54 results about "Oscillating Water Column" patented technology

The invention discloses a semi-submersible fan-oscillating water column wave energy device integrated device with heaving plates. The semi-submersible fan-oscillating water column wave energy device integrated device comprises floating fan equipment, a central platform, buoys, hydraulic heaving plate connecting rods, an upper-layer permeable heaving plate, a lower-layer non-permeable heaving plate, a control system, a wind speed monitoring sensor and a laser wave surface displacement sensor. The floating fan equipment is arranged at the upper part of the central platform; the buoy is formed by connecting a permeable protective cover, a hydraulic connecting rod, an OWC device, an air pressure enhancing device, an internal supporting rod, a telescopic supporting plate and a pneumatic turbine. The upper-layer permeable heaving plate and the lower-layer non-permeable heaving plate are connected to the bottom of the buoy through the hydraulic heaving plate connecting rod; the control system is positioned in the lower horizontal plate of the central platform; the wind speed monitoring sensor and the laser wave surface displacement sensor are arranged on a stand column of fan equipment. The fan operation efficiency and the system reliability are improved, the whole life cycle cost is effectively reduced, and good durability and maintainability are achieved.

The invention relates to the technical field of ocean new energy technology utilization, and discloses an oscillating water column type wave energy power generation system with an energy gathering structure at the bottom, which comprises a jacket, an air chamber, a turbine power generation system, a radar altimeter, an infrared camera, an airflow velocity sensor, a control host and a bottom energy gathering assembly, the bottom energy-gathering assembly is installed at the lower end of the air chamber and provided with a transmission mechanism, reflection and diversion of seawater at the bottom of the air chamber are achieved through the arranged horizontal bottom plate and the two symmetrically-arranged energy-gathering plates, energy gathering beyond the width of the air chamber is completed, and opening and closing of the energy-gathering plates are synchronously controlled through the transmission mechanism. And the amount of seawater flowing into the air chamber from the water inlet is changed. According to the wave energy power generation system, the oscillation intensity of the water column in the air chamber can be adjusted according to changes of sea surface waves, the speed of the generated air flow can be matched with the optimal working frequency of the turbine power generation system, the power generation efficiency of the device is guaranteed, and the oscillation water column type wave energy power generation device can be protected and prevented from being impacted by sea waves.

The invention relates to the field of ocean renewable energy technology utilization, and provides an oscillating water column type wave energy power generation device based on a superstructure, which comprises an oscillating water column main body, a superstructure assembly, a top shell and a power generation unit, and is characterized in that the interior of the oscillating water column main body is provided with the superstructure assembly formed by a plurality of guide plates which are arranged along the radial direction and extend in a horn shape; the oscillating water column body is internally divided into a plurality of independent oscillating water column cavities with gradually-changed sizes by combining with the partition plate assembly, an air chamber is defined by the top shell and the oscillating water column body, and airflow energy generated by water column oscillation driving is converted into electric energy through the power generation unit. The power generation unit can adopt a plurality of split type air turbines to generate power or a general type air turbine to generate power. The special fluctuation performance of the superstructure is fully exerted, efficient broadband capture and wave absorption are achieved, meanwhile, wave loads are effectively reduced, diversified integration of wave energy power generation devices is developed, sea area resources and operation and maintenance cost are saved, and negative environmental influences are reduced.

The invention relates to the technical field of breakwaters, in particular to a breakwater embedded with an oscillating water column type wave energy power generation device adapting to tidal range variation, which comprises a breakwater body, a plurality of mounting grooves are formed in the head wave surface of the breakwater body and are respectively arranged at intervals in the horizontal direction, and a driving system is arranged in each mounting groove. The driving system is connected with an oscillating water column type wave energy power generation device, and the oscillating water column type wave energy power generation device is driven by the driving system to ascend and descend in the vertical direction. A plurality of oscillating water column type wave energy power generation devices are embedded in the head wave face of the breakwater body at intervals, and the heights and opening orientations of the oscillating water column type wave energy power generation devices are flexibly adjusted through the driving system so as to adapt to and be matched with tidal range changes and incoming wave direction changes of a service sea area; on the basis of maintaining stable mooring conditions in the harbor, energy absorption and capture of waves with different tide levels and incoming wave directions are achieved in an efficient mode, and the capture efficiency is improved to the maximum extent.

