A rotary drum wind sail device applied to a marine mobile platform

Abstract

The application provides a rotary drum wind sail device applied to a marine mobile platform, and particularly relates to the technical field of rotary drum wind sail power generation, wherein the rotary drum wind sail device applied to the marine mobile platform comprises a rotary drum wind sail and a vertical shaft wind power assembly; the rotary drum wind sail is driven by a first driving element and is rotatably installed on the platform around a fixed shaft; the vertical shaft wind power assembly comprises a generator, an adjusting turntable and a plurality of straight blades; the bottom of the generator is arranged on the rotary drum wind sail, and the upper part of the generator is provided with a power input end; the adjusting turntable is driven by a second driving element and is rotatably installed on the power input end of the generator around the fixed shaft; the plurality of straight blades are respectively connected to the power input end of the generator in a radial direction and are spaced apart around the circumference of the adjusting turntable; the rotation of the adjusting turntable can operatively drive the plurality of straight blades to move between an unfolded position and a folded position in the radial direction; and the rotary drum wind sail device has the advantage of being capable of stabilizing power generation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rotating drum wind sails, in particular to a rotating drum wind sail device applied to offshore mobile platforms. BACKGROUND

[0002] The rotating drum wind sail, also known as a rotating cylinder wind sail, a wind power boosting rotor, etc., is a platform wind energy driving device different from traditional hard airfoil sails. It is different from the traditional sail shape, and the driving sail cylinder component is rotated in the wind to generate a force perpendicular to the wind speed direction, thereby providing a forward propulsion force for the ship body. As a new type of propulsion device, the rotating drum wind sail can adjust the rotating speed according to the wind direction at any time, and fully utilize the wind power. Although the existing rotating drum wind sail can play a role in assisting navigation and reducing fuel consumption, it still needs to provide additional power for the equipment driving the rotating drum wind sail to operate, so there is still a lot of room for improvement in energy saving.

[0003] At present, in some occasions, a scheme of arranging a vertical axis wind turbine on the top of the sail cylinder component is adopted, and the wind power received by the platform during navigation is converted into electric energy by the vertical axis wind turbine to supply power to the electric power equipment on the rotating drum wind sail. Although this scheme can reduce the energy consumption of the rotating drum wind sail to a certain extent, it has the following problems, i.e., the blades used on the vertical axis wind turbine are fixed blades and are always in an unfolded position. During the working stage of the wind turbine, the fluctuation of wind speed and the change of wind direction will cause the corresponding change of the driving torque on the blades, thereby causing the fluctuation of the power generation of the generator, and multiple negative effects on the generator itself and the power storage equipment. SUMMARY

[0004] Therefore, the embodiments of the present application provide a rotating drum wind sail device applied to offshore mobile platforms, which has the advantage of stable power generation.

[0005] The embodiment of the present specification provides a rotary drum wind sail device applied to a marine mobile platform, comprising: a rotary drum wind sail rotatably installed on the platform around a fixed shaft driven by a first driving member; a vertical shaft wind power assembly, comprising: a generator, the bottom of which is arranged on the rotary drum wind sail and the upper part of which has a power input end; an adjusting turntable, which is rotatably installed on the power input end of the generator driven by a second driving member; and a plurality of straight blades, which are respectively connected to the power input end of the generator in a radial direction and are spaced apart around the circumference of the adjusting turntable; wherein the adjusting turntable and the plurality of straight blades are movably connected, so that the plurality of straight blades are operatively driven to move in a radial direction between an unfolded position and a folded position through rotation of the adjusting turntable, the adjusting turntable has a plurality of cam sliding grooves extending in a radial direction, the plurality of straight blades correspond to the plurality of cam sliding grooves one by one and are connected to the corresponding cam sliding grooves through a cam sliding rod, and the adjusting turntable drives the plurality of cam sliding rods to slide in the corresponding cam sliding grooves, thereby driving the plurality of straight blades to move in a radial direction.

[0006] To optimize the above scheme, the following technical measures are taken:

[0007] As one of the embodiments, the cam sliding rod has a roller part extending towards the corresponding cam sliding groove, and the roller part is in rolling contact with the corresponding cam sliding groove.

[0008] As one of the embodiments, the rotary drum wind sail comprises: a driving base rotatably installed on the platform driven by the first driving member, and the generator is arranged on the driving base; and a sail drum component arranged on the driving base and surrounding the outside of the vertical shaft wind power assembly, and the upper end of the sail drum component has an opening part; wherein the vertical shaft wind power assembly and the sail drum component are configured to be relatively movable in a vertical direction, so that the vertical shaft wind power assembly is entirely arranged inside the sail drum component when the plurality of straight blades are in the folded position, or the vertical shaft wind power assembly is entirely exposed to the sail drum component from the opening part when the plurality of straight blades are in the unfolded position.

[0009] As one of the embodiments, the sail drum component comprises: a fixed sail drum, the lower end of which is arranged on the driving base and the upper end of which forms the opening part; a movable sail drum, which is telescopically connected to the fixed sail drum; and a lifting mechanism, which is used to operatively drive the movable sail drum to move up and down; wherein the vertical shaft wind power assembly is arranged inside the sail drum component when the movable sail drum is lifted, and the vertical shaft wind power assembly is exposed to the sail drum component from the opening part when the movable sail drum is lowered.

[0010] As one of the embodiments, the generator is supported on the driving base by a support rod extending in the vertical direction, a horizontal tray is mounted on the power input end of the generator, the second driving member is arranged on the tray, and the adjusting turntable is fixed on the output shaft of the second driving member.

