Voltage Oscillation on the AC Side of Series Active Filters and Its Suppression

摘要

Attention has been paid to practical applications of series active filters and series active capacitors into power systems. These consist of both voltage-source PWM inverters and matching transformers (MTs) for series-connection to power systems. The purpose of the matching transformer is not only to isolate the PWM inverter from the source, but also to match the voltage and current ratings of the PWM inverter with those of the source.