The invention relates to a wave energy utilization device with cluster acquisition and cache push-pull functions. The system is characterized by comprising an oscillating water column type wave energy collector group, a positive pressure pipeline which is communicated with the oscillating water column type wave energy collector group and is provided with a one-way valve, a negative pressure pipeline which is communicated with the oscillating water column type wave energy collector group and is provided with a one-way valve, and a positive pressure buffer tank which is communicated with the positive pressure pipeline, the negative pressure buffer tank is communicated with the negative pressure pipeline, and a turbine generator set which is driven by the pressure difference in the buffer tank to generate power is arranged between the positive pressure buffer tank and the negative pressure buffer tank. The wave energy utilization device with the cluster acquisition and cache push-pull functions is simple in structure and reasonable in design, and large-scale utilization of wave energy is facilitated.

The invention relates to the technical field of water conservancy projects, and discloses an estuary channel erosion and deposition control method and system based on water column wave energy collection and release. According to the method, wave energy is captured through an oscillating water column air chamber with a bottom opening, bidirectional airflow is converted into unidirectional high-pressure airflow through an airflow rectifying unit, and the unidirectional high-pressure airflow is stored in a high-pressure energy storage container; the system monitors the flow velocity of a channel and the air pressure of the energy storage container in real time, only when the flow velocity meets a preset ebb tide transportation condition and the air pressure is higher than a critical threshold value, a trigger instruction is generated, after the instruction is responded, high-pressure gas is injected into the gas-liquid replacement excitation cavity sinking to the bottom, and water in the driving cavity forms high-speed hydraulic jet flow through a Laval nozzle to impact bottom mud. After jet flow is finished, the cavity exhausts air and relieves pressure, the external water body reversely flows back through the hydrostatic pressure of the environment, and suspended sediment is entrained and sucked. Through the cyclic operation, energy self-sufficiency, intelligent opportunity selection operation and efficient dredging are achieved, the operation cost and the environmental influence are reduced, and the method is suitable for remote and unattended navigation channel maintenance.

The invention relates to a quick design method for a floating body system of an oscillating water column type wave energy device, which comprises the following steps of: selecting a proper turbine system type according to wave characteristics of a target sea area, and determining the size, blade shape and rotating speed of the turbine system; performance parameters of the turbine system are obtained through numerical simulation and experimental testing, and the performance parameters of the turbine system are simplified; according to the performance parameters of the simplified turbine system, a correlation model of the turbine system and a floating body system is established, and wave boundary conditions are set; carrying out grid division on a flow field around the floating body system, selecting a proper turbulence model and a solver, and carrying out steady-state or transient-state simulation; and calculating the primary energy conversion efficiency of the floating body system and optimizing the floating body system. According to the method, the design period and the repeated modification frequency are reduced, parameter matching between the turbine system and the floating body system is more reasonable through the whole design method, the energy conversion efficiency of the whole device is improved, and the performance of the whole system is optimized.

The present application relates to wave energy power generation technical field, provide a kind of oscillating water column wave energy conversion system based on magneto-hydrodynamic power generation, at least includes: float, including sealed end and open end, open end is suitable for extending into water body, to make the region between water surface and sealed end in the interior of float form air chamber, air chamber has with the gas passage of outside communication, air chamber is provided with magnetic field;Oscillating space is arranged in air chamber, and can be deformed;Oscillating space is filled with liquid metal, and oscillating space is suitable for deforming to make liquid metal flow cutting magnetic field to generate current when being impacted by airflow.The conversion system, oscillating space can be deformed to make liquid metal flow cutting magnetic field to generate current when being impacted by airflow upward or downward.Compared with traditional rotary turbine generator, without setting one-way valve rectification system, structure is more simple, more easily maintained, cost is lower, it is conducive to wide range of popularization and use.

An oscillating water column (OWC) includes a top body and a bottom body. The top body includes a hollow shape, an open top end, an open bottom end, a chamber traversing between the open top and bottom ends, a power take-off system proximate to the open top end, and an air channel proximate to the open top end and the power take-off system. The bottom body includes a bottom heave plate and a plurality of flexible tethers coupling the top body and the bottom body.

