Wind-propelled System and Ship having the same

Abstract

A wind propulsion system according to the present invention may include: a support member formed on a deck; a stator vertically connected to the support member; a rotor formed to surround the outer side of the stator and rotatably connected to the stator; a magnetic member arranged along the inner surface of the rotor; and an induction member formed facing the magnetic member on the stator and generating an induced current by the magnetic member.

Description

Technology Field

[0001] The present invention relates to a wind propulsion system and a ship including the same. Background Technology

[0002] With the recent increase in interest in eco-friendly ships, there is a growing effort to reduce carbon emissions in large vessels, such as cargo ships, by using eco-friendly fuels or increasing fuel efficiency through hull shape improvements.

[0003] For example, a rotor (Magnus rotor) that can convert wind power into thrust in a desired direction by rotating directly using power can be used on ships.

[0004] The rotor consists of a stator formed vertically to the deck and a rotor provided in a cylindrical shape to surround the surface and upper surface of the stator, with adjustable rotational speed or direction, and can assist in the propulsion of the ship through the rotation of the rotor.

[0005] Generally, the rotor may include a disk that rotates with the rotor inside the rotor, a drive unit disposed inside the stator and providing power, and a rotating shaft that transmits the power of the drive unit to the rotor.

[0006] If the center of gravity of a rotor rotating around an axis deviates from the axis, it may rotate at an angle, posing a risk of damage to the axis or rotor and potentially causing vibration.

[0007] Conventional rotors used a method of adjusting the center of gravity balance by adding mass to the rotor; however, adding mass solely to adjust the center of gravity to the rotor had the problem of causing the drive unit to consume more power. (Prior Art) Korean Published Patent Application No. 10-2023-0046431 (Published April 6, 2023) The problem to be solved

[0008] The present invention was created to solve the problems of the prior art described above, and aims to provide a wind propulsion system and a ship including the same, which functions as an auxiliary generator by producing induced current while simultaneously adjusting the center of gravity balance by installing a magnetic part that forms a magnetic field to adjust the center of gravity balance of the rotor and installing an induction part on the stator facing the magnetic part. means of solving the problem

[0009] A wind propulsion system according to one embodiment of the present invention may include: a support member formed on a deck; a stator vertically connected to the support member; a rotor formed to surround the outer side of the stator and rotatably connected to the stator; a magnetic member arranged along the inner surface of the rotor; and an induction member formed facing the magnetic member on the stator and generating an induced current by the magnetic member.

[0010] Specifically, the magnetic part may be provided in multiple numbers, arranged at the same height relative to the support part, and arranged at equal intervals around the inner circumference of the rotor.

[0011] Specifically, it may further include an auxiliary power generation unit that receives an induced current generated in the induction unit by the rotation of the rotor, wherein the magnetic unit rotates around the circumference of the induction unit.

[0012] Specifically, the induction portion is formed in a column shape parallel to the height direction of the stator around the outer circumference of the stator, and the magnetic portion may be formed parallel to the height direction of the column shape.

[0013] Specifically, the magnetic part may be formed with a length corresponding to the height of the column shape of the induction part.

[0014] Specifically, the induction member is formed in the shape of a plate perpendicular to the height direction of the stator on the outer circumference of the stator, and the magnetic member extends toward the stator parallel to the plate shape on the inner circumference of the rotor and can be arranged offset from the induction member.

[0015] Specifically, the magnetic part may be formed such that at least a portion overlaps with the plate shape of the induction part.

[0016] Specifically, the induction members are provided in multiple numbers, and at least two of the multiple induction members are positioned above and below the magnetic member, respectively, so that the induction members and the magnetic member may be alternately positioned in the height direction of the rotor.

[0017] Specifically, the apparatus further includes a drive unit that provides power to enable the rotor to rotate relative to the stator; and a main power generation unit that supplies current to the drive unit, wherein the auxiliary power generation unit can transmit the induced current generated in the induction unit to the main power generation unit.

