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The left figure is the configuration of the control module of the aforementioned dc nanogrid.
Three voltage sensors and three current sensors were installed to measure the power consumed by each load.
The value measured by the installed sensor enters the input of the mcp8003 module and is converted into digital data for SPI communication of Raspberry Pi in mcp3008, an analog to digital converter.
The relay on the upper right is installed to switch ac power and dc power generated from the solar panel, and when the storage amount of the battery falls below a certain amount, the relay is connected to ac power to disconnect from the battery that is dc power and receive ac power.
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IEEE/ICACT20230159 Slide.09
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