Absstract of: US2024287960A1
A buoyant wave energy device is disclosed that incorporates an open-bottomed tube of substantial length in which is partially enclosed a first body of water that oscillates in response to wave action. The device incorporates a buoy to which an upper end of the tube is connected and inside of which is trapped a second body of water of substantial mass. A differential phase in the oscillations of the water trapped in the tube, and the oscillations of the buoy of augmented mass, result in the periodic compression of a pocket of air trapped at the top of the tube, and in the subsequent expulsion of pressurized air through a turbine, thereby generating electrical power.
Absstract of: EP4421310A1
An object of the invention is to provide a power generation system capable of generating electricity at low cost. There is provided a power generation device that generates electricity using a potential energy of a fluid raised to a predetermined height position by a wave force, the device including: a housing 1 that floats, the housing 1 including a front side opening portion 16 for taking a wave into an inside of the housing 1 on a front side of the housing 1; a float accommodated in the housing 1; a feeding device that feeds the circulation fluid toward the predetermined height position based on a wave force received by the float due to the wave taken into the inside of the housing 1 through the front side opening portion 16; a power generation unit that generates the electricity using the potential energy of the circulation fluid raised to the predetermined height position; and a suppressing member that suppresses a swing of the housing 1 caused by a wave of a predetermined wave height or more by causing at least a part of the housing 1 to submerge in water when the suppressing member receives the wave.
Absstract of: GB2627607A
Provided is a wave energy power generation device, comprising a working platform (1), and a wave energy conversion mechanism (2), a wave energy storage mechanism (3) and a wave energy power generation mechanism (4), which are arranged on the working platform (1). By means of the structures, such as a buoyancy tank (211), a lever (212), a gear set and a flywheel (233), the wave energy conversion mechanism (2) converts wave energy, which is generated by wave fluctuation, into mechanical energy ensuring the continuous rotation of the flywheel (233). The wave energy storage mechanism (3), by means of compressed gas, collects and stores the wave energy. The wave energy power generation device realizes the effective utilization of the wave energy; and by means of the provision of the buoyancy tank (211) and the lever (212), the energy generated by the heave motion of the buoyancy tank (211) due to up-and-down floating can be effectively collected, such that the energy conversion efficiency is improved; and the wave energy storage device (3) converts the generated mechanical energy into the internal energy of high-pressure gas, and then releases the high-pressure gas to drive an air turbine (41) and a generator (42) to operate, such that the generator (42) can be persistently and stably supplied with energy, thereby ensuring the stable operation of the generator (42).
Absstract of: EP4421309A1
An object of the invention is to provide a power generation system capable of generating electricity at low cost. There is provided a power generation device that generates electricity using a potential energy of a circulation fluid F raised to a predetermined height position by a wave force, the device including: a float 27 that includes a hollow portion 27A; a feeding device 24 that feeds the circulation fluid F toward an upper storage tank 21 at the predetermined height position based on a wave force received by the float 27, the feeding device 24 being accommodated in the hollow portion 27A of the float 27; and a power generation unit 23 that generates the electricity using the potential energy of the circulation fluid F raised to the predetermined height position, wherein a lower portion of the float 27 protrudes such that a cross-sectional area in a horizontal direction decreases as the floating body extends downward, the device further including a storage tank-side accommodation portion 2 that accommodates the float 27, the feeding device 24 and the power generation unit 23.
Absstract of: WO2023068937A1
A wave power generator system (1), comprising a foundation (4) and a deck (2) arranged on the foundation, a wave power generator arrangement comprising a first and second main wire (13, 14) extending between the deck (2) and the seabed (B), a buoyancy arrangement (7) comprising a floating device (16), a first generator sheave (17) at the deck (2), a second generator sheave (18) below the sea surface (S), and a generator wire (15). The generator wire connects to the floating device and extends in a loop via the first and second generator sheaves. The floating device is moved by waves along the first and second main wires, causing the generator wire (15) to rotate the first generator sheave (17). A first generator (G) is operationally connected to the first generator sheave to generate power from the rotational movement of the first generator sheave.
Absstract of: US2024263608A1
An indirect hydraulic load hierarchical control system and method for a wave energy device includes a first hydraulic cylinder group, a second hydraulic cylinder group, a third hydraulic cylinder group, a high-pressure energy accumulator group, a pressure detection control module, a first hydraulic power generator set, a second hydraulic power generator set and a third hydraulic power generator set. A detection end of the pressure detection control module is used for acquiring an internal pressure of the high-pressure energy accumulator group, comparing the internal pressure with a preset pressure level, and respectively controlling the on-off of reversing valves and electromagnetic valves according to a comparison result. The present invention has the beneficial effects that all hydraulic loads can be automatically loaded or automatically unloaded, so that the wave energy device operates in a full load state or in an optimal energy conversion efficiency state.