[0018] Specifically, it may include a vessel including the above-mentioned wind propulsion system. Effects of the invention

[0019] The wind propulsion system according to the present invention and the vessel including the same are equipped with a magnetic part that forms a magnetic field to adjust the center of gravity balance of the rotor and an induction part that faces the magnetic part on the stator, thereby allowing the system to adjust the center of gravity balance and simultaneously function as an auxiliary generator through the production of induced current. Brief explanation of the drawing

[0020] FIG. 1 is a side view of a ship including a wind propulsion system according to one embodiment of the present invention. FIG. 2 is a conceptual diagram of a wind propulsion system according to one embodiment of the present invention. FIG. 3 is an enlarged view of a wind propulsion system according to the first-1 embodiment of the present invention. FIG. 4 is an enlarged view of a wind propulsion system according to the first and second embodiments of the present invention. FIG. 5 is an enlarged view of a wind propulsion system according to the first-third embodiment of the present invention. FIG. 6 is an enlarged view of a wind propulsion system according to the first-fourth embodiment of the present invention. FIG. 7 is a cross-sectional view of a wind propulsion system according to the 2-1 embodiment of the present invention. FIG. 8 is a plan view of a wind propulsion system according to the 2-1 embodiment of the present invention. FIG. 9 is a cross-sectional view of a wind propulsion system according to the second-2nd embodiment of the present invention. FIG. 10 is a plan view of a wind propulsion system according to the second-2nd embodiment of the present invention. Specific details for implementing the invention

[0021] It should be noted that when assigning reference numbers to the components of each drawing in the specification, identical components are assigned the same number whenever possible, even if they are shown in different drawings. Furthermore, in describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions could unnecessarily obscure the essence of the invention.

[0022] For reference, the present invention includes a vessel equipped with a wind propulsion system as described below. In this case, the vessel is a concept that includes gas carriers, merchant vessels carrying cargo or people other than gas, FSRUs, FPSOs, bunkering vessels, offshore plants, etc.

[0024] FIG. 1 is a side view of a ship including a wind propulsion system according to one embodiment of the present invention.

[0025] Referring to FIG. 1, at least one wind propulsion system (1) according to one embodiment of the present invention may be provided on the deck (S) of a ship (100). The wind propulsion system (1) can help propel the ship (100) by directly rotating using power and converting wind into propulsion force.

[0026] The wind propulsion system (1) is formed vertically with respect to the deck (S) and multiple wind propulsion systems (1) can be arranged side by side. Multiple wind propulsion systems (1) can be positioned in front of the cabin and can be spaced apart at regular intervals so that the bow can be seen from the cabin.

[0027] In FIG. 1, the ship (100) is depicted as not having cargo loaded on the deck (S), but depending on the type of fuel tank, the fuel tank may be exposed on the deck (S) and cargo such as containers may be loaded on the deck (S).

[0028] The wind propulsion system (1) can be placed on the deck (S) of the ship (100) together with the cargo, and can be placed apart from the cargo by considering the fluid flow generated through the rotation of the wind propulsion system (1) since it provides propulsion to the ship (100) using the Magnus effect.

[0029] The wind propulsion system (1) can be placed on the deck (S) taking into account weight balance and movements such as rolling and pitching of the ship (100), and can be placed symmetrically with respect to the centerline of the width of the ship (100).

[0031] FIG. 2 is a conceptual diagram of a wind propulsion system according to one embodiment of the present invention.

[0032] Referring to FIG. 2, the wind propulsion system (1) may include a support member (10), a stator (20), a rotor (30), an end plate (40), and a guide member (70).

[0033] The support member (10) can be formed such that its lower surface contacts the deck (S) and its upper surface contacts the stator (20). The support member (10) is formed on the deck (S) of the ship (100) and can be fixed in position on the deck (S) by being joined to the deck (S) through welding or bolting.

[0034] The support member (10) protrudes at a certain height on the deck (S) and can support the stator (20) and rotor (30) placed on the upper surface. The support member (10) is formed in the shape of a circular or polygonal column and can be formed to simply support the stator (20) and rotor (30) without a part being open.

[0035] In another embodiment of the present invention, the support member (10) may include a bridge shape, and the space between the bridge shapes may be open, allowing fluid flow through the open portion and enabling movement of users, thereby facilitating maintenance.

[0036] The stator (20) is vertically connected to the support member (10) and may include a drive member (60) inside. The stator (20) may be formed at a height lower than that of the rotor (30) to support the interior of the rotor (30). The outer surface of the stator (20) may be formed through a plurality of assemblies or may be formed as a truss structure with an open outer surface.

[0037] A drive unit (60) is installed on one side of the stator (20), and the other side, opposite to the one side, can be positioned on a support unit (14). A guide bearing can be formed around the stator (20), and the guide bearing can be formed adjacent to the other side of the stator (20).

[0038] The stator (20) may be formed in a cylindrical shape to resemble the rotor (30) or may be formed in a polygonal prism shape for ease of manufacturing, so the external shape of the stator (20) is not limited to a cylinder.

[0039] The driving unit (60) can be coupled with the disk (50) of the rotor (30) and can be positioned on one side of the stator (20).

