Ocean energy power plant and control method

Abstract

The application provides a marine kinetic energy power generation device, which comprises an electric motor, an inertial flywheel, an inner gimbal, an intermediate gimbal, an outer gimbal, a linear reciprocating generator, a top plate, a universal hinge I, a universal hinge II and a universal hinge III; wherein the stator of the electric motor is connected with the inner gimbal, and the rotor of the electric motor is connected with the inertial flywheel; the inner gimbal is connected with the intermediate gimbal through a bearing; the intermediate gimbal is connected with the outer gimbal through a bearing; the stator of the linear reciprocating generator is connected with the top plate through the universal hinge I, and the rotor is connected with the inner gimbal through the universal hinge II; and the top plate is connected with the outer gimbal through the universal hinge III. The marine kinetic energy power generation device can absorb the marine kinetic energy perpendicular to the axial direction of the electric motor, and can solve the problem of energy conversion efficiency of the device.

Description

Technical Field

[0001] This invention relates to the field of marine kinetic energy, specifically to a marine kinetic energy power generation device and control method. Background Technology

[0002] Ocean kinetic energy is a green, pollution-free, and environmentally friendly renewable energy source. The scientific development and utilization of ocean kinetic energy plays a positive role in alleviating the energy crisis and protecting the ecological environment of human society. Specifically, generating electricity using ocean kinetic energy can provide power for underwater robots, submarines, and underwater vehicles, effectively promoting the development of underwater equipment technology. Large-scale ocean kinetic energy power generation can also provide electricity for islands, reefs, and coastal facilities.

[0003] Chinese utility model patent "Wave Energy Power Generation Device and Its Usage Method" (CN114704421A) discloses a wave energy gyroscope power generation device. The device frame includes an outer frame and an inner frame. A power generation shaft module is placed on the inner frame, and a transmission module is connected at one end to the side of the power generation shaft module and at the other end to the outer frame. Under the periodic excitation of waves, this device can convert wave energy into electrical energy, and it features small size, convenient installation and maintenance, and wide applicability.

[0004] The inner frame of the gyroscope power generation device is directly connected to the outer frame, so it can only absorb wave energy parallel to the plane normal direction formed by the generator axis and the motor axis, resulting in low energy conversion efficiency. The marine kinetic energy power generation device provided by this invention can absorb marine kinetic energy perpendicular to the motor axis, thus better solving the energy conversion efficiency problem. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the purpose of this invention is to provide a marine kinetic energy power generation device and control method.

[0006] According to one aspect of the present invention, a marine kinetic energy power generation device is provided, characterized in that it comprises: an electric motor, an inertial flywheel, an inner constant-level frame, an intermediate constant-level frame, an outer constant-level frame, a linear reciprocating generator, a top plate, a universal joint one, a universal joint two, and a universal joint three; wherein the stator of the electric motor is connected to the inner constant-level frame, and the rotor of the electric motor is connected to the inertial flywheel; the inner constant-level frame is connected to the intermediate constant-level frame via bearings; the intermediate constant-level frame is connected to the outer constant-level frame via bearing one; the stator of the linear reciprocating generator is connected to the top plate via universal joint one, and its rotor is connected to the inner constant-level frame via universal joint two; the top plate is connected to the outer constant-level frame via universal joint three.

[0007] Preferably, the motor is located at the central axis of the entire device, and its rotor is connected to the center of the inertial flywheel to provide driving force; the inner gimbal is located at the longitudinal central section of the inertial flywheel; the intermediate gimbal is located outside the inner gimbal and coincides with the transverse central section of the inertial flywheel; the top plate is located above the motor; the outer gimbal covers the outside of the top plate and the intermediate gimbal to provide support for the entire device; the linear reciprocating generator is located between the top plate and the inner gimbal, and the inner gimbal drives the linear reciprocating generator to generate electricity.

[0008] Preferably, the inner gimbal is of a frame structure, in the shape of a "square", and has a protruding shaft at its top, and the protruding shaft is connected to the stator of the motor.

[0009] Preferably, the intermediate gimbal is a circular frame, and has protruding fixing rods on both sides thereof, and the fixing rods are inserted into the outer gimbal for fixation.

[0010] Preferably, the number of the linear reciprocating generators is two, and they are respectively located on both sides of the inner gimbal.

[0011] Preferably, the outer gimbal includes a cross-shaped top and a circular bottom, and the top and the bottom are connected and supported by four support plates.

[0012] According to the second aspect of the present invention, there is provided a control method for a marine kinetic energy power generation device, including:

[0013] Start the motor;

[0014] Under the drive of the motor, the inertial flywheel rotates around its axis;

[0015] When an external excitation perpendicular to the axial direction of the motor is received, the inner gimbal generates a reciprocating swing relative to the outer gimbal, driving the mover of the reciprocating generator to move;

[0016] Under the action of the universal hinge one, the universal hinge two and the universal hinge three, the mover of the linear reciprocating generator keeps a reciprocating linear motion along the stator, that is, an electromotive force is generated.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The marine kinetic energy power generation device provided by the present invention can absorb the marine kinetic energy perpendicular to the axial direction of the motor, and can further solve the problem of the energy conversion efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:

[0020] Figure 1 This is a schematic diagram of the overall structure of a marine kinetic energy power generation device according to the present invention.

[0021] In the diagram: 1. Electric motor; 2. Inertia flywheel; 3. Inner leveling frame; 4. Middle leveling frame; 5. Outer leveling frame; 6. Free piston linear generator; 7. Top plate; 8. Universal hinge one; 9. Universal hinge two; 10. Universal hinge three. Implementation

[0022] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention. These all fall within the scope of protection of the present invention.