[0011] As one of the embodiments, a limiting portion is formed on the tray, and the straight blades abut against the limiting portion in the radial direction in the folded position.

[0012] As one of the embodiments, the lifting mechanism comprises a fixing ring arranged on the inner wall of the fixed sail cylinder, a plurality of lifting lead screws arranged at intervals in the circumferential direction of the fixing ring, a plurality of nut seats matched with the lifting lead screws, and a third driving member in driving connection with the plurality of lifting lead screws, wherein the plurality of nut seats are fixedly connected with the movable sail cylinder, so as to drive the movable sail cylinder to move up and down along the lifting lead screws through the plurality of nut seats.

[0013] As one of the embodiments, a ring gear is rotatably mounted on the fixed sail cylinder, a first gear is mounted on the output shaft of the third driving member, the first gear is in meshing connection with the ring gear, and the ring gear is driven to rotate, a second gear is mounted on one end of each of the plurality of lifting lead screws, the plurality of second gears are in meshing connection with the ring gear, the plurality of second gears are driven to rotate through the rotation of the ring gear, and the plurality of lifting lead screws are synchronously driven to rotate.

[0014] As one of the embodiments, a horizontal connecting rod is arranged between the straight blades and the corresponding cam slide rods, and a guide portion is formed on the tray to receive and guide the radial movement of each of the plurality of connecting rods.

[0015] As one of the embodiments, the vertical-axis wind power assembly further comprises a wind speed and direction detection unit and a three-phase electric detection module, the wind speed and direction detection unit is mounted on the offshore mobile platform to detect the environmental wind speed and direction in real time, the three-phase electric detection module is connected to the power output end of the generator to detect the current and voltage output by the generator in real time, the second driving member has a driving shaft, the adjusting turntable is fixedly connected with the driving shaft, the second driving member has an electric control device for controlling the rotation angle of the driving shaft, and the wind speed and direction detection unit and the three-phase electric detection module are electrically connected with the electric control device.

[0016] Compared with the prior art, the above at least one technical solution adopted by the embodiments of the present application can achieve at least the following beneficial effects:

[0017] One, in the working phase of the wind power assembly, the position of the plurality of straight blades in the radial direction can be adjusted by operating the adjusting turntable, thereby adjusting the driving torque generated on each blade, balancing the fluctuation of the power generation of the generator caused by the change of wind speed and / or wind direction acting on the blades, thereby stabilizing the power generation of the generator within the rated range, and maintaining the working reliability and stability of the generator and the related power storage equipment.

[0018] Further, in the device, the cam slide rod connected to the blades slides in the corresponding cam slide groove on the adjusting turntable to drive the blades to move in the radial direction to adjust the position of the blades in the radial direction. Compared with the way of driving the blades to fold and unfold by moving the screw rod structure, the adjusting resistance is smaller and the adjusting efficiency is higher.

[0019] Further, in the device, the sail cylinder component and the vertical shaft wind power assembly are arranged to be relatively movable in the vertical direction, so that when the plurality of straight blades are in the folded position, the vertical shaft wind power assembly is accommodated in the sail cylinder component, which can effectively reduce the wind resistance when the offshore platform sails, thereby improving the stability and sailing efficiency of the platform in complex sea conditions. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 is a side structure schematic diagram of the rotating drum wind sail device in the first embodiment of the present application;

[0022] Figure 2 is an axonometric structure schematic diagram of the rotating drum wind sail device in the first embodiment of the present application;

[0023] Figure 3 is a side structure schematic diagram of the vertical shaft wind power assembly in the first embodiment of the present application;

[0024] Figure 4 is an upper structure schematic diagram of the vertical shaft wind power assembly in the first embodiment of the present application;

[0025] Figure 5 is a structure schematic diagram of the sail cylinder component in the first embodiment of the present application;

[0026] Figure 6 is a side structure schematic diagram of the vertical shaft wind power assembly from another perspective in the first embodiment of the present application;

[0027] Figure 7 is a structure schematic diagram of the slip ring power supply device in the first embodiment of the present application;

[0028] Figure 8 is a structural schematic diagram of the wind sail device of the second embodiment of the present application when the movable sail cylinder is raised;

[0029] Figure 9 is a platform posture control effect diagram of the second embodiment of the present application;

[0030] Figure 10 is a platform posture angle RMS value comparison diagram of the second embodiment of the present application.

[0031] Reference signs

[0032] 1, drive base; 101, first driving member; 102, gear transmission assembly; 2, vertical shaft wind power assembly; 201, fixed seat; 202, support rod; 203, generator; 204, tray; 205, second driving member; 206, adjusting turntable; 207, cam sliding groove; 208, connecting rod; 209, cam sliding rod; 210, support frame; 211, straight blade; 3, sail cylinder component; 301, fixed sail cylinder; 302, fixed ring; 303, inner tooth ring; 304, third driving member; 305, first gear; 306, second gear; 307, lifting lead screw; 308, nut seat; 309, movable sail cylinder; 310, support ring; 311, fixed rod; 4, slip ring power supply device; 41, rotor inner ring; 42, stator outer ring. DETAILED DESCRIPTION

[0033] The present application will be described in detail below through specific and concrete examples, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure of the present specification. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and each detail in the present specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0034] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0035] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0036] This specification provides an embodiment of a rotary sail device for use on a mobile offshore platform, such as... Figure 1 As shown, this invention aims to solve the problem of unstable power generation of vertical axis wind turbines on rotary sails in existing technologies when wind speed / direction changes. It can not only improve the stability of power generation of vertical axis wind turbine components, but also simultaneously take into account the working efficiency and stability of both power generation and boost modes, further enhancing the adaptability of the device.