[0040] The drive unit (60) generates power on its own to enable the disk (50) and the rotor (30) to rotate. When the disk (50) rotates by the drive unit (60), the rotor (30) connected to the disk (50) can rotate. The drive unit (60) can provide the generated power to the rotor (30) through the disk (50) to enable the rotation of the rotor (30).

[0041] The drive unit (60) may include a motor and a VFD (variable frequency drive) to control the initiation of rotation, rotational speed, and direction of the rotor (30). The rotational speed and direction of the rotor (30) may vary depending on the operation method of the drive unit (60).

[0042] In FIG. 2, the driving unit (60) is shown as being densely arranged on one side of the stator (20), but it may be separated into multiple layers according to the height direction of the stator (20).

[0043] The rotor (30) can be rotatably coupled to the stator (20).

[0044] The rotor (30) is formed to surround the outer side of the stator (20) and may have a larger cross-sectional area than the stator (20). The rotor (30) rotates around the stator (20) as an axis and can assist in the propulsion of the vessel (100) by utilizing the Magnus effect.

[0045] The rotor (30) is formed with an open upper and lower section, and an end plate (40) is installed on the upper section, and a stator (20) can be inserted through the open lower section.

[0046] The rotor (30) has a hollow interior and a stator (20) is positioned inside it, and can be connected to the stator (20) through a disk (50). The rotor (30) is rotatable relative to the stator (20), and whether it rotates can be determined by the operation of the drive unit (60).

[0047] The stator (20) can act as a support for the rotor (30), and the rotor (30) can rotate relative to the stator (20) to change the flow of fluid.

[0048] The rotor (30) may be spaced apart from the support member (10) so that it can rotate relative to the stator (20) and the support member (10). A guide member (70) is formed in the area of ​​the rotor (30) adjacent to the support member (10) to assist in the rotation of the rotor (30).

[0049] The end plate (40) can be coupled to the open upper portion of the rotor (30) and may have a cross-sectional area larger than that of the rotor (30). Generally, the end plate (40) may be formed to be twice the diameter of the rotor (30), but is not limited to specific dimensions if the diameter of the end plate (40) is formed to be larger than the diameter of the rotor (30).

[0050] The end plate (40) can cap the upper part of the rotor (30) to prevent air inside the rotor (30) from flowing through the upper part.

[0051] The disk (50) may be formed across the interior of the rotor (30) and may be formed perpendicular to the height direction of the rotor (30). The disk (50) may have a shape corresponding to the inner surface of the rotor (30), for example, in the shape of a disc, and may be connected to the inner surface of the rotor (30).

[0052] The disk (50) can be positioned at a height higher than that of the stator (20) inserted into the rotor (30) and connected to the upper part of the stator (20). The disk (50) can be connected to a drive unit (60) installed on the stator (20) and can rotate by receiving power from the drive unit (60).

[0053] The disk (50) rotates by the power of the drive unit (60), and the rotor (30) connected to the disk (50) rotates together, thereby allowing the power of the drive unit (60) to be transmitted to the rotor (30). The disk (50) and the rotor (30) can be rotated by the drive unit (60) around the stator (20) as an axis.

[0054] The guide section (70) may include a guide bearing (not shown) and a guide rail (not shown).

[0055] A guide bearing can be formed adjacent to the other side around the stator (20) and positioned close to the support member (10). The guide bearing engages with the guide rail of the rotor (30) to form a guide member (70) and can guide the rotation of the rotor (30).

[0056] The guide bearing is formed to be rotatable with respect to the stator (20) and can guide the rotor (30) which rotates by the power of the drive unit (60). The guide bearing is formed to suppress lateral movement when the rotor (30) rotates, thereby minimizing the shaking of the rotor (30).

[0057] The guide bearing can engage with a guide rail formed on the inside or inner surface of the rotor (30) around the stator (20).

[0058] The guide rail is formed inside the rotor (30) and can be formed in a ring shape along the inner surface of the rotor (30). The guide rail is formed at a position corresponding to the guide bearing of the stator (20) so that it can be positioned to come into contact with the guide bearing when the stator (20) and the rotor (30) are combined.

[0059] The guide bearing can rotate relative to the stator (20) while in contact with the guide rail, thereby rotating on the guide rail. The guide rail can assist in the rotation of the guide bearing.

[0060] The guide bearing can rotate relative to the stator (20) on the guide rail to correspond to the rotation of the rotor (30). When the rotor (30) rotates, the guide bearing can rotate on the guide rail.

