The present invention provides a controller for a pendulum type wave-power generating apparatus. Electric power produced by wave-power generation has been pointed out as being of low efficiency and more expensive than wind-power generation. To overcome the above problems, the present invention uses resonance and impedance matching of the sea waves, thus making it possible to markedly enhance the efficiency of wave-power generation. The present invention does not use a wave-height meter which is generally expensive and controls the generating apparatus in response to variation of the conditions of the sea, thus automatically maintaining the resonance and impedance matching operation, thereby making high-efficiency operation possible. As a result, the cost of the wave-power generation can be reduced, so that the wave-power generation can be widely commercialized.

A device is provided that converts random movement of extrinsic oscillation into purposeful movement, such as torque or other motion that can be used to generate electricity. This device may include but is not limited to two major components: 1) a collection unit and 2) a transmission unit. The collection unit represents the interactive part of the device that interfaces with an extrinsic body which provides the randomized kinetic motion that drives an articulating arm, and may include a series of connected pivoting arms of different lengths. The transmission unit is the portion of the device that converts the random motion of the articulating arm into unidirectional rotation of a shaft that is converted into purposeful torque. The device may be placed in almost any type of environment to take advantage of any type of kinetic motion, including water, wind, mechanical movement and even human movement.

A wave power generation device, including a power generation assembly, a mooring system, a floating platform, floating towers, control cabins, a connecting member, and anti-sway plates. The floating platform is a square floating box. The power generation assembly includes a swing plate, a hydraulic cylinder, an energy accumulator, a hydraulic motor, a generator, a battery, and a power generation and distribution device. The floating platform includes a main deck. The main deck includes a manhole and a support for supporting the swing plate. The swing plate is connected to the support via a first hinge. One end of the hydraulic cylinder is connected to the swing plate, and another end of the hydraulic cylinder is connected to a floating platform. The mooring system includes four anchor windlasses. A method for operating and maintaining the wave power generation device is also provided.

A wave barrier or wave terminator type ocean wave energy converter (WEC) utilizing one or multiple adjacent floats together forming an elongated wave front parallel (EWFP) float rotatably connected by at least one swing or drive arm to a secondary floating or shore or seabed fixed body or frame, such that the at least one swing arm is rotating about a submerged pivot point or axle on such body or frame and constraining the motion of the float(s) relative to the body or frame when wave forces are applied against the float(s). Relative to the direction of oncoming wave fronts and relative to the still water line (SWL), the at least one EWFP float is substantially forward of, and above, the pivot point such that the float concurrently moves both upward and rearward on wave crests and returns both forward and downward on ensuing wave troughs. The rear surface of the EWFP float is substantially arcuate and concave with a radius approximating its distance from the pivot point such that the float produces minimal energy consuming back waves when it is being moved by oncoming wave forces. The lower rear arcuate surface of the float can extend below the bottom of the float deeper into the water column to capture additional wave energy.

The object of the invention is a method for installing and servicing an apparatus module recovering the kinetic energy of water; and the apparatus module itself. The apparatus module with wave energy recovering units is descended into the sea bottom and is kept steady at the sea bottom by the help of its own mass and the mass of the water filled into a plurality of soft and hard compartments and valve compartments in the body of the apparatus module. Correspondingly the apparatus module is lifted into the surface of the water and made floating by the help of air that is blown to the plurality of soft and hard compartments and the valve compartments in order to replace the water.

A wave power converter for converting energy from waves including a wave power converter housing with a bottom and a top between which there is a distance limiting structure, and through which there is a central axis, and wherein entirely or partially outside the wave power converter housing there is at least one preferably elongated paddle having a longitudinal direction of a first generatrix and a lower end and an upper end, and which via a first connection to a first power converter with a rotary axis at an angle, preferably at right angles, to the central axis and fastened to the wave power converter housing at the top is provided.

A renewable energy generation method includes: a first production process in which electric power is produced by converting wave energy into electrical energy using a plurality of power generators having the shape of a roly-poly-like capsule that floats in a sea; a storage process in which the electrical energy produced in the first production process is stored in a first hub connected to the power generators; and a transportation process in which the electrical energy stored in the first hub is transported to a predetermined place by use of a transportation.

A hybrid bifurcating wave energy converter (WEC) is described. The hybrid bifurcating WEC may be capable operating in various orientations with various degrees of rigidity and/or flexibility. The amount of rigidity or flexibility may be based on the intended mode of operation and the intended operational environment. In some embodiments, the hybrid bifurcating WEC may utilize distributed embedded energy converter technologies and folding, origami-like mechanics. In this way, the overall shape, form, and function of the hybrid bifurcating WEC may be governed by a structure with hinges, bends, and/or joints with the ability to fold and unfold in some embodiments being controlled by the distribution and embedding of many relatively small energy converters (i.e., generators).

A wave driven variable leverage pump for water desalination is disclosed. According to one embodiment, a variable leverage pump comprises a platform and a paddle comprising at least one lever arm extending therefrom. The at least one lever arm is pivotally coupled with the platform. The pump further comprises a pump having a first end pivotally coupled with the platform, and a second end pivotally coupled with the paddle. A pivot point of the at least one lever arm is located above a pivot point of the pump relative to the platform.

An apparatus is for producing electricity from a moving fluid, wherein the apparatus has: an elongated body having a longitudinal axis, the elongated body being arranged to be attached to the ground or seabed and exposed to the moving fluid; at least one tensioned cable, which is supported in tension from the elongated body, and which is arranged at least in part inside the elongated body and further arranged to oscillate or vibrate upon oscillation of the elongated body; and at least one energy harvester for converting kinetic energy of the at least one oscillating or vibrating tensioned cable to electric energy.