[0037] The technical solutions provided in the embodiments of this application are described below with reference to the accompanying drawings.

[0038] Example 1

[0039] like Figures 1-2As shown, in the embodiment, the rotating drum wind sail device is typically applied on a ship, or applied on a floating platform on the sea, or other mobile platforms on the sea, which is not limited here. The rotating drum wind sail device specifically comprises a rotating drum wind sail and a vertical axis wind power assembly 2, wherein the rotating drum wind sail is rotatably installed on the platform around a fixed shaft driven by a first driving member 101, for generating Magnus boost force by its own rotation to push the platform to move or sail, and the first driving member 101 can be selected as a motor or a steering gear, as shown below, and in other ways, a hydraulic motor or a pneumatic motor can also be used. The vertical axis wind power assembly 2 comprises a generator 203, an adjusting turntable 206, and a plurality of straight blades 211. The generator 203 preferably adopts a permanent magnet rare earth generator, which is arranged at the bottom of the rotating drum wind sail and has a power input end at the upper part. The adjusting turntable 206 is rotatably installed on the power input end of the generator 203 driven by a second driving member 205, and the second driving member can be selected as a steering gear. The plurality of straight blades 211 are respectively connected to the power input end of the generator 203 in a radial direction and are spaced apart around the circumference of the adjusting turntable 206. In the embodiment, three straight blades are used and are arranged in an H-shaped distribution between two blades, and in other ways, two, four or more blades can also be used, which is not limited here. The adjusting turntable 206 and the plurality of straight blades 211 are movably connected, so that the plurality of straight blades 211 can be driven to move in a radial direction between an unfolded position and a folded position by the rotation of the adjusting turntable 206. The steering gear can accurately control the rotation angle of the adjusting turntable 206, thereby adjusting the radial position of the straight blades 211, i.e. the blade unfolding degree, and adjusting the size of the driving force arm, as described below.

[0040] In one embodiment, the vertical axis wind power assembly 2 further comprises a wind speed and direction detection unit and a three-phase electric detection module. The wind speed and direction detection unit is installed on the mobile platform on the sea for real-time detection of environmental wind speed and direction. The three-phase electric detection module is connected to the power output end of the generator for real-time detection of the current and voltage output by the generator. The second driving member 205 has a driving shaft, and the adjusting turntable 206 is fixedly connected to the driving shaft. The second driving member has an electric control device inside for controlling the rotation angle of the driving shaft. The wind speed and direction detection unit and the three-phase electric detection module are electrically connected to the electric control device.

[0041] In the working stage of the wind power assembly, the positions of the plurality of straight blades 211 in the radial direction are adjusted in real time by combining the wind speed change and / or the wind direction change detected by the wind speed and direction detection unit, so as to stabilize the power generation of the generator. Specifically, taking the wind speed change as an example, generally speaking, the increase of the wind speed leads to the increase of the force on the blades, the driving moment generated on the blades increases, and the power generation of the generator 203 increases. At this time, the plurality of straight blades 211 can be adjusted to be folded inward in the radial direction by operating the adjusting turntable 206, so that the driving force arm is reduced, so that the driving moment on the blades is difficult to increase within a certain range, so as to stabilize the power generation of the generator 203. Conversely, the decrease of the wind speed leads to the decrease of the force on the blades, the driving moment generated on the blades decreases, and the power generation of the generator 203 decreases. At this time, the plurality of straight blades 211 can be adjusted to be unfolded outward in the radial direction by operating the adjusting turntable 206, so that the driving force arm is increased, so that the driving moment on the blades is difficult to decrease within a certain range, so as to stabilize the power generation of the generator 203. That is, the positions of the plurality of straight blades 211 in the radial direction can be adjusted by operating the adjusting turntable 206, so as to adjust the size of the driving moment generated on each blade, so as to balance the fluctuation of the power generation of the generator 203 caused by the wind speed change and / or the wind direction change acting on the blades, so as to stabilize the power generation of the generator 203 within a predetermined range, and maintain the working reliability and stability of the generator 203 and the related power storage device. Specifically, the generator 203 is electrically connected to at least one power storage device, and the power storage device is used to supply power to the second driving member 205, the first driving member 101 and / or the platform power equipment.

[0042] In a specific embodiment, the wind speed and direction detection unit converts the detected wind speed and direction change into an electric signal, and sends the electric signal to the aforementioned electric control device. The electric control device controls the rotation angle of the driving shaft, so as to adjust the positions of the blades in the radial direction of the adjusting turntable 206. The three-phase electric detection module converts the current and voltage change on the power output end of the generator into an electric signal, and feeds back the electric signal to the aforementioned electric control device. The electric control device controls the action of the adjusting turntable 206, until the blades are folded or unfolded to a reasonable position. At this time, the output power of the generator should be stabilized within a predetermined range.