[0061] The guide rail and guide bearing can guide the rotor (30) rotating around the stator (20) as an axis and can suppress the lateral movement of the rotor (30).

[0062] Guide bearings may be placed in the stator (20) and guide rails may be placed in the rotor (30), but the arrangement of guide bearings and guide rails may be interchanged.

[0063] For example, a guide bearing may be placed on the rotor (30) and a guide rail may be placed on the stator (20), so that the arrangement of the guide bearing and the guide rail is not limited as long as they are formed at corresponding heights.

[0065] FIG. 3 is an enlarged view of a wind propulsion system according to the first-1 embodiment of the present invention.

[0066] FIG. 3 is an enlarged view of the part where the disk (50) and the rotation axis (55) are connected inside the rotor (30), and a receiving area (120) may be formed on the disk (50) and a locking member (110) may be formed on the stator (20).

[0067] The rotation shaft (55) can be extended from within the stator (20) and protrude to the upper part of the stator (20) to be connected to the disk (50). The rotation shaft (55) can be rotated by the power of the drive unit (60), and the power of the drive unit (60) can be transmitted to the disk (50) to rotate the disk (50).

[0068] The rotating shaft (55) transmits power from the driving unit (60) to the disk (50) and the rotor (30), and the disk (50) and the rotor (30) can rotate together with the rotating shaft (55) by the power of the driving unit (60).

[0069] The receiving area (120) can be formed in a recessed shape that rotates together with the rotor (30).

[0070] Referring to FIG. 3, the receiving area (120) may be formed on the disk (50) and may be formed on the surface of the disk (50) facing the stator (20). The receiving area (120) may be recessed in a direction away from the stator (20) from the disk (50).

[0071] The receiving area (120) may be formed in a shape corresponding to at least the shape of the locking member (110) to accommodate the locking member (110). The receiving area (120) may have a cross-section wider than the cross-section of the locking member (110) to easily accommodate the locking member (110) when the rotor (30) rotates.

[0072] In FIG. 3, the receiving area (120) is depicted as being inserted into the disk (50) with a length smaller than the height of the disk (50), but is not limited thereto, and the receiving area (120) may be formed to penetrate the disk (50) so as to open a part of the disk (50).

[0073] Multiple receiving areas (120) may be formed, and the distances of the multiple receiving areas (120) from the rotation axis (55) may differ from each other. The multiple receiving areas (120) are not limited to being arranged at a constant distance from the rotation axis (55).

[0074] The locking member (110) may be positioned to face the receiving area (120) on the support member (10) or the stator (20) and may be movable toward the receiving area (120). The locking member (110) may be movable toward the receiving area (120), and the movement of the locking member (110) may be controlled by a control unit (not shown).

[0075] The locking member (110) may be formed in a protruding shape such as a rod, pin, or key, but is not limited thereto and may be formed in various shapes that can be combined with the receiving area (120).

[0076] The locking member (110) can be inserted into the receiving area (120) to prevent or hinder the rotation of the rotor (30). The locking member (110) can be formed on a support member (10) or a stator (20) whose position is fixed regardless of the rotation of the rotor (30), and in FIG. 3, the locking member (110) is formed on the stator (20).

[0077] The locking member (110) can be moved to the receiving area (120) by the control unit to prevent the rotation of the disk (50) in which the receiving area (120) is formed, thereby stopping the rotation of the disk (50) and the rotor (30).

[0078] The locking member (110) can be inserted into the receiving area (120) even when the rotor (30) is stopped, thereby fixing the position so that the rotor (30) cannot rotate.

[0079] The locking member (110) can move to the entire receiving area (120) while maintaining a constant length, or its length can be extended toward the receiving area (120).

[0080] A plurality of locking members (110) may be formed and may be coupled to a plurality of receiving areas (120) simultaneously or sequentially to obstruct the rotation of the rotor (30). At least a portion of the locking member (110) may be inserted into the receiving area (120) to obstruct the rotation of the rotor (30), and may also pass through the receiving area (120) and protrude onto the disk (50).

[0081] The control unit can control the movement and movement distance of the locking member (110).

[0082] The control unit can control multiple locking members (110) to move simultaneously or sequentially, and can control some of the locking members (110) to move.

[0083] The control unit can control the movement of each locking member (110) positioned at different distances from the rotation axis (55). The control unit can select a receiving area (120) into which the locking member (110) is inserted according to the rotational speed of the rotor (30).

[0084] The control unit can move the locking member (110) corresponding to the receiving area (120) formed at a distance close to the rotation axis (55) when the rotation speed of the rotor (30) is relatively high.

