Abstract
The output of photovoltaic generation system is influenced by the factors such as solar radiation, temperature and so on. So the change of photovoltaic generation power is a non-stationary random process that will impact on the grid. In order to promote large-scale photovoltaic generation connected to the grid, we need to configure energy storage devices for photovoltaic power station and in order to coordinate the allocation of photovoltaic system with energy storage system, we requires a thorough understanding of output characteristics of the photovoltaic system. This paper firstly analyzes the influence brought by the large-scale photovoltaic generation system connected to the grid and then introduces the effect factors of photovoltaic output. Based on the history data of the 100 kWp photovoltaic power station and the statistical method, the paper qualitatively and quantitatively analyzes the photovoltaic output performance; finally puts forward the PV output power evaluation index. The conclusions of this study will provide powerful data references for follow-up studies and have practical value.
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