliding guide (30) is described; a plurality of carriage (60) that are movable around the slide, and at least one sheet or plate (40) coupled to each of the carriages, the sheets are to be driven by an aquatic current; at least one linear member connected to the carriages; at least one power take-off (50) operatively connected to the linear member, wherein the driven sheets cause the carriages to move around the sliding guide, and therefore cause movement of the linear member to energize the power take-off.