[0085] The receiving area (120) formed at a distance from the rotation axis (55) can travel a relatively longer distance than the receiving area (120) formed at a close distance during a certain period of time.

[0086] When the disk (50) and the rotor (30) rotate around the rotation axis (55), the further they move from the center, which is the rotation axis (55), the longer the distance traveled over a certain period of time can be.

[0087] For example, if the rotor (30) rotates in a circular shape around the rotation axis (55), the length of the arc can be increased as the radius from the center increases.

[0088] If the rotor (30) is formed as a rigid body and rotates as a whole, the arc length increases as it moves away from the center, which is the axis of rotation (55), so that it rotates over a relatively long distance and the rotation speed can be increased.

[0089] Therefore, if the rotational speed of the rotor (30) is relatively high, it may be easier to insert the locking member (110) into the receiving area (120) formed closer to the rotation axis (55) than into the receiving area (120) formed far from the rotation axis (55).

[0090] The control unit can move the locking member (110) toward the receiving area (120) by taking into account the distance between the rotation axis (55) and the receiving area (120) along with the rotation speed of the rotor (30).

[0092] FIG. 4 is an enlarged view of a wind propulsion system according to the first and second embodiments of the present invention.

[0093] The following embodiments 1-2 to 1-4 are described with a focus on the differences compared with embodiment 1-1. In FIG. 4, the receiving area (120) and the locking member (110) may be positioned relatively far from the rotation axis (55) compared to FIG. 3.

[0094] The stator (20) can be formed in various shapes, and in FIG. 4, the stator (20) can be formed in a shape where the central region where the rotation axis (55) is formed protrudes upward and the peripheral region adjacent to the central region bends downward.

[0095] The receiving area (120) is formed on the disk (50) and can be formed in a similar overall shape even if the distance from the rotation axis (55) changes, but the locking member (110) is formed on the stator (20) and its length can change if the distance from the rotation axis (55) changes.

[0096] The locking member (110) is positioned far from the rotation axis (55) and formed to have a relatively long length, and can be positioned facing the receiving area (120). Although a pair of locking members (110) are shown as being formed symmetrically with respect to the rotation axis (55), they are not limited thereto, and each locking member (110) can be positioned at different distances with respect to the rotation axis (55).

[0098] FIG. 5 is an enlarged view of a wind propulsion system according to the first-third embodiment of the present invention.

[0099] In FIG. 5, the receiving area (120) may be formed on a rotating shaft (55) connected to the disk (50), and the locking member (110) may be positioned facing the receiving area (120).

[0100] The receiving area (120) can be formed to be drawn in toward the center of the rotatable axis (55).

[0101] Since the rotation shaft (55) rotates by the driving unit (60) and rotates the disk (50) and rotor (30) connected to the top, when the locking member (110) is inserted into the receiving area (120) formed on the rotation shaft (55), the rotation of the rotor (30) can be effectively stopped.

[0102] When the rotor (30) rotates, the rotation axis (55) also rotates, and the receiving area (120) formed on the rotation axis (55) also rotates. If it is necessary to stop the rotation of the rotor (30), the locking member (110) can move toward the rotation axis (55) where the receiving area (120) is formed and press the rotation axis (55).

[0103] The rotation shaft (55) can be slowed down through friction with the locking member (110), and when the locking member (110) comes into contact with the receiving area (120) formed on the rotation shaft (55), it can be pulled into the receiving area (120) and stop the rotation of the rotor (30).

[0104] Referring to FIG. 5, the receiving area (120) may be formed in multiple numbers along the height direction of the rotation axis (55), and the locking member (110) may be formed at the same height as the receiving area (120). The locking member (110) may be installed outside or inside the stator (20) depending on the location where the receiving area (120) is formed.

[0105] The locking member (110) installed inside the stator (20) can be supported at the same height as the receiving area (120) through the support member (10).

[0106] The locking member (110), formed at different heights, is moved simultaneously toward the receiving area (120) by the control unit, so that catching can occur simultaneously at different heights with the rotation axis (55).

[0108] FIG. 6 is an enlarged view of a wind propulsion system according to the first-fourth embodiment of the present invention.

[0109] In FIG. 6, the locking member (110) may be formed to face the rotor (30) at a fixed position support member (10), and the receiving area (120) may be formed to be inserted in the height direction of the rotor (30) at one end of the rotor (30) facing the support member (10).

[0110] The locking member (110) is formed on the top or inside of the support member (10), and the receiving area (120) can be formed around the rotor (30). Although the rotor (30) and the support member (10) are shown as being in contact in FIG. 6, the rotor (30) may be spaced apart from the support member (10) for the rotation of the rotor (30).