[0043] Further, the wires of the electric control device are electrically connected to the power storage device through a slip ring power supply device 4, so as to avoid that the wires of the electric control device are wound around the input shaft of the generator 203 when the second driving member 205 rotates, that is, when the generator generates power. Specifically, as shown in FIG. 6, the wires of the electric control device are connected to the slip ring power supply device 4 through the adjusting turntable 206, and the slip ring power supply device 4 is connected to the power storage device through a wire. Figure 6 and Figure 7As shown, the slip ring power supply device 4 includes a rotor inner ring 41 and a stator outer ring 42, which are in sliding contact and achieve power supply through the contact, wherein the rotor inner ring 41 is a current collector ring connected to the input shaft of the generator 203, and has rotor outgoing lines thereon connected with the wires of the control device, and the stator outer ring 42 is a stationary carbon brush fixed on the end seat of the generator 203, and has stator outgoing lines thereon connected with the aforementioned power storage device, for example. During power generation, the rotor inner ring 41 rotates with the input shaft of the generator 203, and the wires on the control device and the control device can rotate synchronously, so that the wires are prevented from being wound. It should be noted that the slip ring power supply device 4 can be selected as a standard part, and in one example, the slip ring power supply device with product model number TT1233-P0605-VC, the specific working principle of which is not described here.

[0044] As shown in Figures 2-4 In this embodiment, the adjusting turntable 206 has a plurality of cam sliding grooves 207 extending radially, and here, the adjusting turntable 206 has three cam sliding grooves 207, which are equally angular and uniformly distributed along the circumference of the turntable, and the cam sliding grooves 207 can optionally be arranged to penetrate the upper and lower surfaces of the adjusting turntable 206. The plurality of straight blades 211 correspond to the plurality of cam sliding grooves 207 one-to-one and are connected to the corresponding cam sliding grooves 207 through a cam sliding rod 209, specifically, one end of the cam sliding rod 209 is connected to the straight blade 211 and the other end extends into the corresponding cam sliding groove 207, and the adjusting turntable 206 drives the plurality of cam sliding rods 209 to slide in the corresponding cam sliding grooves 207 through its rotation, thereby driving the plurality of straight blades 211 to move radially.

[0045] In this embodiment, when the radial position of the straight blade 211 is adjusted by the adjusting turntable 206, since the adjusting turntable 206 and the cam sliding rod 209 on the straight blade 211 are in sliding contact, the frictional resistance generated when they are relatively active is small. Compared with adjusting the expansion and contraction movement position of the blade through a moving screw structure or adjusting the expansion and contraction movement position of the blade through a multi-link structure, the adjusting resistance generated when the radial position of the straight blade 211 is adjusted in this embodiment is smaller, the adjusting efficiency is higher, and the structure is simple to assemble and has high maintainability.

[0046] To further reduce the adjustment resistance, the cam slide rod 209 has a roller part extending towards the corresponding cam slide groove 207, which is in rolling contact with the corresponding cam slide groove 207. In this way, when the radial position of the straight blades 211 is adjusted by the adjustment dial 206, the frictional resistance generated by the relative movement between the adjustment dial 206 and the cam slide rod 209 is small due to the almost rolling friction therebetween, further reducing the adjustment resistance when the straight blades 211 are adjusted to the retracted or extended position, and in some cases, can prevent the jamming effect. It should be noted that when the straight blades 211 are adjusted to the set radial position, the position of the cam slide groove 207 in the circumferential direction can be locked by the second driving member 205 or other locking structure, and since there is a form fit between the cam slide rod 209 and the cam slide groove 207, the cam slide rod 209 is also locked in the corresponding radial position, that is, the reliable locking of the blade position is achieved. That is, through the structure of the cam slide groove and the cam slide rod described above, not only can the adjustment resistance when the radial position of the straight blades 211 is adjusted be reduced, but also the locking of the straight blades 211 position can be achieved through the form fit between the cam groove and the cam rod, thereby increasing the reliability of the wind power assembly during operation.

[0047] As shown in Figure 1 , Figure 2 and Figure 5 , in the embodiment, the rotating drum wind sail includes a driving base 1 and a sail drum component 3, the driving base 1 is rotatably installed on the platform driven by the first driving member 101, the generator 203 is arranged on the driving base 1, and the sail drum component 3 is arranged vertically on the driving base 1 and surrounds the outside of the vertical shaft wind power assembly 2, the upper end of the sail drum component 3 has an opening part, wherein the vertical shaft wind power assembly 2 and the sail drum component 3 are configured to be relatively movable in the vertical direction, so that the vertical shaft wind power assembly 2 is entirely accommodated inside the sail drum component 3 when the plurality of straight blades 211 are in the retracted position, or the vertical shaft wind power assembly 2 is entirely exposed from the sail drum component 3 through the opening part when the plurality of straight blades 211 are in the extended position.

[0048] In some cases, for example, in a severe storm, the force on the blades of the wind power assembly increases sharply and is unstable, part of the force is transmitted to the platform by the blades, increasing the roll and / or pitch and / or course deviation of the platform. In the present embodiment, the sail barrel component 3 and the vertical axis wind power assembly 2 are arranged to be movable relative to each other in the vertical direction, so that the vertical axis wind power assembly 2 is accommodated in the sail barrel component 3 when the plurality of straight blades 211 are in the retracted position. Not only can the sailing resistance be effectively reduced when the platform is sailing, thereby improving the sailing efficiency of the platform in complex sea conditions, but also under this premise, the roll and / or pitch and / or course deviation of the platform can be inhibited by driving the first driving member 101 to generate a pressure difference on the outer circumferential side of the sail barrel component 3 in real time. For the specific method of using the sail barrel component 3 to inhibit the roll and / or pitch and / or course deviation of the platform, a detailed and exemplary description is given in Embodiment Two below, which will not be repeated here.

