424 results about "Solar power system" patented technology

The invention discloses a fault diagnosis and remote monitoring system and method for a solar power supply system, and relates to the technical field of fault diagnosis of a solar system, and the system comprises a heterogeneous multi-mode sensing module which collects the multi-dimensional information of an assembly through a plurality of sensors; the memristor storage and calculation integrated unit is used for realizing data filtering and feature extraction; the multi-scale causal diagnosis engine is used for diagnosing faults by fusing deep learning and causal diagrams; a self-adaptive topology communication network ensures data transmission; a digital twinborn monitoring platform and visual operation and maintenance are adopted, and in addition, an intelligent evolution decision and self-reconfiguration sensor network module is further arranged, so that the intelligence and reliability of the system are improved. Through cooperation of multiple modules, accurate fault diagnosis and positioning are realized, the diagnosis time is shortened, stable data transmission is ensured, self-repairing and autonomous learning capabilities are provided, the operation and maintenance cost can be reduced, the power generation efficiency can be improved, and the reliability and economic benefits of a solar power supply system can be enhanced.

To provide a photovoltaic power generation system, a power conversion device and a method of controlling the power conversion device that can improve the tracking capability of the maximum electric power point.SOLUTION: A photovoltaic power generation system comprises a solar cell device which has a solar cell cluster 101 and a power conversion device 20 which performs MPPT control to vary the operation voltage value of the solar cell device at predetermined time intervals so as to increase the output electric power of the solar cell device. The power conversion device 20 varies the predetermined time intervals based upon the output current value of the solar cell device when performing the MPPT control.SELECTED DRAWING: Figure 1

According to the multifunctional monitoring method and system of the solar power generation system provided by the invention, the target multifunctional monitoring data needing to be processed and the important knowledge field information of the target needing to be processed are fused; the hidden knowledge field information of the target needing to be processed and the important knowledge field information of the target needing to be processed are synthesized, more knowledge field information of the target needing to be processed is extracted, and multifunctional monitoring data can be accurately determined. Therefore, the monitoring accuracy and reliability of the solar power generation system can be improved. Besides, through the target multifunctional monitoring data needing to be processed, the target needing to be processed is monitored, a solar power generation monitoring result is obtained, the monitoring accuracy is guaranteed, normal work of equipment can be guaranteed, and therefore the stability of the power generation amount is guaranteed.

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.

The invention belongs to the technical field of solar photo-thermal power generation, and discloses a tower type solar power generation system based on lunar soil particle moving bed heat exchange, which utilizes local materials of lunar soil to prepare solid heat storage particles as a heat transfer and heat storage medium, greatly reduces the mass and volume of the system and the cost and risk of transporting materials from the earth, and improves the energy efficiency. The efficient particle moving bed heat exchanger combining the particle receiver and the heat collector utilizes direct efficient contact heat exchange between solid particles and between the particles and a heat exchange working medium, has the characteristics of high heat exchange efficiency, small heat loss and compact structure, and is particularly suitable for space vacuum and microgravity environments; it is ensured that heat is reliably and stably transmitted to the Brayton cycle power generation system from concentrated solar energy, and power is generated through the Brayton cycle power generation system.

The invention discloses a solar power generation power prediction method based on improved elastic network regression, and belongs to the field of solar power generation system output prediction. The problem that an existing solar power generation potential prediction method is poor in accuracy is solved. The method comprises the following steps: collecting meteorological influence factor data and network access power real-time power data of a place where a target solar power generation system is located, establishing an output-meteorological characteristic data set, determining a tradeoff coefficient r and a regularization strength parameter lambda by using a grid search algorithm in combination with k-fold cross validation, and constructing an elastic network regression model; and training the regression model, optimizing a trade-off coefficient r and a regularization strength parameter lambda of the elastic network regression model by using a TPE optimization algorithm to obtain a solar power generation prediction model, testing the power generation prediction model by using a test set, and finally performing power generation power prediction by using the tested power generation prediction model. The method is suitable for solar power generation power prediction.

Disclosed herein is a solar panel system comprising at least one solar panel and a flexible support structure supporting the at least one solar panel wherein at least part of the flexible support structure is configured to be fillable with a fluid. Also disclosed is a solar power plant comprising said solar panel system and a method of using said solar power system.

A solar power system can include a rail and a solar module disposed on the rail. A clamp assembly can couple the solar module to the rail. The clamp assembly can have a clamped configuration in which the solar module is secured to the rail and an unclamped configuration. The clamp assembly can comprise an upper clamp member, a lower clamp member coupled to the rail, and a stabilization member mechanically engaging the upper clamp member and the lower clamp member. The stabilization member can prevent rotation of the lower clamp member relative to the rail when the clamp assembly is in the clamped and unclamped configurations. In the unclamped configuration, the stabilization member can be biased such that the upper clamp member is disposed at a sufficient clearance above the rail to permit the insertion of the solar module between the upper clamp member and the rail.