[0111] The receiving area (120) is formed with a cross-section larger than that of the locking member (110) so that the locking member (110) can be easily inserted into the receiving area (120). The receiving area (120) is formed in multiple numbers along the circumference of the rotor (30) so that a locking can occur with multiple locking members (110).

[0112] When multiple receiving areas (120) are densely formed around the rotor (30), a locking member (110) is inserted into the multiple receiving areas (120) and caught, so that when the rotation of the rotor (30) is stopped, a large load may be generated in the densely formed receiving areas (120).

[0113] To prevent this, a plurality of receiving areas (120) are arranged symmetrically with respect to the center of the rotor (30), so that the load generated when the rotor (30) stops rotating is symmetrically formed, thereby preventing the load from being generated in a biased manner.

[0114] The locking member (110) moves upward toward the lower part of the rotor (30) where the receiving area (120) is formed in the support member (10), thereby blocking the movement of the lower part of the rotor (30) to stop the rotation of the rotor (30) or prevent the rotation of the rotor (30).

[0115] The receiving area (120) may be formed so as not to overlap with the guide portion (70) formed inside the rotor (30). The guide portion (70) may include a guide rail and a guide bearing so that the rotor (30) rotates smoothly relative to the stator (20).

[0116] The receiving area (120) is formed spaced apart from the guide rail and guide bearing, so that the locking member (110) can be prevented from coming into contact with and being damaged by the guide rail and guide bearing.

[0118] FIG. 7 is a cross-sectional view of a wind propulsion system according to the 2-1 embodiment of the present invention.

[0119] The wind propulsion system of FIG. 7 may include a support member (10), a stator (20), a rotor (30), a magnetic member (130), an induction member (140), and an auxiliary power generation member (150).

[0120] The magnetic section (130) is arranged along the inner surface of the rotor (30) and may include a permanent magnet that provides a magnetic field. The magnetic section (130) may be formed between the outer surface of the stator (20) and the inner surface of the rotor (30), and the magnetic section (130) may rotate together with the rotor (30).

[0121] The magnetic section (130) is arranged discontinuously on the inner surface of the rotor (30), so that the magnetic field acting on the induction section (140) can change due to the rotation of the rotor (30).

[0122] The magnetic part (130) is provided in multiple numbers, and the multiple magnetic parts (130) can be spaced apart at the same height relative to the support part (10).

[0123] Referring to FIG. 7, the magnetic section (130) may be formed in the shape of a column parallel to the height direction of the stator (20) or rotor (30). The height of the magnetic section (130) may be formed to a height corresponding to at least the height of the induction section (140).

[0124] The magnetic members (130) are arranged at regular intervals inside the rotor (30) and can serve to balance the center of gravity of the rotor (30). When the rotor (30) rotates relative to the stator (20), if the center of gravity of the rotor (30) moves away from the stator (20), the rotor (30) can rotate in a tilted state relative to the stator (20).

[0125] The magnetic part (130) reduces vibration of the rotor (30) by applying a certain weight to the rotor (30) to adjust the center of gravity balance of the rotor (30), and the thickness or width of the magnetic part (130) may vary depending on the shape of the rotor (30).

[0126] Multiple magnetic parts (130) may be formed at the same height, but the length and thickness in the direction in which the magnetic parts (130) protrude toward the stator (20) or the width in the direction in which the magnetic parts (130) are arranged may differ.

[0127] The induction section (140) is formed facing the magnetic section (130) in the stator (20), and an induced current can be generated by the magnetic section (130). The induction section (140) can be positioned facing the magnetic section (130) that forms a magnetic field.

[0128] The induction part (140) is formed of a conductor so that an induced current can be generated, and may include, for example, a copper plate, a coil, etc.

[0129] Referring to FIG. 7, the guide portion (140) may be formed in a shape that surrounds the outer surface of the stator (20). The guide portion (140) may be formed in a column shape parallel to the height direction of the stator (20) around the outer surface of the stator (20).

[0130] The induction part (140) is formed on a stator (20) that is fixed in position on a support part (10) and does not rotate, and the rotor (30) and magnetic part (130) can rotate around the induction part (140).

[0131] When the magnetic part (130) rotates around the induction part (140) by the rotor (30), a change in the magnetic field formed in the magnetic part (130) occurs in the induction part (140), and an induced current can be generated. An induced current can be generated in the induction part (140) when the rotor (30) rotates.

