In order to overcome the negative impact of the series resonant circuit in parallel connection

in this paper

a new topology structure is proposed for series hybrid active power filter（SHAPF）.Based on analyzed the tradition SHAPF topology structure and inverter circuit connect in series with a resonant circuit

the experimental research of the 5 KVA power system for three-phase 380 V is processed

the experimental results show that is steady for the additional series resonant circuit

THD% of the power system current extent is less than 5%

the voltage-drop of the power system in the series resonant circuit extent is less than 5 V.Experimental results and analyzed aim is basic tally

in current the topology structure of all SHAPF

the new topology structure has better price-performance ratio and application prospect.