155 results about "Solar power system" patented technology

Implementations of the disclosed subject matter provides a system having an artificial light source disposed at a distance from earth or other celestial body, where the artificial light source is configured to project one or more beams of light onto the earth or other celestial body. The system may include a photovoltaic array disposed in an area on the earth or other celestial body that is 200 m-20 km or more in any one dimension that is configured to receive the projected one or more beams of light and is configured to convert the received one or more beams of light into electricity.

A toolless fastening assembly for a solar power system including a first strap portion having a first connector, a second strap portion having a second connector, and a boot buckle extending a buckle distance between a first buckle end and a second buckle end. The first buckle end is connectable to the first connector and the second buckle end is connectable to the second connector. The boot buckle includes a latch lever that is rotatable between a first lever position and a second lever position. Rotation of the latch lever from the first lever position to the second lever position shortens the buckle distance.

Provided are a method and apparatus for recording data of a solar power generation system. The method includes storing, in a first manner, first data about a state of at least one apparatus included in the solar power generation system before an event occurs in the at least one apparatus, in a buffer included in a power conversion system (PCS), storing, in a second manner, second data about a state of the at least one apparatus after the event has occurred, in the buffer, based on detecting the event, storing the first data and the second data in a persistent storage device included in the PCS and distinguished from the buffer, and transmitting data stored in the persistent storage device to an external device of the PCS.

To provide a floating solar power generation system that can suppress the adverse effects of moisture and salt. [Solution] A floating solar power generation device 1 is provided, comprising a solar cell module 2 that receives light and generates electricity, a battery 3 that stores the electricity generated by the solar cell module 2, and a transparent housing 4 that has an hermetically sealed internal space 41 that houses the solar cell module 2 and the battery 3, and transmits light of wavelengths that the solar cell module 2 can generate electricity from, wherein the internal space 41 of the transparent housing 4 has a first region 41a where the solar cell module 2 is arranged, and a second region 41b which is arranged vertically below the first region 41a and where the battery 3 is arranged.

Discharge the charge that requires discharge in the inverter device. [Solution] The inverter device comprises an inverter circuit and an inverter control unit. The inverter circuit comprises a DC terminal pair consisting of a first DC terminal and a second DC terminal, an AC terminal pair consisting of a plurality of AC terminals, a first capacitor and a second capacitor connected in series between the first DC terminal and the second DC terminal, and a plurality of switch elements connected between the DC terminal pair and the AC terminal pair in a predetermined connection pattern, each being made of semiconductors and having a parasitic diode. When the inverter control unit detects an interruption in the DC power input from the DC terminal pair, it controls the plurality of switch elements to turn on and off, clamping the voltage of the first capacitor with the reverse voltage of the parasitic diode of the switched element that is turned off, and clamping the voltage of the second capacitor with the reverse voltage of the parasitic diode of the switched element that is turned off.

This application relates to the field of optimized scheduling technology for cascade hydropower systems in river basins, and particularly to a multi-stage collaborative scheduling method and device for integrated hydropower, wind power, and solar power systems. The method includes: acquiring day-ahead and intraday forecast data of photovoltaic and wind turbine output; constructing a day-ahead collaborative optimization model with dual objectives of minimizing power generation water consumption rate and maximizing expected absorbable electricity; solving the day-ahead collaborative optimization model for multi-objective optimization to obtain the day-ahead unit output plan of the hydropower station; and then constructing an intraday rolling correction model with the single objective of minimizing wind and solar curtailment. The day-ahead unit output plan is used as the operating benchmark for the intraday stage. The day-ahead unit output plan is adjusted by solving the intraday rolling correction model to obtain the intraday unit output plan. Thus, through a multi-stage collaborative mechanism of day-ahead benchmark setting and intraday deviation correction, the problem that related technologies are limited to a single time scale and suffer from uneven solution set distribution and poor convergence when solving multi-objective problems, making it difficult to obtain accurate integrated hydropower, wind power, and solar power operation schemes, is solved.

To provide an abnormality detection device for a photovoltaic power generation system that omits a measuring instrument monitoring a current value of a solar cell string itself.SOLUTION: An abnormality detection device 1 for a photovoltaic power generation system comprises: a plurality of solar cell strings 2; a connection box 3 to which the plurality of solar cell strings 2 are connected; a current measurement part 4 which measures a current output from the connection box 3; and an arithmetic part 11 which detects that a solar cell string 2 having decreased in power generation amount is included in the connection box 3, based upon a measurement result of the current measurement part 4.SELECTED DRAWING: Figure 1

A method of forming a concentrated solar power system for generating electricity. The method has three steps. The first step is coupling a plurality of tower segments together onsite at a solar energy concentration field to form a solar tower in a lowered orientation. At least one solar receiver is coupled to the solar tower to form a solar tower assembly. The second step is raising the solar tower assembly to a solar energy collection orientation by pivoting the solar tower assembly about a pivot axis located at a bottom portion of the solar tower. The third step is securing the solar tower assembly in the solar energy collection orientation.