[0132] The induction section (140) can be positioned at a location corresponding to the position of the magnetic section (130), so that if the height of the magnetic section (130) relative to the support section (10) changes to adjust the center of gravity of the rotor (30), the height of the induction section (140) relative to the support section (10) can also change.

[0133] The induction unit (140) can transmit the induced current generated by the magnetic unit (130) to the auxiliary power generation unit (150).

[0134] The auxiliary power generation unit (150) can receive induced current generated in the induction unit (140) by the rotation of the rotor (30) causing the magnetic unit (130) to rotate around the induction unit (140). The auxiliary power generation unit (150) can be formed inside the stator (20) and can transmit induced current to the main power generation unit (not shown) placed on the ship (100).

[0135] The main power generation unit can correspond to a generator installed on the ship (100), so that the generator existing on the ship (100) can be used without installing additional equipment. The main power generation unit can supply current to a drive unit that rotates the rotor (30), and the induced current generated in the induction unit (140) by the rotation of the rotor (30) can be transmitted to the main power generation unit through the auxiliary power generation unit (150).

[0137] FIG. 8 is a plan view of a wind propulsion system according to the 2-1 embodiment of the present invention.

[0138] FIG. 8 is a plan view of A-A' of FIG. 7, and shows a stator (20), a rotor (30), a magnetic section (130), and an induction section (140).

[0139] The magnetic section (130) may be formed in the shape of a column extending in the height direction of the rotor (30) and arranged in equal intervals within the rotor (30). In FIG. 8, the cross-section of the magnetic section (130) is shown as circular, so the magnetic section (130) may be formed in the shape of a cylinder, but the shape of the magnetic section (130) is not limited thereto.

[0140] The induction section (140) may be formed in the shape of a column extending in the height direction of the stator (20) from the outer circumference of the stator (20). The induction section (140) may be formed as a single component having a continuous body and may be positioned to face the magnetic section (130).

[0141] The magnetic part (130) rotates together with the rotor (30) when the rotor (30) rotates, and rotates around the stator (20) and the induction part (140). When the magnetic part (130) rotates, the shortest distance to the induction part (140) changes, so a change in the magnetic field occurs, and an induced current can be generated in the induction part (140).

[0143] FIG. 9 is a cross-sectional view of a wind propulsion system according to the second-2nd embodiment of the present invention.

[0144] The following 2-2 embodiment is described with a focus on the differences compared to the 2-1 embodiment.

[0145] In FIG. 9, the magnetic part (130) and the induction part (140) have different shapes compared to FIG. 7 and may be positioned at different locations inside the rotor (30).

[0146] The magnetic part (130) may extend from the inner surface of the rotor (30) toward the stator (20) to rotate together with the rotor (30). The magnetic part (130) may be formed in a shape perpendicular to the height direction of the rotor (30) around the inner surface of the rotor (30).

[0147] The magnetic section (130) includes permanent magnets that form a magnetic field and may be spaced apart from each other at regular intervals. The magnetic section (130) may be formed on a donut-shaped support with an open central region.

[0148] The magnetic part (130) may be spaced apart on a support that extends vertically with respect to the inner surface of the rotor (30). The magnetic part (130) may extend from the inner surface of the rotor (30) in a manner that surrounds the stator (20).

[0149] The guide portion (140) can be formed in the shape of a plate perpendicular to the height direction of the stator (20) on the outer circumference of the stator (20) to which the position is fixed.

[0150] The induction section (140) can be spaced apart from the rotor (30) so as not to interfere with the rotation of the rotor (30).

[0151] The induction section (140) may be positioned apart from the magnetic section (130). In FIG. 9, a plurality of induction sections (140) may be positioned above and below the magnetic section (130), but a single induction section (140) may also be positioned above or below the magnetic section (130).

[0152] The induction section (140) is formed so that at least a portion overlaps with the magnetic section (130), and can generate an induced current through a change in the magnetic field that occurs when the magnetic section (130) rotates together with the rotor (30).

[0153] As shown in Fig. 9, if a plurality of induction units (140) are provided, at least two of the plurality of induction units (140) may be positioned on the upper and lower sides, respectively, with respect to the magnetic unit (130).

[0154] At least two induction sections (140) are arranged to cover the magnetic section (130) on both sides, so that the induction section (140) and the magnetic section (130) can be alternately arranged in the height direction of the rotor (30).

[0155] The induction unit (140) is electrically connected to the auxiliary power generation unit (150) and can supply the generated induction current to the auxiliary power generation unit (150).

[0157] FIG. 10 is a plan view of a wind propulsion system according to the second-2nd embodiment of the present invention.