Absstract of: US2024280073A1
A method for harnessing wave energy includes providing a vehicle to a body of water, the vehicle. The method includes submerging the vehicle to a depth in the body of water. The method includes operating the motor-generator of the vehicle in the first quadrant of the motor-generator. The method includes detecting a phase of a wave in the body of water based information from the processor of the detected phase. The method includes orienting the vehicle to lag the phase of the wave based on the detected phase of the wave. The method includes synchronizing an inertial acceleration of the vehicle to movement of the wave. The method includes switching the motor-generator to the second quadrant for generation mode to convert energy from the movement of the wave to electrical energy. The method includes storing the energy from the wave in the rechargeable battery source.
Absstract of: WO2024173267A1
Embodiments disclosed herein include a vessel for floating and traveling adjacent to an upper surface of a body of water. In an embodiment, the vessel comprises a support structure, a first floatation chamber coupled to the support structure, a second floatation chamber coupled to the support structure, the second floatation chamber laterally spaced apart from and fluidly coupled to the first floatation chamber, and a third floatation chamber coupled to the support structure, the third floatation chamber laterally spaced apart from the first floatation chamber and from the second floatation chamber. In an embodiment, the vessel further comprises a robot system coupled to the support structure, where the robot system comprises an end effector and a nozzle head coupled to the end effector.
Absstract of: WO2024171165A1
A device for converting omni-directional fluid flow to unidirectional flow that can be provided in a combined breakwater and energy converter system to generate electricity from coastal waters. Concrete stators 8 form part of a barrier of a breakwater, the stators arranged about a central rotation chamber 6, with adjacent stators forming fluid channels 10 to the chamber, the chamber having a rotator with a central rotatable axle 2 mounted to at least two blades 4. The channels are funnelled to provide an entrance to the chamber greater in size than the exit into the chamber and the path of the channel exit vector is angled with respect to the central axle, being directed towards the blades. Omnidirectional wave flows can enter the channels and pass into the chamber to be converted into unidirectional flow to effect unidirectional rotation of the axle. This rotational movement is used for the generation of electricity.
Absstract of: WO2023057028A1
A wave power system for extracting energy from water waves, The wave power system includes a basic structure comprising at least one straight track section (1a, 1b, 1c); at least one effector (5) movably engaged with said basic structure and adapted for being moved by water waves along said straight track section (1a, 1b, 1c) in a travelling length between two stop locations; and an energy harvesting arrangement (8) arranged for harvesting energy from said relative movements between said effector (5) and said basic structure. The effector (5) includes a backbone structure comprising at least one support shaft having a support shaft axis. At least one winglet comprising a compliant portion is rooted to the support shaft and is turnable between operation modes comprising an acceleration mode an intermediate mode and a deceleration mode relative to the support shaft axis.
Absstract of: EP4417810A1
A device for converting omni-directional fluid flow to unidirectional flow that can be provided in a combined breakwater and energy converter system to generate electricity from coastal waters. Concrete stators 8 form part of a barrier of a breakwater, the stators arranged about a central rotation chamber 6, with adjacent stators forming fluid inlets 10 to the chamber, the chamber having a rotator with a central rotatable axle 2 mounted to at least two blades 4. The inlets are funnelled to provide an entrance to the inlet greater in size than the exit into the chamber and the inlet vector is angled with respect to the central axle, being directed towards the blades. Omnidirectional wave flows can enter these inlets and be converted into unidirectional flow to effect unidirectional rotation of the axle. This rotational movement is used for the generation of electricity.
Absstract of: WO2024167833A2
A system for generating electricity from an underwater stream for generating electricity for the electric grid or for producing hydrogen includes an underwater turbine. The underwater turbine includes an upper pontoon, a lower pontoon, and a pylon structure that extends between and interconnects the upper pontoon and the lower pontoon. The underwater turbine also includes a single propeller assembly rotatably coupled to the lower pontoon. Rotation of the propeller operates a generator to generate electricity. The underwater turbine can be moored to a sea floor via a mooring weight. An optional friction winch is operable to raise or lower the underwater turbine relative to the sea floor.