According to one embodiment, a solar cell including a transparent first electrode, an n-type layer, a light absorption layer that contains an inorganic material, and a second electrode is provided. The n-type layer is present between the first electrode and the light absorption layer. The light absorption layer is present between the n-type layer and the second electrode. The first electrode has a gap penetrating the first electrode. The n-type layer, the light absorption layer, and the second electrode are each partially included in the gap, and a part of the n-type layer, a part of the light absorption layer, and a part of the second electrode are arranged in this order in the gap.

A concentrated solar power system having a solar energy collection subsystem. The solar energy subsystem has tower extending along a tower axis and a first solar energy receiver movably mounted to the tower. The first solar energy receiver is alterable between a first state and a second state while remaining mounted to the tower, and the first solar energy receiver contains a first heat exchange fluid.

Provided is a switching circuit capable of suppressing a decrease in output power even if the power generated by a plurality of DC-power supply circuits changes, and a DC-power output apparatus, a wireless-power transfer system and a solar-power generation system having the switching circuit. A connection circuit section of the switching circuit, which is disposed between a plurality of plus-input sections and a plurality of minus-input sections, and a plus-output section and a minus-output section, has a plurality of switches capable of respectively controlling a turn on / off so as to switch connection states between the plurality of the DC-power supply circuits, and the plus-output section and the minus-output section.

This technology provides the ability to calculate the location where the solar power generation output of a solar power system is maximized over the entire parking period. [Solution] The vehicle-mounted solar power generation system comprises a vehicle equipped with a solar power generation device, a sensor that detects the surrounding environment of multiple candidate locations where the vehicle can be parked, an acquisition unit that acquires parking time information, parking location information, environmental information including surrounding information, parking timing information, solar radiation information, and performance information, and a calculation unit that uses the information acquired by the acquisition unit to calculate the amount of power generated at each point in time during the parking period for each of the multiple candidate locations, calculates the total amount of power generated by the solar power generation device for each of the multiple candidate locations, and calculates the candidate location with the maximum total power generated among the multiple candidate locations as the parking location for the vehicle.

Operation unit for photovoltaic power generation, photovoltaic power generation stop system using the same, photovoltaic power generation system, and photovoltaic power generation method, capable of suppressing electric shock and fire caused by a photovoltaic power generation panel due to an earthquake and flood damage, and taking into consideration that a correct operation for stopping power generation is performed by preventing an operator's erroneous operation SOLUTION: An operation unit for a hybrid switch that is connected between terminals of a module or a string of a photovoltaic panel to obtain an output and short-circuits the terminals to stop the output includes a first manual switch corresponding to the hybrid switch, a seismic sensor, a water level sensor, a control unit that short-circuits the terminals in the hybrid switch under a predetermined condition, a second manual switch that restarts photovoltaic power generation from DC interruption by the control unit, and a display element that displays that power is being generated.SELECTED DRAWING: Figure 2A

To construct a solar thermal power generation system by using a thermoelectric conversion element requiring no temperature difference.SOLUTION: There is provided a power generation system including a thermal collector tube, in which the thermal collector tube includes a thermoelectric conversion element, the thermoelectric conversion element has a flat plate shape, and the thermoelectric conversion element is housed inside the thermal collector tube.SELECTED DRAWING: Figure 1

The invention relates to the technical field of agricultural facilities, and particularly discloses an intelligent greenhouse system integrating photovoltaic and direct air carbon capture functions, which comprises a greenhouse main body and a solar power generation system, the solar power generation system is provided with a plurality of solar cell panels; the multiple solar cell panels are fixedly laid on the top of the greenhouse body, and at least parts of the back faces of the solar cell panels are connected with the interior of the greenhouse body. CO2 released by respiration of crops in the greenhouse can be adsorbed by the PEI / MCM-41 coating at night or under the condition without illumination, and the released adsorption heat can preserve heat of the greenhouse; in the daytime, heat energy generated during power generation of the solar cell panel can be used for heating the saturated coating, high-concentration CO2 is desorbed and released into the greenhouse for plant photosynthesis, meanwhile, the average temperature of the photovoltaic cell can be reduced, and the power generation efficiency and durability of the photovoltaic cell can be improved.

This application provides a method for recognizing AC faults in an inverter and a photovoltaic power system, in which a controller records waveforms for a certain parameter of a photovoltaic power system, and uploads the recorded waveforms to an external device, and the external device with high data storage and processing capabilities stores and processes the waveforms, thereby realizing accurate recognition of the faults on the AC side of the inverter. The operator can view the detailed waveforms from the external device, which greatly improves the monitoring accuracy of the system. The external device can make full use of the advantages of storage capacity, big data, and computing power to analyze the waveforms and generate control commands to adjust the operation of the inverter, making the control more accurate, and cooperating with the local in real time and quickly to control and achieve better system performance.

