The present disclosure provides a system and method of producing unidirectional motion from a multidirectional source using magnets strategically placed to reduce the necessity of some physically interacting parts. Smoothened unidirectional motion can accomplish usable work in many applications.

A wave energy converter (WEC) system includes a float, a drivetrain, a reaction structure coupled to the drivetrain by at least one tendon, and a power dissipation system coupled to the drivetrain. The power dissipation system is configured to manage peak loads in the WEC system by dissipating peak energy spikes caused by relative movement of the reaction structure and the float.

Various examples of simultaneous ocean wave and current energy harvesting are described, using a hybrid ocean energy converter and a mechanical transfer system therefor. In one example, a hybrid ocean energy converter includes a two-body point absorber comprising a first body and a second body. The two-body point absorber can be configured to transfer a linear relative motion between the first body and the second body to bi-directional rotation of a first input shaft. A turbine can be configured rotate a second input shaft. The converter further includes a hybrid power takeoff including a mechanical transfer system configured to mechanically couple the first input shaft, the second input shaft, an output shaft, and an output shaft.

Various examples of simultaneous ocean wave and current energy harvesting are described, using a hybrid ocean energy converter and a mechanical transfer system therefor. In one example, a hybrid ocean energy converter includes a two-body point absorber comprising a first body and a second body. The two-body point absorber can be configured to transfer a linear relative motion between the first body and the second body to bi-directional rotation of a first input shaft. A turbine can be configured rotate a second input shaft. The converter further includes a hybrid power takeoff including a mechanical transfer system configured to mechanically couple the first input shaft, the second input shaft, an output shaft, and an output shaft.

An energy harvesting device based on wave energy comprises: a box body; a swing rod hinged with the box body, wherein one end of the swing rod extends into the box body, and a float is fixed at the other end of the swing rod; a base layer disposed inside the box body and provided with a plurality of piezoelectric patches in a length direction; and an energy transmission assembly fixed inside the box body and located between the swing rod and the base layer, one side of the energy transmission assembly is connected with one end of the swing rod extending into the box body, and the other side of the energy transmission assembly is in transmission connection with the base layer, wherein the energy transmission assembly converts the swinging of the swing rod into squeezing to the base layer.

An energy harvesting device based on wave energy comprises: a box body; a swing rod hinged with the box body, wherein one end of the swing rod extends into the box body, and a float is fixed at the other end of the swing rod; a base layer disposed inside the box body and provided with a plurality of piezoelectric patches in a length direction; and an energy transmission assembly fixed inside the box body and located between the swing rod and the base layer, one side of the energy transmission assembly is connected with one end of the swing rod extending into the box body, and the other side of the energy transmission assembly is in transmission connection with the base layer, wherein the energy transmission assembly converts the swinging of the swing rod into squeezing to the base layer.

A deep-sea multi-energy integrated platform for complementary power generation, production, living and exploration includes a platform body and a sustainable power supply system, where the platform body includes a column cabin, an upper platform housing, a lower platform housing and a current guide column; the column cabin, the current guide column, the lower platform housing and the upper platform housing are mutually connected to form a triangular platform with a hollow cavity, and a net is disposed in the hollow cavity to form a mariculture zone; the sustainable power supply system includes a wind-driven generator disposed at an end of a top surface of the upper platform housing, a solar panel disposed above a middle portion of the top surface of the upper platform housing, a wave power generation apparatus disposed on the current guide column, and several tidal current power generation apparatuses.

A deep-sea multi-energy integrated platform for complementary power generation, production, living and exploration includes a platform body and a sustainable power supply system, where the platform body includes a column cabin, an upper platform housing, a lower platform housing and a current guide column; the column cabin, the current guide column, the lower platform housing and the upper platform housing are mutually connected to form a triangular platform with a hollow cavity, and a net is disposed in the hollow cavity to form a mariculture zone; the sustainable power supply system includes a wind-driven generator disposed at an end of a top surface of the upper platform housing, a solar panel disposed above a middle portion of the top surface of the upper platform housing, a wave power generation apparatus disposed on the current guide column, and several tidal current power generation apparatuses.

The method and apparatus disclosed herein conveys a wave energy converter (WEC) that comprises a strategically placed magnetic coupler that selectively transfers motion to a power takeoff (PTO) system so as to not damage components within the buoy during severe wave conditions, while still always allowing motion to be transferred to/from a restorative mechanism of the WEC so that the excitation and restorative motions of the wave energy converter are uninhibited by said selective transfer of motion to the PTO.

The method and apparatus disclosed herein conveys a wave energy converter (WEC) that comprises a strategically placed magnetic coupler that selectively transfers motion to a power takeoff (PTO) system so as to not damage components within the buoy during severe wave conditions, while still always allowing motion to be transferred to/from a restorative mechanism of the WEC so that the excitation and restorative motions of the wave energy converter are uninhibited by said selective transfer of motion to the PTO.