A floating oscillating water column-type wave energy power generation apparatus includes a first runner chamber and a protective cap, wherein a nozzle is mounted inside the first runner chamber, a flow-guiding cone is coaxially mounted below the nozzle, the flow-guiding cone is conical and arranged with a tip facing down; an impeller is coaxially mounted above the nozzle; a power generator is coaxially mounted above the impeller; the protective cap is mounted at the top of the first runner chamber; and a gap is provided between an edge of the protective cap and an edge of the first runner chamber for air circulation. According to the floating oscillating water column-type wave energy power generation apparatus, as the nozzle with the flow-guiding cone structure is used, the flow-guiding cone can guide air flowing, and increase the air flowing speed in the apparatus.

The application discloses a floating oscillating water column type wave power generation device, which comprises a runner chamber I and a protective cap, a nozzle is arranged in the runner chamber I, a flow guide cone is arranged below the nozzle and has the same central axis with the nozzle, the flow guide cone is conical and has a downward pointed end, an impeller is arranged above the nozzle and has the same central axis with the nozzle, a generator is arranged above the impeller and has the same central axis with the impeller, the protective cap is arranged on the top of the runner chamber I, and gaps for air circulation are arranged at the edges of the runner chamber I and the protective cap. The nozzle with the flow guide cone structure is adopted in the application, the flow guide cone can guide the flowing direction of air flow, accelerate the flowing speed of the air flow in the device, and slow down the wave upwelling phenomenon in the runner chamber, thereby protecting the internal components of the device. The protective cap can effectively protect the generator and the controller in the device from the erosion of rainwater and sea air, thereby prolonging the service life of the device.

The invention relates to the technical field of ocean engineering, and particularly discloses an oscillating water column type wave energy breakwater integrated system based on a superstructure. The system comprises a breakwater carrier which is internally provided with a superstructure formed by a plurality of arc-shaped flow guide plates which are coaxially arranged. The superstructure divides the internal cavity of the carrier into a plurality of independent sector-ring-shaped cavities with different radial sizes. The top of each sector-ring-shaped cavity is provided with a cavity top plate and a vent hole, and the vent holes are connected with a turbine generator through pipelines. The breakwater carrier may be designed as a floating structure anchored by a mooring system or as a bottom-seated structure that is directly bottom-seated. Through the superstructure design, a plurality of oscillating water columns with different inherent frequencies can be excited in the system, so that efficient capture and conversion of broadband wave energy are realized. Meanwhile, the wave absorbing performance is effectively improved, and the wave load is remarkably reduced.

The present application relates to a kind of integrated oscillating water column type wave energy conversion device's catamaran combination type floating breakwater, single section floating breakwater includes floating body structure and oscillating water column type wave power generation system;Floating body structure includes catamaran pontoon structure, catamaran float structure and underwater wave board;The upper portion of float is equipped with ballast tank, battery compartment and airflow duct, and the lower portion is equipped as first air chamber;Underwater wave board is installed in the lower end of float, forms second air chamber, and second air chamber is communicated with first air chamber and is jointly constituted air chamber structure;Air chamber structure is provided with water inlet in the direction perpendicular to wave incidence;Generator set is arranged in airflow duct, and airflow duct is communicated with external gas and air chamber structure.The catamaran of the present application not only can effectively enhance the weakening effect of floating breakwater to long-period wave, but also can be used twice to transmission wave and diffraction wave;The combination of underwater wave board and float improves the space of air chamber, and enhances the power generation efficiency of wave energy power generation device.

The invention discloses a wind wave energy integration system combining an oscillating water column and a floating fan, and relates to the technical field of wind wave energy integration utilization, comprising: a floating foundation module which is of a semi-submersible triangular truss structure and is fixed through an anchoring system; the oscillating water column energy conversion module is arranged on the outer side of the buoyancy chamber, comprises a gas water chamber, an adjustable guide plate and a bidirectional pneumatic turbine, and is matched with a permanent magnet synchronous generator; the floating type fan module is arranged on the central truss and comprises a three-blade horizontal shaft fan, a hydraulic variable pitch system and a permanent magnet direct drive generator; the energy management module comprises a rectification unit, an inversion unit, a hybrid energy storage unit and a monitoring unit and is used for realizing smooth power output; the posture stabilizing module is provided with 4-6 hydraulic active stabilizing fins and a posture sensor, and the inclination angle of the floating body is controlled within + / -5 degrees. The energy utilization efficiency and the output stability are improved, the anti-storm capacity is enhanced, the anti-corrosion service life is prolonged, the cost is reduced, the device adapts to multiple sea conditions, and support is provided for large-scale development of storm energy.

