EMI Conducted Emission on Synchronization Conditions for FPGA-Based Multidrives Network

The power converters are essential for the development of renewable energy generation, conversion processes and energy storage systems. Besides, some applications require synchronization between converters e.g., industrial use as AC drives for motors, pumps, fans, drills and wheels. Thus, this paper presents a theoretical study with experimental validation of FPGA frequency and time synchronization conditions and its impact on conducted emissions (CE) from multidrives operations. For EMI assessment over those conditions, a LabVIEW-FPGA-based cyber-physical testbench was used to control the DC/AC converters using SPWM. It shows how the synchronization conditions impact the EMC in multiconverters systems over the EMI emissions and also highlights measures to mitigate the peak levels. The findings demonstrate that, depending on the condition, it reduces up to 29 dB of ground current peaks and 8 dB in EMI level, which may improve the EMC in DC distributed microgrids.