Absstract of: US2024271592A1
A concave hermetic air/brine encapsulating vessel, or cap 10, positioned in the sea at a chosen area according to tidal range. Wherein the open underside of the vessel allows brine/sea water to freely enter or exit the vessel and the tide rises and falls respectively. This rise and fall of the brine within the vessel will result in changes to the air pressure within the vessel, as the air because pressurised as the brine rises, and forms a vacuum with the vessel as the brine falls. These changes in pressure are used to operate a pneumatic actuator 60, via a suitable system of valves 50,52 coupled to the inlets and/or outlets of a pipe couple to a vent 30 on the upper portion of the vessel, or within a plurality of pipes couple to a manifold 40 coupled to the vent 30. Wherein the operation of the pneumatic actuator 60 powers a generator 62 for producing and storing power.
Absstract of: WO2024166138A1
The present disclosure discloses a vehicle (100) for power generation, transmission and storage is disclosed. The vehicle (100) comprises a frame (1), a body (2), a plurality of power conversion units, a gear mechanism (500), a generator unit (600) and a control unit (3). The body (2) is disposed with a plurality of conversion units comprising a first conversion unit (200), a second conversion unit (300) and a third conversion unit (400). The gear mechanism (500) is coupled to at least one of the first conversion unit (200) and the second conversion unit (300) and is configured to receive, convert and transmit motion from at least one of the first conversion unit (200) and the second conversion unit (300). With such configuration, the vehicle (100) may generate continuous power from tides and wind energy without substantial interruption in power generation.
Absstract of: WO2024166128A1
A unidirectional sea wave energy system is disclosed for generating electricity. The system comprises a turbine positioned in an area of unidirectional sea waves, a gear box coupled to the turbine for adjusting the rotation speed, a variable speed generator connected to the gear box for converting the kinetic energy of the turbine into electrical energy, a power converter for converting the generated electrical energy into a required voltage and frequency, and a power grid connection for transmitting the converted electrical energy to a power grid. The slots are created on the sea bay at one-meter intervals to for the return wave water diversion to the chamber. The turbine, gear box, variable speed generator, power converter, and power grid connection are designed to work together in an efficient and cost-effective manner to convert the energy of unidirectional sea waves into electricity that can be easily integrated into existing power systems.
Absstract of: EP4414551A1