To provide a floating solar power generation device and a floating solar power generation system which can be easily moved, assembled, and disassembled. [Solution] The floating solar power generation device 10 comprises a floating part 11 capable of floating in the air, a solar cell module 12 attached to the floating part 11, and a rope-like adjustment member 42 connected to the floating part 11 and adjusting the distance between the floating part 11 and the ground.

The invention discloses a thermoelectric solar power generation power intelligent prediction method, equipment and a medium, belongs to the technical field of thermoelectric solar power generation prediction, and aims to solve the problems that the existing pressure-bearing high-conversion thermoelectric solar power generation power prediction is easy to be subjected to complex influence of various unstable data, so that the prediction of the power generation power is not accurate enough, and the prediction efficiency is low. And the working performance of the power generation system is influenced. The method comprises the following steps: periodically extracting spatio-temporal features of GFS meteorological data to obtain multi-dimensional meteorological features; carrying out characterization analysis on the equipment operation state of the thermoelectric solar power generation system to obtain power generation state characteristics; performing space-time alignment processing on the multi-dimensional meteorological features and the power generation state features, and determining a meteorological-equipment feature mapping relation; dynamically correcting the historical power generation power data to obtain a power correction parameter; and performing weight coefficient prediction processing of related continuous time periods on the current generation power data in the thermoelectric solar power generation system to generate future generation power data.

An abnormality detection apparatus of the present disclosure is for a direct current power transmission unit 30, which transmits direct current power that is outputted from a solar panel 1, and is provided with: sensing circuits 411, 412; a measurement device 401; and an abnormality detection processing unit 402. The sensing circuits are each a two-terminal sensing circuit that includes at least one of a resistor, a capacitor, and an inductor, and that indicates prescribed impedance, and each have one terminal electrically connected to at least one conductor that is for direct current transmission and that is provided in the direct current power transmission unit 30. The measurement device measures the direct current transmission part impedance indicated by the conductor. The abnormality detection processing unit compares the direct current transmission part impedance measured by the measurement device with a determination reference value to detect an abnormality in the direct current power transmission unit.

The utility model discloses a municipal roof photovoltaic installation device, and relates to the technical field of roof structures. The municipal roof photovoltaic installation device comprises a roof photovoltaic installation support and a photovoltaic panel adjusting device, the photovoltaic panel adjusting device is arranged in the roof photovoltaic installation support, the photovoltaic panel adjusting device comprises a driving motor, and the driving motor is fixedly connected to the surface of the roof photovoltaic installation support; the output end of the driving motor is fixedly connected with a two-way threaded rod, the surface of the two-way threaded rod is sleeved with two movable blocks in a threaded mode, the upper ends of the two movable blocks are both rotationally connected with first connecting rods, the upper ends of the two first connecting rods are rotationally connected with a movable plate, and the upper end of the roof photovoltaic mounting support is rotationally connected with a photovoltaic panel support. By adjusting the angle of the photovoltaic panel support, the angle of the photovoltaic panel support can be conveniently adjusted to a proper angle according to the local roof angle and the local season, the photovoltaic power generation efficiency is improved, and therefore the power generation amount of a solar power generation system is increased.

This device prevents theft of power transmission cables (electric wires) in ground-mounted solar power facilities. [Solution] A support pole 1 is erected around a utility pole 5, and recycled plastic panels 2 made to fit the size of each piece of equipment are screwed in between the poles with square-headed screws 3 to accommodate replacement and maintenance of the equipment. Also, in order to visually check the power meter 6, a check window 4 is opened in the installed panel 2 so that the power transmission status can be confirmed.

To display a more useful screen for grasping a state of a photovoltaic power generation system.SOLUTION: A display processing device is used for a photovoltaic power generation system with a power generation unit and comprises: an acquisition unit which acquires a determination result of a state of the photovoltaic power generation system; and a display processing unit which performs display processing of displaying the determination result acquired by the acquisition unit on a map comprising the power generation unit.SELECTED DRAWING: Figure 7

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.

The invention discloses a solar energy charging control method for a campus, and the method comprises the following steps: S1, collecting the historical electricity consumption information of the campus, including the electricity consumption, the electricity consumption peak value and the low ebb value of different time periods, S2, carrying out the deep analysis of the historical electricity consumption data through a data analysis tool and algorithm, and S3, constructing an electricity consumption prediction model through the data analysis result of S2, and carrying out the prediction of the electricity consumption. S4, customizing an energy charging strategy and an electricity utilization plan according to the electricity utilization model constructed in S3, and S5, interacting the energy charging strategy and the electricity utilization plan with the smart power grid, and adjusting the output power and the electricity utilization demand of the campus solar power generation system according to the load condition and the electricity price change of the power grid.

