An outdoor test platform for solar photovoltaic modules and an online analysis method for power generation performance

Abstract

The invention discloses an outdoor test platform of solar photovoltaic modules and an electricity generation performance online analysis method thereof. The outdoor test platform of the solar photovoltaic modules comprises two groups of the photovoltaic modules, a capacitor group, a power resistor, a charging control circuit board, a storage battery and a plurality of unidirectional switches, wherein the charging control circuit board comprises a CPU (central processing unit), an irradiance measurement module, a temperature measurement module and a storage module, and the CPU achieves switching of the two groups of the photovoltaic modules by controlling closing and opening of the unidirectional switches, simultaneously collects temperature of battery acid, and executes a charging strategy of the storage battery according to future weather conditions. The electricity generation performance online analysis method of the outdoor test platform of the solar photovoltaic modules includes: sending data measured by the outdoor test platform to a remote control computer in real time; dividing backboard temperatures and coplanar irradiation degrees of the photovoltaic modules at the same moment; generating a histogram divided according to the temperatures and the irradiation degrees; finally, generating a contrast analysis diagram of generating capacity of the two groups of the photovoltaic modules. The outdoor test platform of the solar photovoltaic modules and the electricity generation performance online analysis method thereof achieve comparison and evaluation for the two groups of the solar photovoltaic modules in an outdoor complex work environment.

Description

technical field [0001] The invention relates to an outdoor test platform of a solar photovoltaic module and an online analysis method for power generation performance, belonging to the technical field of solar energy. Background technique [0002] With the rapid development of science and technology, the demand for energy is increasing at home and abroad, especially after entering the 21st century, energy issues are becoming important issues in society, economy, environment, etc. Green renewable resources are playing an increasingly important role in the world energy crisis. In recent years, the domestic solar photovoltaic industry has developed rapidly. The output of photovoltaic modules of various photovoltaic companies has increased year by year, and the reliability of photovoltaic modules has been increasing. Comprehensive measurement has become an indispensable step in the production process of various photovoltaic enterprises. [0003] At present, the test environmen...

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Problems solved by technology

However, it has obvious defects. There is a difference between the indoor simulated sunlight and the actual light. Since the environment is artificially simulated, it cannot effectively reflect the real state of the components in the outdoor complex working environment.

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