12 results about "Wave power plants" patented technology

Buffer structure for wave power plant, comprising at least: a housing (1) consisting of a first plate (11) and a second plate (12), wherein a third plate (13) is provided between the two sides of the first plate (11) and the second plate (12), wherein the underside of the first plate (11) is provided with an inlet (111) and the underside of the second plate (12) with an outlet (121); a wave energy collector (2) comprising a support shaft (21) whose two ends are each connected to the third plates (13) via a shaft bearing (22), wherein a wave impact plate (23) and a striker bar (24) extend from the support shaft (21) perpendicular to each other, wherein the wave impact plate (23) is located near the inlet (111) and runs parallel to it; a pulley system (3) comprising a first connecting rod (31) and a second connecting rod (32), both ends of which are connected to the third plates (13), wherein a first fixed pulley (33) and a second fixed pulley (34) are arranged in the middle of the first connecting rod (31) and the second connecting rod (32), wherein the first connecting rod (31) is located in front of the striking rod (24) and the second connecting rod (32) is located near the top of the housing (1), wherein the pulley system (3) further comprises a rope (35), one end of the rope (35) being connected to a counterweight (36), while the other end is successively guided through the second fixed pulley (34) and the first fixed pulley (33) and is attached to the end of the striking bar (24); a buffer assembly (6) comprising a support plate (61) whose two ends are each connected to the third plates (13), wherein a through hole (62) is provided in the center of the support plate (61) for guiding the cable (35) through it, and wherein several buffer bodies (63) are arranged below the support plate (61) distributed around the through hole (62); and a power generating device (4) that receives the energy transmitted by the striking rod (24) and converts it into electrical energy; wherein a wave enters the housing (1) through the inlet (111) and strikes the wave impact plate (23), causing the wave impact plate (23) to perform a lever movement around the support shaft (21) and rotate forward into a horizontal position, while the impact rod (24) simultaneously pivots backward into a vertical position, wherein the force arm of the impact rod (24) is longer than that of the wave impact plate (23), which increases the speed of movement of the striking rod (24), so that the striking rod (24) has a longer stroke, wherein the striking rod (24) pivots backward and pulls the rope (35), thereby raising the counterweight (36) located at the other end, wherein when the counterweight (36) is raised and touches the multiple buffer bodies (63), these provide shock absorption, wherein once the shaft has completed its stroke, the counterweight (36) pulls the rope (35) downward due to gravity, thereby retracting the striking rod (24) from the vertical to the horizontal position, while the shaft impact plate (23) moves back from the horizontal to the vertical position synchronously with the striking rod (24).

The application is suitable for the technical field of power generation devices, and provides a marine wave power generation device, which comprises a mounting support and further comprises: a first power generation mechanism, the first power generation mechanism comprising a first generator and a runner, a group of runners being arranged on the two sides of the first generator respectively, mounting belts being connected between the two groups of runners, and the runners being sleeved on the first generator; and a second power generation mechanism, the second power generation mechanism comprising mounting boxes, swing blocks and power generation runners, two mounting boxes being symmetrically mounted on the mounting belts, second generators being mounted in the mounting boxes, a power generation runner being fixed on the rotating shaft of each second generator, the two ends of each swing block being mounted on a second generator, and the swing blocks being in transmission connection with the two power generation runners through two groups of ratchet wheel assemblies. The device can effectively convert the kinetic energy generated by waves into electricity, and the cooperation of the two mechanisms improves the power generation efficiency.

The invention provides a wave power generation device speed control method and system with low wave parameter dependence. The method comprises the following steps: respectively establishing kinematic models of a wave power generation device in a frequency domain and a time domain; based on the kinematic model, establishing an optimal reference speed generation strategy; based on the kinematic model, establishing a hyper-local model of the wave power generation device; establishing a sliding mode observer according to the hyper-local model; and based on the hyper-local model and the sliding-mode observer, designing a prediction speed control law to calculate a reference electromagnetic force. According to the method, the speed control method without wave model parameters is constructed on the basis of the basic theory of impedance matching in combination with the establishment of the hyper-local model and the sliding-mode observer, the algorithm does not need to update the wave model in real time, the calculated amount in the operation process is greatly reduced, and the calculation efficiency is improved. And the method has higher adaptability to complicated irregular sea conditions.

The utility model discloses a wave power generation device based on a floater, and relates to the technical field of power generation devices, the wave power generation device comprises an anchoring assembly, a power generation assembly is fixedly installed on the outer side of the anchoring assembly, the power generation assembly comprises a transduction cavity, an impeller is rotatably connected in the transduction cavity, a generator is arranged on one side of the transduction cavity, and a floater is arranged on the other side of the transduction cavity. The input end of the generator is fixedly connected with the impeller, the top and the bottom of the transduction cavity communicate with hydraulic pipes, sliding pistons are slidably connected into the hydraulic pipes, piston rods are fixedly mounted on the sides, away from the transduction cavity, of the sliding pistons, and mounting strips are fixedly mounted at the ends, away from the sliding pistons, of the two piston rods. A floater is fixedly mounted on one side of the mounting strip, two one-way valves opposite in direction are fixedly mounted at the communication position of the hydraulic pipe and the transduction cavity, and the directions of the one-way valves on the same side of the transduction cavity are the same. According to the utility model, the power generation efficiency can be effectively improved, the structure is simple, the maintenance cost is low, and the practical value is high.