[0049] In one case, the vertical axis wind power assembly 2 can be arranged on the driving base 1 by a lifting mechanism such as a lifting telescopic rod. At this time, the sail barrel component 3 can be a whole piece fixedly arranged on the driving base 1.

[0050] In another case, at least part of the sail barrel component 3 can be designed in a liftable form. For example, the sail barrel component 3 includes a fixed barrel 301, a movable barrel 309, and a lifting mechanism. The lower end of the fixed barrel 301 is arranged on the driving base 1 and the upper end forms the opening portion. The movable barrel 309 is liftable and is sleeved on the fixed barrel 301. The lifting mechanism is used to operatively drive the movable barrel 309 to move up and down. When the movable barrel 309 is lifted up, the vertical axis wind power assembly 2 is accommodated inside the sail barrel component 3, and when it is lowered down, the vertical axis wind power assembly 2 is exposed from the sail barrel component 3 through the opening portion.

[0051] In this case, the vertical axis wind power assembly 2 can be designed in a form fixed relative to the driving base 1. For example, the generator 203 is supported on the driving base 1 by a support rod 202 extending in the vertical direction. Specifically, the bottom of the support rod 202 is provided with a fixing seat 201 which is detachably fixed on the driving base 1 after installation. The base of the generator 203 is fixed on the top of the support rod 202. A horizontal tray 204 is installed on the power input end of the generator 203. The second driving member 205 is arranged on the tray 204. The adjusting turntable 206 is fixed on the driving shaft of the second driving member 205. More specifically, the tray 204 is in a disc shape and is arranged coaxially with the rotor shaft of the generator 203. It should be understood that the diameter of the tray 204 is at least smaller than the movable barrel 309 described above, so that the vertical axis wind power assembly 2 can be completely accommodated inside the sail barrel component 3.

[0052] Further, as shown in Figure 5 The lifting mechanism comprises a fixed ring 302, a support ring 310, a fixed rod 311, a plurality of lifting lead screws 307 and a third driving member 304, wherein the fixed ring 302 is horizontally arranged on the inner wall of the fixed mast section 301, the plurality of lifting lead screws 307 are arranged along the circumference of the fixed ring 302, and the lifting lead screws 307 are provided with nut seats 308 matched therewith, the lower ends of the plurality of lifting lead screws 307 are rotatably connected to the fixed ring 302 through pivots, and the upper ends thereof are rotatably connected to the support ring 310, the fixed rod 311 is arranged between the support ring 310 and the fixed ring 302, and the fixed ring 302, the fixed rod 311 and the support ring 310 jointly define a support frame for supporting the lifting lead screws 307, and a channel for lifting movement of the movable mast section 309 is formed between the support ring 310 and the inner wall of the fixed mast section 301. The third driving member 304 is in transmission connection with the plurality of lifting lead screws 307, and the plurality of nut seats 308 are fixedly connected with the movable mast section 309, so as to drive the movable mast section 309 to lift along the lifting lead screws 307 through the plurality of nut seats 308.

[0053] When it is required to house the vertical axis wind power assembly 2 inside the mast section 3, the third driving member 304 drives the lifting lead screws 307 to act, and then drives the nut seats to move along the corresponding lifting lead screws 307, and the lifting movement of the nut seats drives the movable mast section 309 to lift, wherein the lowest position to which the movable mast section 309 can descend is defined by the fixed ring 302, at this time, the bottom end of the movable mast section 309 abuts against the fixed ring 302, and the upper end of the movable mast section 309 is below the upper end of the fixed mast section 301, that is, the movable mast section 309 is completely housed inside the fixed mast section 301, when the movable mast section 309 lifts, it sequentially passes through the channel and the opening of the mast section 3 to extend out of the fixed mast section 301. Optionally, the tips of the lifting lead screws 307 are wedge-shaped threads with an angle of thirty degrees, so as to generate self-locking capacity, and the movable mast section 309 can be locked at the set position when it moves to the set position.

[0054] In order to reduce the weight of the device as much as possible, the third driving member 304 is used to drive the plurality of lifting lead screws 307 to move, and a transmission structure is exemplarily given as follows. The fixed sail cylinder 301 is rotatably provided with an inner gear ring 303. The output shaft of the third driving member 304 is provided with a first gear 305. The first gear 305 is in meshing connection with the inner gear ring 303, and is used to drive the inner gear ring 303 to rotate. One end of the lifting lead screw 307 is provided with a second gear 306. The plurality of second gears 306 are in meshing connection with the inner gear ring 303. The plurality of second gears 306 are driven to rotate by the rotation of the inner gear ring 303, and in turn drive the plurality of lifting lead screws 307 to rotate synchronously. The plurality of lifting lead screws 307 are driven to move up and down by the synchronous rotation, and in turn drive the movable sail cylinder 309 to move up and down. The power of one motor is synchronously transmitted to each lifting lead screw 307 through the cooperation of the inner gear ring 303, the second gear 306 and the first gear 305, so that uniform power distribution is realized, the weight of the device is reduced, and the stability and reliability of the movable sail cylinder 309 during operation are increased.

[0055] In the embodiment, the horizontal connecting rods 208 are arranged between the straight blades 211 and the corresponding cam slide rods 209. The guiding portions are formed on the tray 204 to receive and guide the radial movement of the plurality of connecting rods 208. Figure 4 As shown in the figure, the plurality of support frames 210 extending in the vertical direction are arranged on the tray 204. The plurality of support frames 210 correspond to the plurality of straight blades 211 one by one. The guiding portion is a guide hole formed on the support frame 210. The connecting rod 208 is movably connected in the radial direction in the guide hole. The guide hole also limits the movement of the connecting rod 208 to only the radial direction, so that the folding and unfolding process of the straight blade 211 is simplified and easy to control.

