Provided is a smart wheel cap for a vehicle, including: a front cover emitting light to the outside and including a cover body and an LED light emitting window mounted on a front border of the cover body; a cap including a cap-shaped cap body which is mounted on a back side of the front cover, and has the back side opened, and is transparent or translucent and a primary bearing mounted on a front inside of the cap body; a generator unit including a stator unit mounted on the back side of the cap and not rotating together with the front cover or cap and a rotor unit rotating together with the front cover or cap; and a rear cover coupled with the front cover and fixing locations of the cap and the generator unit, and having a mounting hook mounted on a wheel, provided on a back.

A method of installing a wind turbine (10) at an offshore location. The wind turbine (10) includes a tower (18) and an energy generating unit (16). The tower (18) is configured to be secured to a transition piece (12, 42). Prior to shipping, the method includes electrically coupling electrical devices and/or systems (52) by cables (54) to energy generating unit (16) or wind turbine tower (18) or a test dummy therefor. The electrical devices and/or systems (52) are configured to be attached to transition piece (12, 42) once the tower (18) is installed. The method includes testing and commissioning the electrical devices and/or systems (52) while electrically coupled to the cables (54). Prior to shipping and after testing and commissioning, the method includes storing the electrical devices and/or systems (52) and attached cables (54) inside the tower (18). The cables (54) are long enough to permit the electrical devices and/or systems (52) to be attached to the transition piece (12, 42) without disconnecting the electrical devices and/or systems (52) from the cables (54).

An offshore wind turbine with anti-accumulation of aquatic organisms, comprising: a base with an interior space, the base being made of conductive material; a tower incorporated above the base; a nacelle, connected to the tower; a plurality of blades, each interconnected with the nacelle; and a power supply system electrically connected to the base and disposed within the interior space, the power supply system being used to provide electrical energy to the base to energize the surface of the base to form an electric field.

The invention discloses a convenient human and animal power drive permanent magnet power generation and storage system, comprising a grip power drive power generation system; the grip power drive power generation system is a dumbbell-shaped grip power generation device, comprising a grip handle and power generation devices provided at both ends of the grip handle; the power generation device is composed of a permanent magnet generator, a tensioning wheel, a spring sheet, a winder ratchet device, and a battery; folding buckles are provided between the power generation devices at both ends and the grip handle so as to be folded inward. The invention solves the problem of continuous power guarantee of wearable intelligent device; in the invention, the grip-type slow gear is designed as a spring tensioning device similar to a mechanical watch; the stress generated during the grip tightens the spring.

A nacelle that forms part of a wind power installation and is configured to be installed on a tower of the wind power installation, has an installation transformer that is configured to transform electrical power generated by the wind power installation for feeding into a medium-voltage grid, and has an electrical interface for connecting at least one medium-voltage line, wherein the line runs through the tower of the wind power installation into the nacelle, and also has a pulling device that is installed in the nacelle and comprises a pulling means, which is configured to pull the line into the nacelle for connection to the electrical interface, and has a supporting structure that is installed in the nacelle, has a receiving region for the pulling means or the line and is configured to keep the line within a predetermined bending radius in the receiving region. The supporting structure has a number of rollers that are mounted on the supporting structure so as to be able to move back and forth between an advanced, first position and a retracted, second position, wherein, in the first position, the number of rollers extend further into the receiving region than in the second position.

A method and apparatus for selectively releasing at least one retaining element during a pull-in process that locates a rigid support body at a predetermined location with respect to an aperture in a wall of a facility are disclosed. The apparatus comprises: a rigid support body comprising a through bore that extends through a length of the support body and through which a flexible elongate member is locatable; at least one latch arm slidable along a respective axis of sliding with respect to the support body; and for each latch arm, an abutment element that moves with the latch arm and is disposed to abut with a portion of a wall of a facility when the support body is located through an aperture in the wall of the facility; wherein the latch arm is disposed to respectively slide in a first direction of motion away from a retaining element supported on the rigid support body when the rigid support body passes through the aperture to thereby release the retaining element from a storage position when the retaining element is within the facility.

A method, system, apparatus, and/or device for generating electrical power from a solar cell and rotational energy from a blade of a wind turbine. The method, system, apparatus, and/or device a blade of a wind turbine, a solar cell, and a rotor system. The blade may be blade configured to catch wind from a surrounding area to rotate the blade and convert kinetic energy into rotational energy. The solar cell may be connected to an exterior surface of the blade. The solar cell may be configured to convert solar energy into electric energy. The rotor system may be electrically connected to the solar cell to receive the electric energy from the solar cell. The rotor system may be configured to remain stationary relative to the blade as the blade rotates about an axis. The rotor system is configured to send the electric energy to a power source.

A rotor blade for a wind turbine includes a blade skin forming a suction surface and a pressure surface. An electric heating arrangement has a heating strip with a width-thickness relation configured to reduce bonding between ice and the blade skin by electrically heating a respective surface of the blade skin and to conduct lightning-strike currents of at least 10 kA. An energy transfer arrangement supplies electrical energy to the heating arrangement. An integrated lightning arrangement includes a lightning receptor mounted to a tip section of the blade and electrically connected to the heating strip such that the lightning strike is conducted from the lightning receptor to the heating strip. A grounding device is connected to a grounding arrangement of the wind turbine such that electrical energy of the lightning strike is conducted from the heating strip through the grounding device and into the grounding arrangement.

A lightning protection system for a wind turbine blade having-a structural element made of fiber reinforced polymer (FRP). The lightning protection system includes a first down conductor extending from a tip end to a tip connection block and a second down conductor extending from the tip connection block between and along the structural element and a pressure side towards a root connection block. A third down conductor extending from the tip connection block between and along the structural element and a suction side towards the root connection block. The second down conductor includes a first expanded foil or a first mesh and the third down conductor includes a second expanded foil or a second mesh. The first expanded foil or first mesh and the second expanded foil or second mesh include a plurality of conductive connection points arranged in the vicinity of the tip and root connection blocks.

The present disclosure relates to a current transfer element (100) configured to be mounted on a first component (300) of a machine, the machine comprising a second component (200) configured to rotate with respect to the first component and the second component comprising an electrical conductor. The current transfer element (100) comprises a floating conductor assembly, and a support (120), and the floating conductor assembly comprises a floating chassis (111) resiliently connected to the support (120), the floating chassis arranged on a roller (112) which is configured to contact the second component (200), and carrying a floating conductor (113) configured to transfer current from the electrical conductor of the second component (200). The present disclosure further relates to generators and electrical machines comprising floating conductor assemblies, and direct drive wind turbines comprising such generators.