[0158] FIG. 10 is a plan view of B-B' of FIG. 9, and shows a stator (20), a rotor (30), a magnetic part (130), and an induction part (140).

[0159] A plurality of magnetic members (130) are arranged at equal intervals inside the rotor (30) and can be formed in a direction perpendicular to the height direction of the rotor (30).

[0160] The magnetic part (130) can be supported by a plate-shaped support (not shown in the drawing) and can be placed on the upper surface of the support.

[0161] The guide portion (140) can be formed in the shape of a plate perpendicular to the height direction of the stator (20) around the outer circumference of the stator (20).

[0162] In FIG. 10, a portion of the magnetic part (130) is shown obscured by the induction part (140), which may mean that at least a portion of the magnetic part (130) is formed to overlap with the plate shape of the induction part (140).

[0163] The magnetic part (130) may have different lengths extending from the inner surface of the rotor (30).

[0164] The lengths of the multiple magnetic parts (130) may differ from each other, and the size of the portion that overlaps with the plate shape of the induction part (140) may differ from each other.

[0165] The magnetic part (130) can rotate parallel to the induction part (140) on the upper or lower side of the induction part (140) when the rotor (30) rotates. An induced current can be generated in the induction part (140) of the conductor due to the change in the magnetic field generated by the rotation of the magnetic part (130).

[0166] The present invention may include a vessel (100) including the above wind propulsion system (1).

[0167] The present invention is not limited to the embodiments described above, and may include a combination of the above embodiments or a combination of at least one of the above embodiments and known technology as another embodiment.

[0168] Although the present invention has been described in detail through specific embodiments, this is for the purpose of specifically explaining the invention, and the invention is not limited thereto. It will be apparent that modifications or improvements can be made by those skilled in the art within the technical scope of the invention.

[0169] All simple variations or modifications of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be clarified by the appended claims. Explanation of the symbols

[0171] 1: Wind propulsion system 10: Support member 20: Stator 30: Rotor 40: End plate 50: Disk 55: Rotation axis 60: Driving unit 70: Guide Section 100: Ship 110: Locking member 120: Receiving area 130: Magnetic Section 140: Induction Section 150: Auxiliary Power Generation Unit S: Deck

Claims

Claim 1 A wind propulsion system comprising: a support member formed on a deck; a stator vertically connected to the support member; a rotor formed to surround the outer side of the stator and rotatably connected to the stator; a magnetic member arranged along the inner surface of the rotor; and an induction member formed facing the magnetic member in the stator and generating an induced current by the magnetic member, wherein the induction member is formed in a column shape parallel to the height direction of the stator around the outer surface of the stator, and the magnetic member is formed parallel to the height direction of the column shape. Claim 2 A wind propulsion system according to claim 1, wherein the magnetic part is provided in multiple numbers, arranged at the same height relative to the support part, and arranged at equal intervals around the inner circumference of the rotor. Claim 3 A wind propulsion system further comprising, in paragraph 2, an auxiliary power generation unit that receives an induced current generated in the induction unit by the rotation of the rotor, wherein the magnetic unit rotates around the circumference of the induction unit. Claim 4 delete Claim 5 In claim 1, the magnetic part is a wind propulsion system formed with a length corresponding to the height of the column shape of the induction part. Claim 6 A wind propulsion system comprising: a support member formed on a deck; a stator vertically connected to the support member; a rotor formed to surround the outer side of the stator and rotatably connected to the stator; a magnetic member arranged along the inner surface of the rotor; and an induction member formed facing the magnetic member in the stator and generating an induced current by the magnetic member, wherein the induction member is formed in a plate shape perpendicular to the height direction of the stator around the outer surface of the stator, and the magnetic member extends toward the stator around the inner surface of the rotor parallel to the plate shape and is arranged to be offset from the induction member. Claim 7 In claim 6, the above-mentioned magnetic part is formed such that at least a portion overlaps with the plate shape of the above-mentioned induction part, in a wind propulsion system. Claim 8 In claim 7, the induction unit is provided in multiple numbers, and at least two of the multiple induction units are positioned above and below the magnetic unit, respectively, so that the induction unit and the magnetic unit are alternately positioned with respect to the height direction of the rotor, in a wind propulsion system. Claim 9 In paragraph 3, the wind propulsion system further comprises: a drive unit that provides power to enable the rotor to rotate relative to the stator; and a main power generation unit that supplies current to the drive unit, wherein the auxiliary power generation unit transmits the induced current generated in the induction unit to the main power generation unit. Claim 10 A vessel comprising the wind propulsion system according to any one of claims 1 to 3 and claims 5 to 9.

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