[0056] Further, the limiting portion is formed on the tray 204. The straight blade 211 abuts against the limiting portion in the radial direction in the folded position. Specifically, the limiting portion is formed on the radial outer surface of the support frame 210. The corresponding cam slide rod 209 abuts against the outer end of the corresponding cam slide groove 207 in the unfolded position. In this way, the adjustable range of the blade is limited. Of course, in other ways, other limiting structures can also be used to limit the adjustable range of the blade, which will not be described here.

[0057] In summary, in the above embodiment, the driving device of the rotating drum wind sail, such as the first driving member, and / or the driving device of the adjusting turntable 206, such as the second driving member 205, can be powered by the electricity generated by the vertical axis wind power assembly 2 installed on the rotating drum wind sail, thereby saving the energy consumption during the operation of the rotating drum wind sail. Further, during the working stage of the wind power assembly, the positions of the plurality of straight blades in the radial direction can be adjusted by operating the adjusting turntable 206, thereby adjusting the driving torque generated by each blade, balancing the fluctuation of the power generation of the generator 203 caused by the change of the wind speed and / or the change of the wind direction, thereby stabilizing the power generation of the generator 203 within a rated range, maintaining the working reliability and stability of the generator 203 and the related power storage device. Further, in the embodiment, the adjusting resistance between the connecting parts of the device is smaller when adjusting the positions of the blades in the radial direction, and therefore the adjusting efficiency is higher. In addition, by setting the sail drum part 3 and the vertical axis wind power assembly 2 to be relatively movable in the vertical direction, the vertical axis wind power assembly 2 can be stored in the sail drum part 3 when the plurality of straight blades 211 are in the folded position, thereby effectively reducing the wind resistance during the sailing of the offshore platform, and further improving the stability and sailing efficiency of the platform in complex sea conditions.

[0058] Embodiment Two

[0059] The embodiment based on the embodiment one further comprises a wind speed and direction detection unit, an IMU ten-axis inertial unit, a GPS data module, a three-phase electric detection module, an electromagnetic locking device, a pressure sensor array, an absolute value encoder, and a central control unit integrated with a DSP, wherein:

[0060] The wind speed and direction detection unit is installed on the upper part of the deck or the mast of the offshore mobile platform, so as to accurately detect the wind speed and direction around the platform, ensure that the data is not affected by the structure of the platform itself, and provide key input data for the blade adjustment of the vertical axis wind power assembly 2 and the attitude control of the rotating drum wind sail.

[0061] The IMU ten-axis inertial unit is installed near the center of gravity of the offshore mobile platform or fixed on the driving base 1 of the rotating drum wind sail device, so as to accurately perceive the attitude changes of the platform, such as roll, pitch and heading yaw, and provide real-time attitude information of the platform, including roll angle, pitch angle, etc. These data are important basis for judging the instability of the ship and implementing attitude suppression.

[0062] The GPS data module is preferably installed at a high position on the offshore mobile platform, so as to receive stable satellite signals and obtain the position and speed information of the platform, and provide accurate position and moving speed information of the platform, which can assist the wind speed and direction detection unit to provide more comprehensive environmental parameters and serve as auxiliary data for instability judgment.

[0063] The three-phase power detection module is connected to the power output terminal of the generator 203 to detect the current and voltage output by the generator 203 in real time, and then calculate the speed, frequency and power generation of the wind turbine, providing feedback signals for blade position adjustment control.

[0064] The electromagnetic locking device is integrated with the drive shaft of the second drive component 205 or installed on the drive link of the regulating turntable 206. Its function is to immediately trigger locking when the wind turbine speed exceeds the safety threshold, quickly brake the blades, prevent overspeed damage to the generator or other components, and ensure system safety.

[0065] The pressure sensor array is embedded or installed on the outer surface of the sail component 3, especially in the area where the sail component 3 comes into contact with the airflow when rotating, to measure the pressure distribution on the surface of the rotating sail in real time. This is used to verify the accuracy of the Magnus force model and to provide data support and online optimization basis for the speed control algorithm of the first drive component 101.

[0066] An absolute encoder is installed on the telescopic mechanism of the straight blade 211 of the vertical axis wind turbine assembly 2, for example, connected to the cam slide 209 or the connecting rod 208, or directly detects the radial position of the straight blade 211. It is used to perform closed-loop verification of the blade telescopic mechanism, accurately feedback the real-time radial position of the straight blade 211, and ensure the accuracy and reliability of blade adjustment.

[0067] The DSP (Digital Signal Processor) is integrated into the system's central control unit, located within the electrical control cabinet. It is responsible for running complex control algorithms, such as PID algorithms, Kalman filtering algorithms, and fuzzy PID controllers, and has a built-in watchdog timer for millisecond-level fault detection, ensuring real-time system response and safe operation.

[0068] In this embodiment, as Figure 8 As shown, the first driving component 101 is connected to the driving base 1 through the reduction gear transmission assembly 102. Here, the first driving component 101 is a servo motor.