[0023] like Figure 1 As shown, this invention proposes a marine kinetic energy power generation device, mainly comprising a motor 1, an inertial flywheel 2, an inner constant-level frame 3, an intermediate constant-level frame 4, an outer constant-level frame 5, a linear reciprocating generator 6, a top plate 7, universal joint 8, universal joint 9, and universal joint 3 10. The stator of the motor 1 is fixed to the inner constant-level frame 5 by bolts, and the rotor of the motor 1 is connected to the inertial flywheel 2 by a key. The inner constant-level frame 3 is connected to the intermediate constant-level frame 4 by bearings; the intermediate constant-level frame 4 is connected to the outer constant-level frame 5 by bearings; the stator of the linear reciprocating generator 6 is connected to the top plate 7 by universal joint 8, and its rotor is connected to the inner constant-level frame 3 by universal joint 2 8; the top plate 7 is connected to the outer constant-level frame 5 by universal joint 3 10.

[0024] The working process of the marine kinetic energy power generation device of this invention is as follows: Driven by an electric motor, an inertial flywheel rotates around its axis. The high-speed rotating inertial flywheel can generate torque that balances the disturbance torque, thus maintaining the direction of the flywheel's rotation axis unchanged under the inertial reference. As shown in the attached diagram, during the operation of the power generation device, the gyroscope rotor always points in the vertical direction.

[0025] When subjected to an external excitation perpendicular to the motor axis, the intermediate constant level frame rotates relative to the outer constant level frame, and the inner constant level frame rotates relative to the intermediate constant level frame, with the two relative rotation directions being perpendicular. Simultaneously, under the action of universal joint one, universal joint two, and universal joint three, the mover of the linear reciprocating generator performs reciprocating linear motion along the stator, thus generating electromotive force.

[0026] That is, as shown in the attached diagram, the motor shaft is vertical. The wave motion is simplified to sinusoidal motion. Assuming the external disturbance direction is perpendicular to the motor shaft, the wave motion in this direction can be decomposed into a vertical direction and a horizontal direction relative to the screen. For the wave motion component perpendicular to the screen, the outer constant-level frame, top plate, and middle constant-level frame reciprocate around the screen direction, while the inner frame and rotor remain vertical. Under the action of the hinge, the two motor movers in the horizontal direction move around the stator. For the wave motion component in the horizontal direction, the outer constant-level frame and top plate reciprocate around the horizontal direction, while the middle constant-level frame, inner constant-level frame, and rotor remain vertical. Under the action of the hinge, the two motor movers perpendicular to the screen direction move around the stator.

[0027] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention. The above preferred features can be used in any combination without conflict.

Claims

1. A marine kinetic energy power generation device, characterized in that, Comprising: A motor, an inertial flywheel, an inner gimbal, an intermediate gimbal, an outer gimbal, a linear reciprocating generator, a top plate, a universal hinge one, a universal hinge two and a universal hinge three; Wherein, the stator of the motor is connected to the inner gimbal, and the rotor of the motor is connected to the inertial flywheel; the inner gimbal is connected to the intermediate gimbal through a bearing; the intermediate gimbal is connected to the outer gimbal through a bearing; the stator of the linear reciprocating generator is connected to the top plate through the universal hinge one, and its rotor is connected to the inner gimbal through the universal hinge two; the top plate is connected to the outer gimbal through the universal hinge three.

2. The marine kinetic energy generation device according to claim 1, characterized in that, The motor is located at the central axis of the entire device, and its rotor is connected to the center of the inertial flywheel and provides driving force; the inner gimbal is located at the longitudinal central section of the inertial flywheel; the intermediate gimbal is located outside the inner gimbal and coincides with the transverse central section of the inertial flywheel; the top plate is located above the motor; the outer gimbal covers the outside of the top plate and the intermediate gimbal and provides support for the entire device; the linear reciprocating generator is located between the top plate and the inner gimbal, and the inner gimbal drives the linear reciprocating generator to generate electricity.

3. The marine kinetic energy generation device according to claim 1, characterized in that, The inner gimbal is of a frame structure, in the shape of a "square", and has a protruding shaft at its top, and the protruding shaft is connected to the stator of the motor.

4. A marine kinetic energy power generation device according to claim 3, characterized in that, 5. A marine kinetic energy generation device according to claim 1, characterized in that, The intermediate gimbal is a circular frame, and has protruding fixing rods on both sides thereof, and the fixing rods are inserted into the outer gimbal for fixation.

6. A marine kinetic energy generation device according to claim 1, characterized in that, The number of the linear reciprocating generators is two, and they are respectively located on both sides of the inner gimbal.

7. A control method for a marine kinetic energy power generation device, employing the marine kinetic energy power generation device according to any one of claims 1-6, characterized in that, The outer gimbal includes a cross-shaped top and a circular bottom, and the top and the bottom are connected and supported by four support plates. Comprising: Start the motor; Under the drive of the motor, the inertial flywheel rotates around its axis; When an external excitation perpendicular to the axial direction of the motor is received, the inner gimbal generates a reciprocating swing relative to the outer gimbal, driving the rotor of the reciprocating generator to move; Under the action of the universal hinge one, the universal hinge two and the universal hinge three, the rotor of the linear reciprocating generator maintains a reciprocating linear motion along the stator, that is, an electromotive force is generated.

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