Solar power generation system and method for DC power transmission and centralized power inversion. The solar power generation system includes a photovoltaic (PV) bus system and a fixed bus system. The PV system utilizes a control mode switching control method, which includes determining to enable local maximum power point tracking (MPPT) control; in response to determining that the local MPPT control is enabled, starting an MPPT mode timer; performing local MPPT; determining whether the MPPT mode timer is greater than a predetermined period; and, in response to determining that the MPPT mode timer is greater than a predetermined period, switching the MPPT control to the next MPPT controller. Distributed MPPT control methods include sequential MPPT control, adaptive ΔV MPPT control and / or power limit control. The fixed bus system includes a PV string MPPT controller and a fixed DC input central inverter or multiple fixed DC modular inverters.

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.

This product is a large-capacity inverter with a built-in semiconductor module that converts DC voltage to AC voltage to control electric motors, etc., and is used, for example, to control large-capacity systems such as solar power generation systems. When using this product, a hose or the like is connected to the cooling medium inlet and outlet to cool the product.

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.

A real-time fault monitoring system has a bi-spectrum infrared and visible- light camera and a wireless transmitter that transmits a video signal from the camera to a remote server. The camera is mounted in a location and position to monitor temperatures of components in susceptible to catastrophic failure, for example, in the nacelle of a wind turbine or the inverter housing of a solar power system. The server monitors the infrared video signal for temperature anomalies and causes an alert to be sent to an end-user if a heat signature measured using the infrared image exceeds a predetermined level or falls outside a predetermined range. The server also provides access to live video stream and recorded video of the infrared and visible-light imaging for real-time human observation and the ability to analyze where and when a fault initially occurred.

A solar power system which includes an electric engine power generator assembly to produce and store electrical energy as needed, when solar energy is not available or the level of solar energy is insufficient, to maintain a full or substantially full stored power charge level.

The present invention is a system and method for automating operation of a power system for a trailer-based solar power food refrigeration and freezing system, the system providing a solar powered battery that provides primary power to the systems in the trailer, the solar power system also being able to activate a propane standby generator when additional power is needed to charge the battery to a threshold power level, providing a startup control procedure for the refrigeration and freezer units that prevents an overload of the power system, and being able to determine the current battery voltage at any time so that the propane standby generator can be activated when needed.

A solar power generation system configured by connecting a plurality of power generation systems including a solar panel and a DCDC circuit unit in parallel includes a first control unit that performs maximum power point tracking control for a host power generation system that is one of the power generation systems, and drives the DCDC circuit unit at a duty cycle corresponding to a maximum power point of the solar panel, and a second control unit that, for each of slave power generation systems other than the host power generation system among the power generation systems, derives a variation ratio of an input voltage or an output voltage of the DCDC circuit unit before and after the maximum power point tracking control is performed by the first control unit, and corrects the duty cycle of the DCDC circuit unit based on the variation ratio.

A control device performs: searching for a maximal efficiency voltage which is an output voltage of the first converter at which the output power of the first converter becomes maximal; storing the maximal efficiency voltage obtained by the searching; performing a voltage adjustment process of changing the output voltage of the first converter in a direction in which the output power of the first converter is increased by using the maximal efficiency voltage as an initial value; changing the output voltage of the first converter to the maximal efficiency voltage at that time when the correspondence relationship between the output voltage of the first converter and the output power corresponding to the output voltage of the solar panel is changed during the voltage adjustment process; and performing the voltage adjustment process again with the output voltage of the first converter after the change as a new initial value.

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

The invention discloses a fishing light complementation auxiliary device and a fishing light complementation system.The fishing light complementation auxiliary device comprises a guide rail assembly and a hull assembly, and the guide rail assembly comprises a hanging rod, a second support, a second rotating wheel, a steel rail and a rotating wheel support; the guide rail assembly is hung below a square matrix bracket of the floating photovoltaic square matrix assembly through the hanging rod; the ship body assembly comprises a cabin mechanism, a control mechanism, an impeller mechanism and a rail clamping mechanism; the rail clamping mechanism is arranged on the upper portion of the cabin mechanism and used for connecting steel rails of the guide rail assembly. The control mechanism comprises a power source; the impeller mechanism is arranged at the tail of the cabin mechanism and connected with the power source, when hollow blades are driven by the power source to rotate in air, the air enters from an inlet in the side face of the front side, and water is sprayed out from an outlet in the end of the outermost side, does centrifugal motion and is sprayed to square matrix assemblies on the surrounding cleaning square matrix assemblies, and meanwhile the ship body assembly is driven to move along steel rails. According to the auxiliary device, the photovoltaic cleaning effect and the oxygenation effect are improved at the same time.

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.