The invention relates to the technical field of ocean renewable energy utilization, and discloses a combined type wave power generation device based on built-in oscillating body motion control, which comprises an annular floating carrier platform, an air turbine generator set and a plurality of built-in oscillating body power generation systems, and is characterized in that the annular floating carrier platform consists of an inner shell and an outer shell; the upper ends of the inner shell and the outer shell are jointly and fixedly connected with a deck, the lower ends of the inner shell and the outer shell are jointly and fixedly connected with an annular base, the bottom of the inner shell is opened towards seawater to form an oscillating water column, the free liquid level of the water column, the inner shell and the deck form an air chamber, and the air turbine generator set is installed in the center of the deck. The device is used for converting air kinetic energy generated by motion of the oscillating water column in the air chamber into electric energy. According to the technical scheme, the motion of the floating carrier can be effectively restrained through the built-in oscillator power generation system, meanwhile, the relative motion amplitude of the oscillating water column and the floating carrier can be increased, and then the wave energy capturing efficiency is improved.

The invention relates to the technical field of ocean engineering and renewable energy sources, and discloses a back wave water inlet type oscillating water column structure based on long wave reduction and energy extraction, which comprises a wave absorption main body, a support, a pile foundation and a turbine generator set with an air turbine, and further comprises an arc-shaped moving door, the two arc-shaped moving doors are connected into an interlayer of the wave absorbing body in a sliding mode, and a back water inlet matched with the two arc-shaped moving doors is formed in one side of the wave absorbing body. Water level modulation caused by the phase difference between the liquid level fluctuation of the cavity and the liquid level fluctuation outside the cavity is formed to reduce waves. According to the technical scheme, wave response optimization under different wave periods can be achieved by synchronously adjusting the size of the water inlet, the energy extraction efficiency is improved, the wave transmissivity is reduced, and the device is suitable for various layout forms of offshore and open sea areas and has the good wave adaptability and the integration characteristic of wave reduction and energy extraction.

The invention discloses a self-adaptive elastic tube double-oscillation water column wave energy conversion device, which belongs to the technical field of ocean energy utilization and comprises an elastic tube, hard tubes at two ends and an in-tube oscillation water column, and an adjusting assembly in the hard tubes is electrically connected with a free end turbine device and a controller. The adjusting assembly comprises internal and external liquid level sensors, a bidirectional water pump and adjusting blades capable of surrounding air adjusting holes. The device combines a double-oscillation water column with the elastic pipe, improves the natural oscillation period, is easy to resonate with waves, converts wave energy at two ends, absorbs energy along the full length of the elastic pipe, and improves the energy capturing efficiency and the space range; the system oscillation period can be adjusted by adjusting the pore diameter of the air hole, and the efficient frequency bandwidth is widened; different wave frequencies are matched, and the power generation efficiency of the device is improved. The flexible structure of the elastic tube improves the survivability under extreme wave conditions; the two-way water pump can adjust internal water pressure according to wave water level and wave height to adapt to tide level change and enhance protection, the water surface of an oscillating water column in the pipe is stable, and the overall stability is high.

The invention relates to the technical field of wave energy power generation ships, in particular to a controllable oscillating water column type wave energy power generation ship and a method thereof.The controllable oscillating water column type wave energy power generation ship comprises a rear bent pipe ship body, an air turbine, a speed reducer, an opening and closing mechanism, a starting motor and a generator, the rear bent pipe ship body is provided with a hollow channel, and an air inlet of the air turbine communicates with an air outlet of the hollow channel; the opening and closing mechanism comprises an airflow baffle and an opening and closing driving motor, the opening and closing driving motor drives the airflow baffle to shield or open an air outlet of the air turbine, an output shaft of the air turbine is in transmission connection with an input shaft of the generator through a speed reducer, and an output shaft electromagnetic clutch is arranged on the output shaft of the air turbine. The output end of the starting motor is in transmission connection with an output shaft of the air turbine through an output shaft electromagnetic clutch. The controllable oscillating water column type wave energy power generation ship and method are good in control effect, high in reliability, not prone to damage under extreme sea conditions and high in survivability.