[0069] Based on this, this embodiment proposes an attitude control method for a mobile platform at sea after the aforementioned movable sail 309 has been raised, specifically including the following steps: S1, the central control unit, based on the wind speed and direction data provided by the wind speed and direction detection unit, such as wind speed... Wind angle (Relative to the bow) The IMU's ten-axis inertial unit provides attitude data such as roll and pitch angles, including angular velocities along the X-axis (roll axis), Y-axis (pitch axis), and Z-axis (yaw axis). Specifically, it also includes roll angular velocity p, pitch angular velocity q, yaw angular velocity r, angular acceleration, center of gravity height h, and roll angle. Pitch angle Bow roll angle , the GPS data module provides the position and speed data, and the motor speed data, and the dynamic instability coefficient of the platform is calculated and judged according to the following formula :

[0070]

[0071] wherein, is the static water restoring moment of the platform, is the damping moment, is the dynamic moment of the platform, is the wind tilting moment of the platform, is the product of the water density of the water area where the platform is located and the gravity acceleration, is the displacement, is the lateral metacentric height of the platform, which can be obtained by using a shipborne stability computer or ship design drawings and static water force curve chart or existing platform tilting test method, is the platform roll angle, is the external tilting angle of the platform in the roll direction, for example, the instantaneous tilting angle of the platform caused by wind or wave, , is the damping coefficient, which can be determined by the curve of the roll angle changing with time measured by the IMU ten-axis inertial unit, is the windward area of the platform, is the aerodynamic force coefficient related to the wind direction angle , which is determined by the wind tunnel model test of the platform, is the change value of the height of the center of gravity of the platform with time, is the moment of inertia of the ship around the X axis (roll axis), is the moment of inertia of the ship around the Y axis, is the moment of inertia of the ship around the Z axis, is the roll angular acceleration.

[0072] S2, when If the ship is deemed unstable, the central control unit controls the first drive component 101 to indirectly drive the drive base 1 and the sail component 3 on it to rotate via the gear transmission assembly 102, generating a pressure difference in real time and producing a counteracting force. Here, a PID algorithm can be used to drive the motor in real time to generate a pressure difference, producing a counteracting force to suppress the ship's roll, pitch, and yaw. Specifically, the central control unit also includes a PID module. Within the PID module, these input real-time attitude angles are compared with preset target angles. To maintain platform or ship stability, the target roll, pitch, and yaw angles are set to zero degrees or within a very small acceptable range. The difference between the current attitude and the target attitude is the PID control error signal e(t). The PID module generates a continuous control output signal u(t) based on the input error signal e(t) and its internal proportional, integral, and derivative operations. This signal is not a direct physical quantity, but an abstract value representing the magnitude and direction of the control force. It is then converted into instructions that the spruce drive motor, i.e., the first drive unit 101, can recognize and execute. For example, for roll suppression, if the platform tilts to the right (positive roll angle), the PID module will calculate a negative control signal; if it tilts to the left (negative roll angle), it will calculate a positive control signal. The larger the amplitude of this signal, the greater the corrective force that needs to be applied. The output signal u(t) of the PID module is sent to the first drive unit 101 of the spruce, where it is converted into specific control excitations, such as servo speed commands: directly controlling the servo speed; the faster the spruce rotates, the greater the Magnus force it generates at a given wind speed. Servo steering commands control the direction of servo rotation, thereby changing the direction of the Magnus force. By changing the direction of the spruce rotation, the generated torque can be made to be opposite in direction to the torque that causes the ship to roll.

[0073] For example, when the ship rolls to the left, the PID module outputs a command to cause the first drive unit 101 to rotate the turret sail at a specific speed in a specific direction, thereby generating a rightward Magnus force under the action of the wind. This force acts on the hull, generating a torque that rights the hull and thus suppresses the leftward roll.

[0074] like Figures 9-10 As shown, in Figure 9 In the diagram, each curve describes the platform's attitude angles in roll, pitch, and yaw directions when using the aforementioned attitude control method (control) and when not using the aforementioned attitude control method (no control). Figure 10In the above embodiments, the RMS values of the attitude angles of the platform when using the above attitude control method (control) and not using the above attitude control method (no control) in terms of roll and pitch are shown respectively, wherein the RMS value is a statistical quantity for measuring the "effective size" or "average intensity" of a variable such as the roll angle in a period of time.

[0075] As can be seen, in the present embodiment, the PID module actively suppresses the rolling of the ship through the above closed-loop feedback mechanism. After judging instability, the PID module controls the first driving member 101 to indirectly drive the rotating drum wind sail to rotate through the gear transmission assembly 102 to generate a pressure difference, generate a counteractive component force, and actively suppress the rolling, pitching and heading yaw of the ship through the PID algorithm and Kalman filtering algorithm. This is further than just retracting the wind sail, and is an active attitude control.

[0076] In the above embodiment, the fan speed, frequency and power generation can be detected by the three-phase current detection module. When the speed and power generation are less than the rated power, the second driving member 205 is controlled to drive the straight blades 211 to expand. When the power generation is greater than the rated power, the second driving member 205 is controlled to drive the straight blades 211 to retract. The DSP starts the incremental PID algorithm with a dead zone to control the blade expansion, and is subjected to a second-order low-pass filter smoothing process. When the speed exceeds the safety threshold, the electromagnetic brake device triggers the electromagnetic brake of the second driving member 205. If the power continuously exceeds the rated value by 30%, the control mode of the active sail drum 309 is switched (at this time, the blades can be shielded by raising the active sail drum 309 through the third driving member 304), and the segmented strategy is used. The slip ring power supply device 4 ensures stable power supply of the second driving member 205. The blade cam extension mechanism is equipped with an absolute value encoder for closed-loop verification. All sensor data are fused by the DSP through Kalman filtering, the key signals are voted by three redundant modules, and a watchdog timer is implanted in the DSP to realize millisecond-level fault detection, so as to ensure that the electromagnetic brake device can be triggered preferentially in extreme working conditions.

