Full-size photovoltaic module IAM testing device and testing method thereof

Abstract

The invention relates to the technical field of testing devices, in particular to a full-size photovoltaic module IAM testing device and a testing method thereof.The full-size photovoltaic module IAM testing device is provided with a transverse rod, rotating shafts are symmetrically and vertically arranged at the positions, opposite to the ground, of the lower end of the transverse rod, and a bearing penetrates through the joint of one end of each rotating shaft and the transverse rod; the other end of the rotating shaft is fixed on a support, and a photovoltaic assembly is fixed on the support. According to the full-size photovoltaic module IAM test device and the test method thereof, the power generation performance of the full-size photovoltaic module at different angles can be measured, so that a laboratory test result is closer to the actual power generation efficiency of a photovoltaic power station; the power generation efficiency of the photovoltaic module is guaranteed, and the income of the whole photovoltaic power station is improved.

Description

technical field [0001] The invention relates to the technical field of testing devices, in particular to a full-scale photovoltaic module IAM testing device and a testing method thereof. Background technique [0002] With the continuous progress of society, photovoltaic power plants have developed rapidly. In photovoltaic power plants, photovoltaic modules are the core components of photovoltaic power plants, and their power generation efficiency directly affects the revenue of photovoltaic power plants. Usually, when evaluating the power generation efficiency of photovoltaic modules in the laboratory, the light source is used to illuminate vertically to measure the power generation efficiency of photovoltaic modules at this time. However, in outdoor practical applications, there are different angles between incident sunlight and photovoltaic modules according to different installation methods. The IEC61853-2 standard introduces the measurement method for the influence of ...

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Problems solved by technology

Due to the size of the simulated light source in the indoor laboratory and the size of the component installation fixture, each laboratory currently uses a test sample instead of a finished component sample to avoid the situation that cannot be measured due to size problems

Existing testing tools and testing methods can only measure the power generation efficiency of single-chip photovoltaic cells under different angles by using component samples. However, the basic unit of a photovoltaic power station is a photovoltaic module. Generally, a photovoltaic module contains 60 to 144 single-chip photovoltaic cells. The data measured in the laboratory cannot match the actual application scenario, resulting in a large deviation between the test results of the laboratory sample and the actual power generation efficiency

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