To provide a power supply system, a watt-hour meter, and an information processing device that can easily introduce a distributed power source such as a solar power generation system into an apartment building while maintaining an existing power receiving contract. [Solution] The power supply system is a power supply system for a condominium that includes multiple private and common areas that have individual low-voltage power receiving contracts with an electric power company, and is equipped with: a first electricity meter installed at the power draw point for the entire condominium and measures the amount of electricity purchased from the electric power company; an addition unit that adds up the amount of electricity measured by second electricity meters installed in each of the multiple private and common areas and managed by the electric power company; a measurement value calculation unit that calculates the amount of self-consumption electricity from distributed power sources in the condominium by subtracting the amount of purchased electricity from the added-up amount of electricity; and a settlement unit that settles the compensation for the amount of self-consumption electricity to the power generation company of the distributed power source based on the calculated amount of self-consumption electricity.

The objective is to provide a method for installing a solar power generation system and a solar power generation system that can improve the conversion rate of solar energy to electricity per unit area and can easily compensate for the decrease in electricity due to aging or other factors. [Solution] A method for installing a solar power generation system and a solar power generation system 1, comprising a first solar power generation system 10 comprising a first solar cell string 12 having a plurality of first solar cell modules 11 and a first power converter 13, and a second solar power generation system 20 comprising a second solar cell string 22 having a plurality of second solar cell modules 21 and a second power converter 23, wherein each second solar cell module 21 is installed on the back side of the first solar cell module 11 so as to generate electricity using only indirect sunlight.

A roof-mounted solar power system for generating electrical power that includes a plurality of solar modules adapted for generating electrical power from sunlight, and with each of the plurality of solar modules having substantially the same size, aspect ratio and surface coloring. The plurality of solar modules are mounted on the deck of a roof to form a bank of solar modules having at least one irregular edge. The solar power system further includes one or more non-power generating edge treatments having substantially the same size, aspect ratio and surface coloring as the solar modules and that are adapted for installation along the irregular edge. Each edge treatment is adapted for a cutting away of at least one corner thereof to smooth the irregular edge of the bank of solar modules to a regular edge.

A high efficiency solar power system combining photovoltaic sources of power (1) can be converted by a base phase DC-DC photovoltaic converter (6) and an altered phase DC-DC photovoltaic converter (8) that have outputs combined through low energy storage combiner circuitry (9). The converters can be synchronously controlled through a synchronous phase control (11) that synchronously operates switches to provide a conversion combined photovoltaic DC output (10). Converters can be provided for individual source conversion or phased operational modes, the latter presenting a combined low photovoltaic energy storage DC-DC photovoltaic converter (15) at string or individual panel levels.

An exemplary embodiment of the present disclosure provides a current source converter, comprising a transformer, a first circuit, and a second circuit. The transformer can comprise a first winding, a second winding, and a third winding. The first circuit can be electrically coupled to the first and second windings. The first circuit can comprise a battery port and a photovoltaic (PV) port. The battery port can be configured to interface with one or more batteries. The PV port can be configured to interface with one or more PV modules. The second circuit can be electrically coupled to the third winding. The second circuit can comprise an alternating current (AC) port configured to interface with an AC load.

This technology provides a way to sufficiently reduce the voltage of the circuit in a solar power generation system at a low cost. [Solution] The solar power generation system comprises an inverter, a circuit breaker, and a string, all connected in series with each other. The circuit breaker has a first relay contact. The string has a plurality of module units connected in series with each other. Each of the plurality of module units comprises a solar cell module and a second relay contact connected in series with the solar cell module. The solar power generation system further comprises a control unit that keeps both the first and second relay contacts closed in the operating state, and keeps both the first and second relay contacts open in the emergency state, and opens the first relay contact and then opens the second relay contact when switching from the operating state to the emergency state.

A solar cell module and a solar energy power system with ice-dissolving function are disclosed. The solar cell module includes a substrate, a flexible lithium ceramic battery, a first bonding layer, a conductive heating film layer, a second bonding layer, several solar cells, a waterproof film layer, a third bonding layer, a highly transparent light-concentrating ETFE layer and a ring bonding wall. The invention stores part of the power generated by the solar cells in the flexible lithium ceramic battery. When the solar cell module encounters temperatures below freezing point, the power in the flexible lithium ceramic battery can be controlled to be released to the conductive heating film layer to generate heat and dissolve the ices on the surface of the solar cell module.