The present invention relates to a tide current power generation device using a tidal current induction hydraulic pipeline and a tidal current power generation tube turbine for using both directional flood and ebb tides to implement power generation, and achieving a multi-layer and parallel structure in the water to build a large-scale tidal power generation complex. To this end, the device according to the present invention includes: a plurality of concrete pile; a support frame part; a tidal current power generation tube turbine; a tidal current induction hydraulic pipeline; a plurality of power transmission parts; and an upper plate part.
Absstract of: CN221524996U
本实用新型属于发电设备技术领域,具体涉及一种层叠式方柱发电单元及波浪能发电装置。其包括:组合框架、电极组、多个摩擦小球、导线以及封装层。其中,组合框架包括栅板和侧板;栅板相互插接呈网格状,内部形成多条相互平行的滑道。电极组包括第一电极和第二电极;第一电极和第二电极沿滑道中间断开。摩擦小球位于组合框架中的每条滑道中;利用两条导线分别连接组合框架中的第一电极和第二电极,作为发电输出端口。封装层采用绝缘材料,封装层包覆在组合框架的外部以密封内部结构。波浪能发电装置由浮体、多个发电单元和鳍片构成。本实用新型解决现有波浪能发电装置能量转换效率低、输出不稳定、成本较高的问题。
Absstract of: CN118481896A
本发明公开了一种推拉杆与悬臂梁组合式压电波浪能发电装置,包括壳体、浮子和压电装置,所述压电装置安装在壳体内,压电装置包括摆动装置、压电悬臂梁和电池箱,两组压电悬臂梁对称设置于摆动装置两侧并与摆动装置连接,所述压电悬臂梁通过导线与电池箱连接,所述浮子通过钢绞线与壳体内部的摆动装置连接,浮子运动从而驱动摆动装置运动,以使得压电悬臂梁振动变形,动能转换为电能,通过导线传输至电池箱内。该装置具有对波浪能敏感、转换不规则能量、能量吸收率高、发电效率高的特点,节能环保,用途广泛。
Absstract of: CN118481900A
本申请涉及波浪能利用技术领域,具体公开了一种二元储气式海洋波浪能利用装置,包括:装置主体、活塞与浮体;装置主体上设置有活塞腔、低压进气口、低压出气口、高压进气口、高压出气口与第一储气室;活塞可滑动设置于活塞腔内,且将活塞腔分隔成第一腔体和第二腔体;浮体可浮动设置于海面,且连接活塞;低压进气口连通装置主体的外部与第一腔体;低压出气口连通第一腔体和第一储气室;高压进气口连通第一储气室和第二腔体。本方案提供的二元储气式海洋波浪能利用装置能够在活塞腔中将气体多次压缩,实现提高压缩效率且无需外置其他压缩结构,使得整体结构更简单且紧凑。
Absstract of: CN221524995U
本实用新型公开了一种海浪波动发电装置,包括固定台;固定台的上表面的左右两侧均安装有固定法兰,两个固定法兰的前后两侧表面均安装有发电箱,多个发电箱的内壁均设置有传动组件,两个固定法兰内壁的前后两侧均开设有密封口,多个密封口的内壁均安装有密封环;本实用新型通过海浪起伏拍打漂浮体的左右两侧表面,带动滑动板和锁链拉动齿轮带在限位板的内壁移动,从而带动转动轴和限位板在转动口的内壁转动,使得限位板和滑动板随着海浪的方向摆动,从而减少了海浪的侧拍力对设备造成的损坏,同时通过拉动齿轮带左右移动,从而带动两侧的密封环一起转动,从而多个发电机和从动轮一起产生机械能,通过多台一起发电提高了发电效率。
Absstract of: CN118481899A
本发明公开了一种用于气垫船体临岸供能的自动化浪流发电储能平台系统,属于气垫船供能系统技术领域,其包括发电机主体,内置设有磁感组件和储能组件;伸缩传动臂,旋转于发电机主体;导向传动结构,包括配重体和气囊浮体;配重体与伸缩传动臂旋转装配相连,且配重体与气囊浮体固接装配相连设置;风控组件结构,具有抽气端和出气端;抽气管路结构,与风控组件结构接通相连设置;注气管路结构,与风控组件结构的出气端接通设置;浮体主气路结构,与气囊浮体连通设置,且浮体主气路结构分别与抽气管路结构和注气管路结构接通设置。解决了现有技术中难以充分利用波浪大且频繁的波动幅度特性进行发电以作为气垫船作业的续航储备供能电源的技术问题。
Absstract of: CN118481898A
本发明公开了一种适用于低频振动的高效率磁性液体波浪能转换器,包括:内设密封腔的内壳体,位于密封腔内的磁性液体、质量块和滚珠,设置于内壳体外的线圈、第一软磁块、阻力件、压电组件和第一永磁体;所述质量块位于活动的第一永磁体之间,质量块和第一永磁体呈现磁性排斥力;所述滚珠位于质量块和内壳体之间,防止质量块和内壳体的接触;所述第一永磁体位于阻力件之间,阻力件作用于第一永磁体的力指向质量块。本发明利用磁性液体和滚珠减小质量块的摩擦阻力、利用第一软磁块和第一永磁体减小固有频率并增加输出电压、采用压电组件提高输出电压并改变回复力的线性度,提高了磁性液体波浪能转换器在低频、微弱波浪工况下的电能转化效率。
Absstract of: CN118462459A
本申请涉及一种海洋能收集装置,其包括:柱状外壳以及安装在柱状外壳内部的摩擦纳米发电机;用于驱动摩擦纳米发电机进行发电的第一轴体,第一轴体沿柱状外壳的轴线分布且转动安装在柱状外壳上;与第一轴体垂直的第二轴体,第二轴体转动安装在柱状外壳的一端;用于连接第一轴体和第二轴体的传动机构,传动机构被配置为第二轴体向任意方向旋转时均能够驱动第一轴体向目标方向旋转;能量吸收机构,能量吸收机构包括浮板,浮板被配置为在摆动时带动第二轴体旋转。该海洋能收集装置具有比较高的海洋能收集效率,解决了目前的海洋能收集装置对海洋能的收集效率低下,导致摩擦纳米发电机的平均发电功率较低的问题。
Nº publicación: CN118462461A 09/08/2024
Applicant:
广州航海学院
Absstract of: CN118462461A
本发明公开了一种海蛇型波浪能发电装置,包括至少三个沿第一方向依次布置的浮板,其中位于沿第一方向相对前端的至少两个浮板的相对后端凹设有凹槽,凹槽内设置有中心轴,与带有凹槽的浮板相邻的浮板的相对前端凸设有凸部,凸部转动连接在中心轴上;中心轴连接有发电组件,发电组件由中心轴旋转驱动进行发电;浮板带有凹槽的一端的外侧壁上设有用于浮设在水内的支撑组件,每个支撑组件均包括两个支架,两个支架沿第二方向间隔布置;每个支撑组件的两个支架之间设置有涡激振动机构,涡激振动机构位于中心轴的下方。本发明既能在深海或海浪较大的区域持续稳定地发电,又能在海浪较小的区域进行高效稳定地发电。