A harbour system (1) comprises a first harbour section (100) and a second harbour section (200), wherein the first harbour section (100) has at least one berth (4) for boats, at least one lock (5) having at least one lock chamber (5a, 5b) each having two lock gates, and a hydropower plant (2), wherein the hydropower plant (1) has at least one wave power plant (2a) having a pump module (16), which is driven by wave movements of a sea section (M), and a pumped storage means (6). The second harbour section (200) of the harbour system (1) has at least one container harbour basin (7) having at least one lock (8) with two lock chambers (8a, 8b), at least one container terminal (10) having at least one container crane unit (20) and at least one further pumped storage means (6a).

Wave power plant with floating bodies designed as elongated hollow bodies that float on the water surface and in which longitudinal current coils are arranged, to which a longitudinally sliding magnet is assigned, which is coaxially encompassed by the current coils and which slides back and forth under the influence of the sea waves when the floating body's inclination changes, thereby generating a direct current in the current coils. characterized by that the magnet is a ring magnet (7), that the ring magnet (7) coaxially surrounds the current coils, that the floats (2) are mechanically and electrically connected to each other to form float snakes, that a large number of floating body snakes are arranged parallel to each other and connected laterally, that this floating system is connected at the head end via ropes to a large rotating frame which loosely surrounds a steel pile anchored vertically in the seabed.

The present application relates to wave energy power generation technical field, concretely for a kind of wave energy power generation equipment on sea surface, including supporting device, extrusion device, variable volume container and second generator, supporting device includes base fixed in water bottom, and fixedly installed with mounting column on base.The present application proposes a kind of wave energy power generation equipment on sea surface, can effectively by wave drive variable volume container deformation, to drive circulating solution between variable volume container and liquid storage tank circulation, in turn drive micro water turbine rotation, to utilize micro water turbine drive second generator and carry out power generation, and still can be directly impacted by wave two forms of flexible bag and wave impact extrusion plate to utilize different wave, to improve the adaptability of equipment to different wind wave conditions, also have higher power generation efficiency.Solve the low power generation efficiency of existing wave energy power generation equipment, poor adaptability problem, can effectively improve the utilization efficiency of wave energy.

The invention provides a wave power generation device, and relates to the technical field of energy. The wave power generation device comprises a box body, a base, a transmission assembly, an elastic piece and a driving assembly. And the box body is connected with a floating body arranged on the water surface. And the base is arranged in the box body. The transmission assemblies are installed in the box body and located on the two opposite sides of the base after being installed, and driven shafts of the transmission assemblies are connected with the generator. One end of the elastic piece is connected with the box body, and the other end is connected with a driving shaft of the transmission assembly. The driving assembly is rotationally installed on the base, and when the driving assembly is in contact with the transmission assembly after being installed, the driving assembly drives the transmission assembly to move under the action of waves. When the driving assembly drives one transmission assembly to rotate, the other transmission assembly loses the balance load and drives the other transmission assembly to rotate in the same direction with the transmission assembly under the action of the elastic piece. According to the wave power generation device, wave surging is utilized, kinetic energy can be collected from all directions, the kinetic energy is converted into electric energy, and the power generation efficiency is improved.

The present invention relates to a rocking rotor for use in a wave power plant, the rocking rotor comprising a buoyant body being rotatably connected to a frame construction, the buoyant body being interconnected to the frame construction via a first rotational joint, the buoyant body being configured to, in response to an incoming wave, perform a rocking motion about a first rotational axis, an energy extractor having a first end, a second end and a frame-side rotational center, the energy extractor having a first connector at the first end and a second connector at the frame-side rotational center, wherein the first connector rotatably connects the first end of the energy extractor to the buoyant body at a first position via a third rotational joint, and wherein the second connector rotatably interconnects the frame-side rotational center of the energy extractor to the frame construction via a second rotational joint, the frame-side rotational center of the energy extractor being configured to rotate about a second rotational axis.

The application provides a method, device and electronic equipment for estimating power generation of a wave power generation device, wherein the method comprises: calculating a wave height-period data distribution of a wave force time domain signal half wave of the wave power generation device; calculating a half wave energy corresponding to the wave force time domain signal half wave according to the wave height-period data distribution of the wave force time domain signal half wave; and calculating an average power of the wave force time domain signal according to the wave height-period data distribution of the wave force time domain signal half wave and the calculated half wave energy of the wave force time domain signal. The method, device and electronic equipment for estimating power generation of the wave power generation device provided by the application do not need to solve a large number of or large optimization problems of the wave force time domain signal, and do not need to calculate the whole process of system operation, thereby greatly reducing the calculation time.

The invention relates to the field of renewable energy engineering, and more particularly to the use of floating wave power plants in marine energy engineering. The invention can be used for supplying power to consumers located in coastal zones or on the surface of large bodies of water. What is proposed is a floating wave power plant designed so that a buoy can be submerged below the water in the event of rough seas to protect the structure against the destructive effects of wave dynamics and so that said buoy can resurface in the event of calm seas. In addition, to increase productivity, each of six actuators comprises a power take-off system with a rotary electric generator. The invention is intended to protect the structure against the destructive effects of waves and to increase the productivity of a floating wave power plant.

Disclosed is a wave power plant comprising: a frame construction extending in a longitudinal direction and having a rotor shaft extending in the longitudinal direction of the frame construction; a plurality of rocking rotors arranged to be rotatable about a rotor axis relative to the frame configuration, each rocking rotor comprising a floating body having a housing, a bearing arranged at the rotor axis, an interface configuration configured to interconnect the floating body with the bearing such that the rocking rotors are rotatably connected to the rotor axis, the housing of the floating body has a triangular shape and has a first side, a second side, and a third side, the first and second sides being a first convex side and a second convex side, the third side being a third concave side, the third concave side facing the rotor shaft.