The present invention relates to a photovoltaic power generation system and a photovoltaic power generation method capable of detecting a power generation abnormality and diagnosing a cause thereof, wherein an artificial intelligence model is constructed by collecting MPPT results of MPPT units and performing artificial intelligence learning using MPPT results of the MPPT units excluding an MPPT result of a specific MPPT unit, and by comparing a pattern of an MPPT result estimated by the artificial intelligence model and a pattern of an actual MPPT result, an MPPT unit in which an abnormality in MPPT performance has occurred is detected early and a cause of the abnormality is diagnosed.

The system detects abnormalities in the AC power transmission section of the solar power generation system. [Solution] The abnormality detection device of this disclosure is for an AC power transmission unit that transmits AC power output from a solar panel 1, and comprises sensing circuits 5001 to 5003, a measuring device 3001, and an abnormality detection processing unit 3002. The sensing circuit is a two-terminal sensing circuit that includes at least one of a resistor, a capacitor, and an inductor and exhibits a predetermined impedance, and one terminal is electrically connected to at least one of the AC transmission conductors 2301 to 2303 provided in the AC power transmission unit. The measuring device measures the AC transmission unit impedance exhibited by the conductor. The abnormality detection processing unit detects an abnormality in the AC power transmission unit by comparing the AC transmission unit impedance measured by the measuring device with a judgment criterion value.

This application relates to the solar cell technology field and provides an electrode structure for a back-contact solar cell, a cell and its assembly, and a solar power generation system, in which some first sub-gate electrodes of the electrode structure include a first collecting gate line electrode and a first connecting gate line electrode, the first collecting gate line electrode is connected to a first main gate electrode and is disconnected by a second main gate electrode, and the first connecting gate line electrode passes through a second main gate electrode between two adjacent first main gate electrodes to connect two adjacent first main gate electrodes. In this way, the first connecting gate line electrode passes through the second main gate electrode to connect adjacent first main gate electrodes, thereby connecting all the first main gate electrodes in parallel into a single whole and making their electrical performance more uniform. After welding, the back-contact solar cell becomes a single whole with uniform electrical performance. Furthermore, when the assembly is subjected to an EL test, the EL streak and block-like blackening phenomena in the back-contact solar cell are improved, effectively avoiding mismatch in the back-contact cell assembly and improving the power of the assembly.

The utility model belongs to the field of light storage and charging system, propose a kind of light storage and charging system for green building, including solar power generation system, energy storage system and charging system, the solar power generation system includes photovoltaic module, inverter, photovoltaic grid-connected cabinet and switch board, the energy storage system includes battery, energy storage converter, battery management system and energy management system, the shed frame top of charging system is provided with automatic cleaning device, the automatic cleaning device shed roof box, mobile frame, side brush, rack, gear and for driving gear and rack's speed reducer motor. The utility model discloses light storage and charging system can improve the electric energy overall utilization rate of green building, relieve power grid pressure, and utilize automatic cleaning device can be to the photovoltaic module installed on shed frame automatic cleaning, avoid soot cleaning not in time and influence photovoltaic module's performance, design is reasonable, is suitable for large-scale popularization.

A self-propelled pool cleaner operable and submergible in a swimming pool or spa includes an onboard power-generating device, such as but not limited to one or more solar panels. The one or more solar panels may be on a submergible surface of the self-propelled pool cleaner, such as but not limited to a surface at a top end of the self-propelled pool cleaner and / or one or more sidewalls. The one or more solar panels may allow for charging of the self-propelled pool cleaner at least while the pool cleaner is submerged underwater.

The invention relates to a multi-area coupled vehicle body integrated solar power generation system and method, the system comprises a vehicle body top cover, an engine hood and vehicle door glass, the vehicle body top cover is provided with a transparent skylight and an illumination sensor, and the engine hood is provided with a heat insulation layer, a heat dissipation device and a temperature sensor; and the solar module comprises a transparent perovskite laminated cell which is coupled on the transparent skylight in a partitioned manner, a CIGS thin film cell on the engine hood and a dye-sensitized cell on the automobile door glass. According to the transparent perovskite laminated cell, the flexible substrate can be adopted, the bendable and foldable design can be achieved, the cell is suitable for an electric vehicle roof and the like, the wind resistance coefficient is reduced, a semitransparent or colored cell can be prepared by adjusting the thickness and the band gap of the perovskite layer, and the aesthetic requirement of the vehicle roof is met; the light absorption coefficient is high, high power generation efficiency can still be kept in cloudy days or under the indoor weak light condition, the temperature coefficient is close to zero, and the efficiency loss in the high-temperature environment is extremely small.

An energy storage system according to an embodiment of the present invention may include a battery system including one or more batteries, a power conditioning system (PCS) that controls power of the battery system, and a power management controller (PMS) that collects status information regarding one or more of a grid, a PV system, an EV charging system, the battery system, and the PCS, and controls power of the PV system, the EV charging system, and the battery system based on the collected status information.