665 results about "Photovoltaic solar energy" patented technology

Systems, methods and apparatus are disclosed for using renewable energy sources as broadband AC to DC conversion. In one aspect, an apparatus configured for charging an electric vehicle is provided. The apparatus includes a power supply circuit configured to convert direct current received from a renewable power source into alternating current. The alternating current is having a frequency. The apparatus further includes a power transmit circuit configured to receive the alternating current from the power supply circuit and to provide power to charge the electric vehicle using the alternating current. The power transmit circuit is further configured to substantially resonate at the frequency of the alternating current.

A system and method to optimize the overall power output of a photovoltaic solar array. The solar panels are connected to software adjustable power optimizing devices, which in turn are connected to a mesh network with individual router devices. The individual router devices will send and receive data packets by creating or detecting vibrations in a solid vibration conducting media (such as the solar power wiring) that connects the individual photovoltaic solar panels. Often at least one centralized control device is used to periodically request sensor data packets from the individual router devices and solar panels. The centralized control device will typically compute the proper adjustments for the individual adjustable power optimizing devices that will optimize the overall power output from the photovoltaic solar array. The control device will then send adjustment data packets back to the individual router devices through the mesh network, thus optimizing overall power output.

A high efficiency, environmentally friendly system comprising a plurality of photovoltaic solar collecting panels (PV panels) is disclosed. The system comprises an outer frame to which a plurality of inner frames are mounted to which the plurality of PV panels are attached. To minimize shadowing by the outer frame upon one or more PV panels, at least one PV panel may extend beyond an endpoint of the main frame. The system also comprises an outer frame rotation actuator that rotates the outer frame and an inner frame rotation actuator that rotates the inner frames and the plurality of PV panels. The solar tracking array frames disclosed herein help to improve the quality of the environment by conserving a variety of energy resources (e.g., fossil fuels, hydroelectric energy, etc.) The solar tracking array frames disclosed herein also help to reduce greenhouse gas emissions, as solar tracking array frames do not produce carbon dioxide byproducts.

The present invention is that of a solar energy system that uses a light-guide solar panel (LGSP) to trap light inside a dielectric or other transparent panel and propagates the light to one of the panel edges for harvesting by a solar energy collector such as a photovoltaic cell. This allows for very thin modules whose thickness is comparable to the height of the solar energy collector. This eliminates eliminating the depth requirements inherent in traditional concentrated photovoltaic solar energy systems. A light guide solar panel has a deflecting layer, a light guide layer and a solar cell in optical communication with the light guide layer. The deflecting layer receives light at a first surface and inputs the light into the light guide layer. The light guide layer propagates the light to the solar cell, which is aligned generally parallel to the input surface.

A photovoltaic solar cell module comprises a plurality of bifacial solar cells and electrical conductors. Each bifacial solar cell comprises a plurality of bus-bar contacts. A phosphorous silicon glass layer is formed on one side of the bifacial cell by phosphorous diffusion, and a boron silicon glass layer is formed on the other side of the bifacial cell by boron diffusion. The phosphorous diffusion and the boron diffusion are conducted by a face-to-face diffusion method. The combination of the two gettering methods substantially increases the minority carrier life time of the bifacial solar cell.

The present invention proposes a hybrid methodology and apparatus between photovoltaic (PV) and concentrated photovoltaic (CPV) solar panels to lower the photovoltaic solar energy production cost. In particular, the disclosed methodology addresses a simple quasi-parabolic trough PV (QPTPV) low concentration system with greater tolerance to tracker pointing errors. The quasi-parabolic trough (QPT) reflector is defocused to cover the width of a linear solar cells array, which is reduced from a large rectangular solar cells panel. In summary, the QPTPV system consists of low cost quasi-parabolic reflectors, a compact linear PV cells array and a lower cost relaxed pointing 2-axes tracker. The combination of these low cost technologies disclosed can achieve the lowest cost per kilowatt hour of photovoltaic energy production.

A man-made island [10], adaptable for land-based or sea-based operation, holds an array of photovoltaic solar collectors [421] aligned with an array of linear Fresnel lenses [422], which concentrate solar radiation on the photovoltaic solar collectors [421]. The island [10] is rotatable to optimize the angular orientation thereof relative to the position of the sun. More particularly, the man-made island [10] uses a platform [12] that includes a large outer ring [14] that floats on a fluid, and a flexible cover [16] attached to the ring [14] to define an airtight volume [30] below the cover [16]. A plurality of rows [419] of supports [420] are located above the cover [16], and carry the photovoltaic panels [421]. A compressor or blower [32] creates an over-pressure within the enclosed volume [30] to assist in supporting the cover [16] and the other components mounted thereabove. The supports [420] use brackets [431] to mount the photovoltaic panels [421] in optimum orientation relative to the lenses [422], and also support cooling device, such as fins [433], or a heat exchanger [436], or a fiber-laden conduit [437], thereby to cool the corresponding photovoltaic panels [421] and to optimize efficiency.

In a solar module (1) comprising a plurality of individual solar cells (2) connected together electrically in series, with at least one solar cell (5, 6) exposed to the same conditions and not linked to the other solar cells, which serves as sensor of the instantaneous incident light on the solar module and with a switching device (8) able to be slaved at least indirectly to the sensor so as to act on the output electric power of the solar module, according to the invention, at least two solar cells (5, 6), which are disposed a large distance apart, are provided as sensors whose output voltages or currents are conveyed to an evaluation circuit (7) and are compared with one another by the latter, and the evaluation circuit (7) connects by means of the switching device (8) a shunt which bypasses the series circuit of the solar cells (2) of the solar module (1) when a difference which exceeds a threshold value exists between the outputs of the two sensors.