[0077] The unmentioned parts of the present embodiment are the same as those of the first embodiment, and will not be repeated here.

[0078] In the present specification, the same and similar parts among the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the embodiments described later, the description is relatively simple, and the relevant parts can be referred to the part of the foregoing embodiments.

[0079] The above merely describes specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A rotating drum wind sail device for use on a mobile offshore platform, characterized by, Comprising: a rotating drum sail driven by a first driving element to rotate around a fixed axis and installed on the platform; a vertical axis wind power assembly comprising: a generator with a bottom part arranged on the rotating drum sail and an upper part having a power input end; an adjusting turntable driven by a second driving element to rotate around the fixed axis and installed on the power input end of the generator; and a plurality of straight blades respectively connected to the power input end of the generator in a radial direction and spaced apart around the circumference of the adjusting turntable; wherein the adjusting turntable and the plurality of straight blades are movably connected to each other, so that the adjusting turntable can drive the plurality of straight blades to move in a radial direction between an unfolded position and a folded position; the adjusting turntable has a plurality of cam grooves extending in a radial direction, and the plurality of straight blades are one-to-one corresponding to the plurality of cam grooves and are connected to the corresponding cam grooves through a cam slide rod; the adjusting turntable drives the plurality of cam slide rods to slide in the corresponding cam grooves through its rotation, thereby driving the plurality of straight blades to move in a radial direction; the rotating drum sail comprises: a driving base driven by the first driving element to rotate and installed on the platform, and the generator is arranged on the driving base; and a sail drum part arranged on the driving base and surrounding the outside of the vertical axis wind power assembly, and the upper end of the sail drum part has an opening part; wherein the vertical axis wind power assembly and the sail drum part are configured to be movable relative to each other in a vertical direction, so that when the plurality of straight blades are in the folded position, the vertical axis wind power assembly is entirely arranged inside the sail drum part, or when the plurality of straight blades are in the unfolded position, the vertical axis wind power assembly is entirely exposed from the opening part to the sail drum part.

2. The rotating cylinder wind sail apparatus for use on a mobile offshore platform according to claim 1, wherein, the cam slide rod has a roller part extending towards the corresponding cam groove, and the roller part is in rolling contact with the corresponding cam groove.

3. The rotating cylinder wind sail apparatus for use on a mobile offshore platform of claim 1, wherein, the sail drum part comprises: a fixed sail drum with a lower end arranged on the driving base and an upper end forming the opening part; a movable sail drum telescopically sleeved on the fixed sail drum; and a lifting mechanism for driving the movable sail drum to move up and down; wherein when the movable sail drum is lifted up, the vertical axis wind power assembly is arranged inside the sail drum part, and when the movable sail drum is lowered down, the vertical axis wind power assembly is exposed from the opening part to the sail drum part.

4. The rotating cylinder wind sail apparatus for use on a mobile offshore platform of claim 1, wherein, the generator is supported on the driving base by a support rod extending in a vertical direction, a horizontal tray is installed on the power input end of the generator, the second driving element is arranged on the tray, and the adjusting turntable is fixed on the output shaft of the second driving element.

5. A rotating cylinder wind sail device for use on a mobile offshore platform according to claim 4, wherein, the tray has a limiting part formed thereon, and the straight blades abut against the limiting part in a radial direction in the folded position.

6. The rotating cylinder wind sail apparatus for use on a mobile offshore platform of claim 3, wherein, the lifting mechanism comprises: a fixed ring arranged on the inner wall of the fixed sail drum; a plurality of lifting lead screws arranged in a circumferential direction of the fixed ring, and each of the lifting lead screws has a nut seat matched therewith; and a third driving element in driving connection with the plurality of lifting lead screws; wherein the plurality of nut seats are fixedly connected with the movable sail drum, so that the movable sail drum is driven to move up and down along the lifting lead screws through the plurality of nut seats.

7. A rotating cylinder wind sail device for use on a mobile offshore platform according to claim 6, characterised in that, A inner gear ring is rotatably installed on the fixed sail barrel, a first gear is installed on the output shaft of the third driving member, the first gear is meshed with the inner gear ring for driving the inner gear ring to rotate; A second gear is installed on one end of the lifting screw rod, a plurality of second gears are meshed with the inner gear ring, the rotation of the inner gear ring drives the plurality of second gears to rotate, and in turn drives the plurality of lifting screw rods to rotate synchronously.

8. A rotating cylinder wind sail device for use on a mobile offshore platform according to claim 4 or 5, characterised in that, Horizontal connecting rods are arranged between the straight blades and the corresponding cam slide rods, guide portions are formed on the tray to receive and guide the radial movement of the connecting rods.

9. The rotating cylinder wind sail apparatus for use on a mobile offshore platform of claim 1, wherein, The wind speed and direction detection unit is installed on the offshore mobile platform to detect the environmental wind speed and direction in real time, the three-phase electric detection module is connected to the power output end of the generator to detect the current and voltage output by the generator in real time, the second driving member has a driving shaft, the adjusting disc is fixedly connected to the driving shaft, the second driving member has an electric control device inside to control the rotation angle of the driving shaft, and the wind speed and direction detection unit and the three-phase electric detection module are electrically connected to the electric control device.

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