This application relates to the field of wave energy simulation technology and discloses a simulation method and system for dual-mode frequency tuning of oscillating water columns in a double-slit caisson. The method includes: establishing a two-degree-of-freedom dynamic equation system based on the displacements of the water columns in the front and rear cavities, using the slit transmission coefficient as a parameter to obtain the coupling stiffness; substituting the coupling stiffness into the eigenvalue equation to decompose the oscillation modes of the two cavities to obtain the mode transformation matrix and mode amplitude ratio; performing convolution integration on the mode amplitude ratio and the wave power spectrum of the target sea area to obtain the first-order mode weight and second-order mode weight; using a preset target first-order mode weight as the outer convergence target and a preset target natural frequency as the inner convergence constraint to perform a double-layer nested iterative solution on the slit transmission coefficient and the rear cavity volume to obtain the optimal slit width and the optimal rear cavity volume. This application solves the problem of unobservable and undesignable energy contribution ratios of each mode in existing technologies, leading to spectral mismatch.

This invention relates to the field of offshore power generation technology, specifically to an integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device. The device includes a jacket and a dual-chamber oscillating water column wave energy assembly, which is driven by a lifting mechanism to achieve vertical movement. The assembly comprises an inner chamber and an outer chamber, with the inner chamber capable of vertical movement relative to the outer chamber. Both the inner and outer chambers are equipped with turbine power generation mechanisms. A flow regulation component is used to adjust the opening of the first and second air orifices. This invention can adjust the inner and outer chambers to a suitable draft depth via the lifting mechanism; it can also achieve single / dual chamber switching and adjust the orifice opening ratio to improve power generation efficiency via the flow regulation component; multiple measures can be combined to improve the power generation efficiency of the wave energy device. In extreme sea conditions, the dual-chamber oscillating water column wave energy assembly moves upwards, away from the sea surface to a safe position, thereby reducing the impact of waves on the device.

This invention relates to the field of marine new energy technology utilization, and discloses an oscillating water column wave energy generation system with a bottom-mounted energy-concentrating structure. The system includes a jacket, an air chamber, a turbine power generation system, a radar altimeter, an infrared camera, an airflow velocity sensor, and a control unit. It also includes a bottom energy-concentrating component installed at the lower end of the air chamber and equipped with a transmission mechanism. A horizontal bottom plate and two symmetrically arranged energy-concentrating plates reflect and guide seawater at the bottom of the air chamber, concentrating energy beyond the width of the air chamber. The transmission mechanism synchronously controls the opening and closing of the energy-concentrating plates, changing the amount of seawater entering the air chamber at the inlet. This wave energy generation system can adjust the oscillation intensity of the water column in the air chamber according to changes in sea waves, ensuring that the generated airflow velocity matches the optimal operating frequency of the turbine power generation system, guaranteeing the power generation efficiency of the device. It also protects the oscillating water column wave energy generation device from wave impacts.

The invention discloses an oscillating water column type wave energy power generation device based on a Helmholtz resonance principle, and belongs to the technical field of ocean renewable energy sources. The device is composed of a caisson type structure, a wave gathering water channel, an air chamber set, a gradually-shrinking and gradually-expanding channel set, a one-way air valve set and an air turbine unit. The air chamber group is formed by connecting a plurality of air chambers in series, and gradually-shrinking and gradually-expanding channels are respectively arranged in the air chambers; when a wave crest acts, a water column moves upwards to push air in the main air chamber to enter the auxiliary air chamber through the gradually-shrinking and gradually-expanding channel; when the wave trough acts, the one-way gas valve is opened under the action of gas thrust moving downwards, most of gas in the auxiliary gas chamber returns to the main gas chamber through the valve, and a small part of gas returns to the main gas chamber through the gradually-shrinking and gradually-expanding channel; by means of water resonance induced by the wave gathering water channel and the pulse jet effect caused by the gradually-shrinking and gradually-expanding channel, the energy capturing efficiency of the wave energy device in the energy conversion process of each stage is remarkably improved, the structure is simple, and the maintenance cost is low.

