12 results about "Pyranometer" patented technology

A dual solar cell pyranometer and a method of manufacturing the dual solar cell pyranometer. The pyranometer includes at least two transparent members, a plurality of encapsulation members, at least two solar cells, a sealing member, and a frame structure. The solar cells have the same size and technology, and have matching electrical specifications. The encapsulation members are adapted to bond the solar cells to the transparent members. The solar cells face the sky, and the other solar cell faces the ground. The dual solar cell pyranometer accurately measures the pyranometer value and eliminates errors in the measured pyranometer value due to a small temperature difference between the solar cells.

With the growing adoption of bifacial photovoltaic modules, the albedo, or reflection coefficient of a surface, has become a highly important characteristic in the design of solar power plants using this type of photovoltaic module. This utility model consists of a mobile and portable albedo measuring device that makes it easier to carry out a field evaluation of the different ground covers and their respective solar radiation reflection coefficients. This is a fundamental step in assessing the generation potential calculated during the design phase of photovoltaic plants using bifacial modules. The device of the present utility model consists of a support that holds one end of an arm, a pair of pyranometers installed at the other end of the arm, and the pyranometers are fixed to the arm by a leveling element to guarantee the parallelism of the pyranometers with the analyzed surface.

The present invention discloses a system and method for atmospheric observations. The system (100) comprises a sky observer (102) comprising a sky imager (104) to capture and communicate a sky image for analyzing cloud characteristics, a robotic sun photometer (106) to track and communicate the sun and measure aerosol properties, a pyranometer (108) with a shadowband (110) and a sensor unit (120) to measure environmental conditions and collect and communicate sensor data surrounding the sky observer (102). The system (100) comprises a communication network (114) communicatively connected to the sky observer (102) to collect aggregated atmospheric data comprising the sky image, aerosol properties, different components of solar irradiance and the sensor data and transmit the aggregated atmospheric data to a server (114). The server (114) receives and analyzes the aggregated atmospheric data to estimate impact of atmospheric conditions on solar energy production in a solar plant.

Disclosed is a system (100) for quantifying energy losses in a solar power plant due to malfunctioning solar trackers. The system (100) includes a processor (104) that filters tracker-day data (118) of the one or more solar trackers (116) based on predefined quality and quantity criteria to identify malfunctioning trackers. It determines whether energy losses are controllable or uncontrollable based on tracker mode information. Using a solar position and irradiance model, the system (100) estimates expected irradiance for each malfunctioning tracker. Energy loss is calculated by comparing the expected irradiance to the actual irradiance measured by a pyranometer on a properly functioning tracker, adjusted for the tracker's capacity. The system (100) categorizes the losses as controllable or uncontrollable and analyses these losses to identify patterns of the malfunctioning trackers, guiding appropriate maintenance actions.

The application discloses a pyranometer temperature drift correction method based on non-invasive temperature measurement and belongs to the technical field of pyranometer measurement. In order to solve the problems of optimizing the accuracy of temperature measurement and the reliability of solar radiation data, a reference resistor is connected with a signal output end of a pyranometer by using a data collector to form a half-bridge circuit, so as to collect the internal temperature of the pyranometer; a thermocouple is connected with the data collector, and the thermocouple is installed at the lower part of a dome of the pyranometer, so as to collect the external temperature of the pyranometer; based on the collected internal temperature of the pyranometer and the collected external temperature of the pyranometer, a long-wave radiation table is used to perform temperature drift correction, so as to obtain a correction value of zero-point drift; based on the correction value of the zero-point drift, the fact that an observation field generally has an environmental temperature is considered, and a pyranometer temperature drift correction model based on non-invasive temperature measurement is constructed. The application avoids the interference on the normal function of the pyranometer, and meanwhile, the long-term observation reliability of data is enhanced.

The present disclosure relates to a pyranometer for measuring solar irradiance. In particular, the pyranometer comprises a dome (1), a thermopile-based sensor (2) comprising a receiving surface (22), a diffuser (3) configured to diffuse radiation passing through the dome (1) from outside the pyranometer towards the receiving surface (22) of the thermopile-based sensor (2), and at least one optical filter (4) arranged in the optical path of the radiation in front of the receiving surface (22) of the thermopile-based sensor (2) so as to modify the spectral composition of the radiation measured by the thermopile-based sensor (2).

The claimed invention relates to a pyranometer comprising: a dome, a thermopile-based sensor with a receiving surface, a diffuser configured to diffuse radiation from outside the pyranometer, passing through the dome, towards the receiving surface of the thermopile-based sensor, and at least one optical filter disposed in the optical path of the radiation opposite the receiving surface of the thermopile-based sensor to modify the spectral composition of the radiation measured by said sensor. According to the claimed invention, the distance of the optical path between the diffuser and the thermopile-based sensor is adjusted so that the radiation diffused by the diffuser onto the receiving surface of the thermopile-based sensor has a substantially conical shape.

Systems and methods are described for using AI processing to translate sky images and other available data into irradiance maps to produce signal outputs for the control of single axis solar trackers and forecasted energy output of solar photovoltaic projects. The processes involve the collection of sky imagery and pyranometer data (local and / or remote), and segmentation processing of the information. The system collects and applies regional historical and geospatial data (geography, topography, etc.) relevant to the locale and the time of year to generate a dynamic shadow map and to provide quality predictive local and real time irradiance maps. The irradiance maps are then translated into control signals (digital and then analog) suitable for transmission and use to move and orient the single axis solar trackers within the solar collector field. The irradiance maps are also translated into forecasted energy output of the solar photovoltaic project.

1. The name of the design product: the total solar radiation instrument (one-piece). 2. The use of the design product: for measuring the solar radiation value. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

A system for detecting methane includes a body and a shaft extending from the body. The system also includes a wind sensor coupled to the shaft. The wind sensor is configured to measure a wind direction and a wind intensity. The system also includes a pyranometer coupled to the body. The pyranometer is configured to measure ambient light. The system also includes a methane sensor positioned on or in the body. The methane sensor is configured to measure a methane concentration in ambient air.

In order to make it possible to calculate an amount of direct solar radiation and an amount of scattered solar radiation by means of a device having a simple configuration, this solar radiation amount calculation method involves calculating the amount of direct solar radiation and the amount of scattered solar radiation using at least one hemispherical glass dome (30) and two solar radiation meters (51), wherein, if the measured value from a first solar radiation meter is I1 and the measured value from a second solar radiation meter is I2, the amount of direct solar radiation D and the amount of scattered solar radiation S at a measurement time are calculated by solving simultaneous equations that express the measured value I1 and the measured value I2 using a direct solar radiation transmittance a and a scattered solar radiation transmittance b of sunlight directed toward the first solar radiation meter and a direct solar radiation transmittance c and a scattered solar radiation transmittance d of sunlight directed toward the second solar radiation meter.

A method for determining a weather condition, comprising: measuring horizontal irradiance; measuring first slope irradiance and second slope irradiance, a first slope and a second slope being arranged to face the sun and being symmetrical about the meridian plane; determining an azimuth irradiation deviation rate according to the horizontal irradiance, the first slope irradiance, and the second slope irradiance; and determining a weather condition according to the horizontal irradiance, the first slope irradiance, the second slope irradiance, and the azimuth irradiation deviation rate. Also provided is a device for determining a weather condition.