Electromagnetic Immunity Analysis of a New Interface Device with Power Line Communication for Smart Grid and Energy Storage Applications

An analysis of EMC standards related to smart grid devices with PLC port has been carried out and the standardization lacks have been pointed out with reference to the evaluation of electromagnetic immunity to narrowband, coming from other communication systems connected to the grid, and RF disturbances conducted disturbances, usually present in a power grid. In particular, the paper analyses the electromagnetic conducted immunity of a new interface protection device (ID) for smart grid and energy storage applications. The new ID is equipped with a measuring board, a STM32 microcontroller, for data elaboration and memorization, and a ST7580 N-PSK powerline transceiver. An experimental test procedure have been carried out in order to investigate the immunity of the ID prototype to narrowband and RF disturbances conducted disturbances, respectively for the frequency range 10-150 kHz and 150 kHz-30 MHz.