The utility model discloses an oscillating water column type wave power generation device which comprises a cavity and an air turbine power generation device, and the air turbine power generation device is communicated with the cavity and is configured to generate power under the action of air pressure difference. The device further comprises a wave frequency monitoring device, a driving device, a controller and a first plate. The first plate is arranged in the cavity, and the first plate is configured to be movable to change the capacity of the cavity; the driving device is connected with the first plate and is used for driving the first plate to move; the controller is electrically connected with the wave frequency monitoring device and the driving device. Due to the adoption of the technical scheme, compared with the prior art, the capacity of the cavity is changed by moving the first plate, and then the fundamental frequency of the cavity is changed to enable waves in the cavity to achieve resonance, so that the movement amplitude of the waves in the cavity is increased, and the power generation efficiency of the oscillating water column type wave energy power generation device is improved; and efficient work of power generation equipment is ensured.

The invention belongs to the field of energy utilization equipment, and relates to a magnetic coupling nautilus type variable cross-section oscillating water column type wave energy power generation device which comprises a nautilus type variable cross-section air chamber, an electromagnetic vibration power generation system and an adjustable ballast tank. The top is connected with the turbine system; the movable section of the outer wall of the air chamber is composed of a hollow cylindrical pipe, a semicircular section plate, a movable connecting rod and a spring piston system, and the semicircular section plate is hinged to the inner wall of the hollow cylindrical pipe; the electromagnetic vibration power generation system is coupled to a movable section of the outer wall of the air chamber, a power generation coil is wound on a hollow cylindrical pipe, and a permanent magnet is arranged on a movable connecting rod; and a water suction pump is mounted at the lower part of the adjustable ballast tank. According to the device, the resonant frequency accurately matched with the sea wave period can be generated according to the change of sea waves, the device can better adapt to the wave change, optimal wave energy capture is achieved, and therefore the OWC technology which is high in energy conversion rate and accurately matched with the sea wave period is achieved.

The present invention relates to the field of offshore engineering and specifically discloses a submerged dike oscillating water column type wave-breaking power generation device, which includes a power generation device body and an L-shaped submerged dike. The power generation device body includes an air chamber and an air turbine. The air chamber is a square hollow cylinder with an opening at the bottom end and an air hole at the top end. The air turbine is arranged in the air hole and converts the kinetic energy of the air flowing through the air hole into electrical energy. The air chamber is fixed to an offshore platform, the air hole is arranged above the sea surface, and the opening is arranged below the sea surface. The seawater forms a water column in the air chamber. The L-shaped submerged dike is arranged below the air chamber, the horizontal side of the L-shaped submerged dike is flat on the seabed, and the vertical side of the L-shaped submerged dike is perpendicular to the seabed and located on the side of the rear wall of the air chamber. The present invention not only significantly enhances the wave-breaking performance of the device under full wave cycles, effectively protecting the coast from erosion, but also utilizes the wave reflection characteristics of the submerged dike to improve the energy conversion efficiency of the oscillating water column wave energy power generation device under long wave cycles.

A main body structure of the marine culture net cage depends on a traditional marine semi-submersible culture net cage, the head wave side of the marine culture net cage is transformed, structures such as a wave blocking wall, a head wave wall and an oblique angle wave gathering buoyancy chamber are mainly added, an air chamber suitable for oscillating water column wave energy power generation is formed, and an air channel is formed in the side edge of the top of the air chamber; meanwhile, a pneumatic wave energy conversion system is additionally arranged and comprises a fixed guide vane, an impact type air turbine, a coupler, a permanent magnet generator and the like. By means of the arrangement, the semi-submersible type aquaculture net cage is slightly transformed, the main body structure and functions of the semi-submersible type net cage are reserved, the high-power wave energy power generation function is added, and the power supply capacity of the semi-submersible type aquaculture net cage is improved; compared with an existing oscillation floater type wave energy power supply aquaculture net cage, the risk that the oscillation floater and the semi-submersible type base body mechanism move too much relative to each other under the condition of heavy waves to cause collision damage can be reduced, and a wave energy conversion system is simplified in structure and convenient to maintain.