The invention discloses an automatic protection device of a photovoltaic solar cell panel. The automatic protection device comprises a solar cell panel and a bracket thereof, a solar cell panel protection curtain plate and a driving device thereof, and slide grooves formed in the two sides of the bracket of the solar cell panel, wherein a curtain plate supporting frame is arranged on the bracket of the solar cell panel; a hairbrush is arranged at the front end of the curtain plate; the bracket of the solar cell panel is arranged on a bracket capable of moving up and down, forwards and backwards; and the bracket of the solar cell panel can be used for adjusting the levelness of the bracket of the solar cell panel through an electric screw rod device and a slide way mechanism at the front part. A sensor provided by the invention can be used for detecting a signal of bad weather; and the curtain plate covers the solar cell panel so that the protection aim is realized. Particularly, an air speed signal is detected through an air speed sensor and a solar device is prone to be a leveled state by a control device through the electric screw rod device, so that damages of air pressure are reduced.

The invention relates to photovoltaic solar power systems and more specifically to solar photovoltaic systems which include concentrators of solar radiation. The invention includes application of single curvature and compound-curvature concentrators. A supporting member with an installed photovoltaic cell serves as an element in a heat sink unit and, at the same time, as a detail of a tracking mechanism. It allows to construct a cheap and reliable photovoltaic solar power system.

A holographically enhanced photovoltaic solar module comprises: a first substrate having an outer major surface and an inner major surface, substantially parallel to each other, the first substrate being optically transparent and including a transmission grating on the inner major surface of the optically transparent substrate; a second substrate having an outer major surface and an inner major surface, substantially parallel to each other, the second substrate including a reflection grating on the inner major surface of the second substrate; and at least one solar cell interposed between the transmission grating and the reflection grating and oriented perpendicular thereto.

A space-based solar power station, a power generating satellite module and/or a method for collecting solar radiation and transmitting power generated using electrical current produced therefrom is provided. Each solar power station includes a plurality of satellite modules. The plurality of satellite modules each include a plurality of modular power generation tiles including a photovoltaic solar radiation collector, a power transmitter and associated control electronics. Numerous embodiments relate to efficient power generation tiles. In one embodiment, an efficient power generation tile includes: at least one photovoltaic material; and at least one concentrator that redirects incident solar radiation towards a photovoltaic material such that the photovoltaic material experiences a greater solar flux relative to the case where the photovoltaic material experiences unaltered solar radiation.

A method and system for monitoring a photovoltaic module. The method includes initiating a monitoring process for a photovoltaic module at a predetermined time. The photovoltaic module is connected to at least another module in a photovoltaic string as a part of a photovoltaic array. Additionally, the method includes measuring one or more parameters of the photovoltaic module by a monitoring circuit. The one or more parameters include a module current flowing through the photovoltaic module, a module voltage across the photovoltaic module, and a module temperature of the photovoltaic module. Also, the method includes collecting one or more measurement results of the one or more parameters, transmitting the one or more collected results using one or more radio-frequency signals, and processing information associated with the one or more transmitted results.

The invention discloses silk screen print positioning equipment and a silk screen print positioning method for a photovoltaic solar silicon chip. The method comprises the following steps of: arranging an image pickup device at two opposite angle positions corresponding to a silicon chip and a silk screen respectively, and performing a predetermined step of the image pickup device; shooting opposite angle position images of the silicon chip and the silk screen by using the image pickup device; acquiring the shot position images, acquiring position characteristic parameters of the silicon chip and the silk screen, which comprise geometric centers and angles, correspondingly calculating a position deviation between the silicon chip and the silk screen, and introducing a compensation deviation according to a target position to acquire a comprehensive deviation; and adjusting the position and the angle of the silk screen relative to the silicon chip according to the calculated comprehensive deviation to finish a silk screen print positioning process of the photovoltaic solar silicon chip. According to the equipment and the method, the position deviation between the silk screen and the silicon chip can be measured by a simple and compact structure, and high accuracy of measurement and print positioning can be ensured; and simultaneously, the equipment and the method have the advantages that the equipment and the method are convenient to operate, high in interference resistance, stable and reliable.

Submitted is a modular stationary portable photovoltaic solar powered electrical generation, storage and supply device and light tower. The device consists of an elongated cube or rectangular prism shaped support structure with a flat base, flat sides and a flat decked top to form a protective crate shaped module when the various components, such as the solar panel arrays, telescoping mast, and light assembly or outriggers of the device are retracted to where the boundaries may be defined by the perimeters of the cube or prism. This modular design can allow for the modules to be stored, loaded, or shipped quickly, efficiently, and in greater quantities on flatbeds, in shipping containers, in warehouses, and other settings and modes where they can not only be packed end to end and side to side with no unused space, but can also be stacked up to three modules high for significantly higher storage density. The interconnectivity of multiple modules to create incrementally larger power generation, storage and distribution systems provides an easily adaptable solution to larger temporary power demands.

A photovoltaic solar energy heat pump is prepared as converting partial received solar radiation to be electric energy directly by PV/T evaporator and absorbing another partial solar radiation by refrigerant working media in heat energy mode, making refrigeration working media at outlet of PV/T evaporator to be overheat state after it is absorbed with heat energy, sending it into compressor to raise its pressure and temperature and sending it to condenser for releasing heat then sending it to throttle element for changing it to be two-phase mixture with low pressure and low temperature and finally entering PV/T evaporator again.