Method and device for calculating power loss of photovoltaic power station and storage medium

Abstract

The invention discloses a method and device for calculating the power loss of a photovoltaic power station and a storage medium. The method comprises the steps of obtaining operation data of all inverters of the station, the all inverters of the station comprise n sample plate inverters and m non-sample plate inverters, the operation data comprise the operation date of each inverter, the daily equivalent utilization hour number corresponding to each operation date and the inverter state, n is greater than or equal to 1, and m is greater than or equal to 1; judging whether the sample plate inverter needs to be updated or not according to the operation data of the all inverters of the station; if not, calculating the power loss of the photovoltaic power station; if so, determining the number a of the sample plate inverters needing to be updated, replacing the a sample plate inverters needing to be updated with a non-sample plate inverters, calculating the power loss of the photovoltaic power station, wherein a is greater than or equal to 1 and less than or equal to n. According to the scheme, the power generation capacity of the photovoltaic power station can be analyzed, the sample plate inverter with the abnormal power generation capacity is automatically removed, it is guaranteed that the sample plate inverter is representative all the time, and then the accuracy of power loss calculation is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of photovoltaic technology, and in particular to a method, device and storage medium for calculating power loss in a photovoltaic power station. Background technique [0002] Photovoltaic power station refers to a photovoltaic power generation system that uses solar energy and uses special materials such as crystalline silicon panels, inverters and other electronic components to connect to the grid and transmit power to the grid. In the actual operation process, due to the influence of dispatching power cuts, equipment failures, planned outages and other off-site factors, photovoltaic power plants sometimes operate below their power generation capacity, and photovoltaic power plants operating below their power generation capacity will inevitably cause power loss . Calculating the power loss of photovoltaic power plants is of great significance to realize the stable and reliable operation of phot...

AI Technical Summary

Problems solved by technology

However, manual screening is easily affected by the sense of responsibility of personnel and has a large workload; inverter alarm signals are easily affected by false positives and missed negatives, and not all abnormalities can be sent out in the form of alarms, and those that cannot be sent out in the form of alarms Abnormal (such as data abnormality, occlusion), the abnormal model inverter cannot be eliminated according to the inverter alarm signal

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