Its working principle is that when the photovoltaic components generate excess power during the day, the surplus electrical energy is converted into chemical energy and stored in the internal battery pack; and when night falls or encounters rainy weather, the photovoltaic system generates insufficient power, and then the stored electrical energy is released to provide a stable power supply for the load.
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For the lithium iron phosphate lithium ion battery system cabinet: A numerical model of the battery system is constructed and the temperature field and airflow organization in the battery cabinet are obtained, the experimental results verify the rationality of the model; The influences of inlet velocity, single battery spacing and battery pack spacing on the heat dissipation performance of the battery cabinet are studied, the results can support the design, operation and management of the energy storage cabinet; The results show that the battery cabinet can be cooled by natural convection under low-rate operation, and forced air cooling is required under high-rate operation; the maximum temperature and maximum temperature difference of the cabinet show a trend of first decreasing and then increasing with the increase of the battery spacing; the battery pack spacing does not have a significant impact on the heat dissipation performance of the battery cabinet, so the installation space can be saved by reducing the battery pack spacing.
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The utility model relates to the technical field of energy storage, and particularly discloses a photovoltaic energy storage cabinet, which comprises at least one battery cabinet and a control cabinet, wherein the battery cabinet comprises a main cabinet body and a cover body which are detachably connected, and cable through holes are formed in two sides of the cover body; the main cabinet body comprises a battery pack and an outer shell, wherein a first electrical interface and a second electrical interface are arranged on the top surface of the battery pack; the control cabinet is provided with at least two insertion grooves on an outer vertical surface of one side connected with the battery cabinet, one outer vertical surface of the battery cabinet is provided with an insertion plate matched with the insertion grooves, the other outer vertical surface of the battery cabinet is provided with insertion grooves with the same number and positions as the insertion plates, the adjacent surfaces of the two connected sides of the battery cabinet and the control cabinet are provided with connecting grooves, and threaded holes are formed in the connecting grooves and used for assembling connecting pieces.
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