3 results about "High irradiance" patented technology

This application provides a method, electronic device, and storage medium for online power monitoring of photovoltaic modules. The method includes: constructing verification conditions; determining a valid test time based on pre-established verification conditions (string operating status verification, irradiance integer value verification, and irradiance stability verification); real-time power correction of the module based on the measured irradiance and cell temperature at the valid test time; determining the online power test value based on the corrected power value under the same integer irradiance reference value; when the integer irradiance reference value reaches a preset high irradiance threshold, correcting the online power test value to standard test conditions to obtain a comparable online power test value; determining the current control reference for the current test cycle based on its corresponding factory power correction value; and updating the dynamic iterative control reference based on the current control reference and historical control references to perform power anomaly monitoring. This application achieves accurate online testing and anomaly identification of photovoltaic module power.

The present application relates to the technical field of clean energy, and discloses a training method and device of a correction model of NWP irradiance, equipment and a medium, the present application obtains historical NWP data, historical measured meteorological data and historical intrinsic electrical property data of the photovoltaic panel contained in the target photovoltaic station of the target photovoltaic station; the difference irradiance data is calculated based on the historical NWP irradiance data and the historical measured irradiance data; the training data set is constructed based on the historical intrinsic electrical property data, the historical NWP data and the difference irradiance data; the training data set is input into the pre-constructed preset correction model for model training, the historical intrinsic electrical property data and the historical NWP data are used as characteristic variables, the difference irradiance data is used as a label, the parameters of the preset correction model are continuously adjusted, the preset correction model learns the coupling relationship between the historical intrinsic electrical property data, the historical NWP data and the difference irradiance data, and the model converges until the correction accuracy of the NWP irradiance is improved.

The application discloses a calibration method and device of a wide-band irradiance meter with high irradiance. The method comprises the following steps: calibrating a spectral radiometric device to obtain a spectral correction coefficient; measuring spectral radiant flux of a fiber type wide-band light source and correcting the spectral radiant flux by using the spectral correction coefficient to obtain corrected spectral radiant flux; calculating radiant flux of a predetermined wave band according to the corrected spectral radiant flux; calculating a radiant illuminance value of a fiber output port as a standard value according to the radiant flux of the predetermined wave band; measuring a reading of a measured irradiance meter at the same fiber output port, comparing the reading with the standard value, and obtaining a calibration result. The application solves the problem that the existing light track method cannot be adapted to the fiber type irradiance meter by combining an integrating sphere with a standard fiber and introducing a fiber output light source into the integrating sphere to homogenize light. The radiant illuminance is accurately calculated by using a standard lamp calibration and a fiber end surface area, near distance measurement error is avoided, and accurate calibration of high irradiance is realized.