The invention discloses a double-body structure wave energy observation buoy and method suitable for a wide-area networking marine ranch cluster. The double-body structure wave energy observation buoy comprises an upper floating body, a lower floating body and a connecting mechanism between the upper floating body and the lower floating body. An ocean energy power generation device, ocean observation equipment and an energy management system are integrated in the upper floating body; the ocean power generation device comprises a wave power generation system, a solar power generation system and the like; the wave power generation system can comprise an oscillating float type device, an oscillating water column type device and the like. The method comprises the following steps: calculating hydrodynamic coefficients of the upper floating body and the lower floating body according to specific sea condition environmental parameters, combining a kinetic equation and adopting an optimization algorithm, taking the maximum value of the calculated average energy obtaining power of the upper floating body as an evaluation index, and calculating the energy obtaining power of the lower floating body according to the evaluation index. And selecting the lower floating body / connecting rope parameter as an optimal value when the average energy obtaining power of the upper floating body is globally maximum. According to the embodiment, the double-body type wave energy buoy with the high power generation effect under the given sea condition can be obtained, and the equipment carrying capacity of the ocean buoy is effectively improved.

The utility model discloses a mixed wave energy power generation device which comprises a floating body, the floating body comprises a first cavity, a second cavity, a third cavity and a fourth cavity, and the third cavity and the second cavity as well as the fourth cavity form a V-shaped groove used for placing an oscillating water column power generation mechanism; an air chamber is arranged on at least one opposite surface of the first cavity, the air chamber is communicated with the V-shaped groove through a communicating pipe, and a Wills turbine is arranged in the air chamber; fixed magnetic cores are arranged in the second cavity, the third cavity and the fourth cavity; the oscillating water column power generation mechanism comprises a movable magnetic core and an oscillating floater, and the oscillating floater can move up and down so as to cut magnetic induction lines between the movable magnetic core and the fixed magnetic core for power generation. By installing the M-shaped floating body, the main body of the device can adopt the M-shaped floating body configuration design, so that the stability and the wave resistance of the device are improved, the impact force of waves on the device is reduced, and the electro-mechanical conversion efficiency is high; the oscillating water column power generation mechanism utilizes medium-long wave energy, and the air compression ratio in the cavity is effectively improved.

An oscillating water column type wave energy power generation device with energy storage and valve control, the power generation device comprising: an air chamber, the lower end of the air chamber is completely open, and the upper end of the air chamber is provided with an opening; the air chamber is placed on the sea surface as a whole, when waves enter the air chamber, the water surface in the air chamber oscillates up and down, and the air in the air chamber reciprocates; a plurality of pneumatic check valves are arranged at the upper end of the air chamber, and are used for controlling the one-way flow of air flow in the air chamber; an energy accumulator comprising a positive pressure accumulator and a negative pressure accumulator is used for storing pneumatic energy; a pneumatic proportional valve is controlled by a controller to adjust the size of the opening of the air chamber; an air turbine is a one-way impact type air turbine, and when the one-way air flow passes through the turbine, the turbine rotates in one direction; and a generator is connected to the air turbine through a shaft coupling, so that the generator generates electricity when the air turbine rotates.

This invention provides a large-scale floating platform wave energy power generation device integrated with aquaculture cages, relating to the field of wave energy power generation technology. It includes a floating mounting section, on which an oscillating water column section is installed. The oscillating water column section is used to generate electricity via wave energy. A floating isolation component is installed inside the oscillating water column section. The floating isolation component is used to clean the oscillating water column section. An exhaust section is installed on the oscillating water column section, and the exhaust section is connected to the floating isolation component. An overpressure buffer component is installed on the oscillating water column section. The floating isolation component can isolate the liquid surface within the oscillating water column shell, preventing splashing of seawater during rises and falls or overflow due to strong waves. The floating box can also be used to isolate the seawater below. This solves the problem that current wave energy power generation devices cannot easily achieve automatic seawater isolation and self-cleaning maintenance without affecting normal wave energy power generation.