To　suppress　output　current　amplification,　virtual　resistor　damping　strategy　is　widely　used　in　LCL　type　inverter　control.　Existing　virtual　resistor　is　mainly　used　in　application　of　fundamental　harmonic　energy　transformation,　ignoring　its　influence　on　output　harmonic　current　control.　This　will　adversely　affect　output　harmonic　current　control.　For　application　in　active　power　filter　(APF),　load　harmonic　current　compensation　performance　is　hardly　guaranteed.　Based　on　comparison　between　inverter　model　with　virtual　resistor　damping　and　2nd　order　low-pass　filter,　the　method　of　optimizing　virtual　resistance　is　found.　And　based　on　the　approximate　2nd　order　low-pass　filter　model,　reference　current　compensation　method　is　presented.　The　output　current　control　performance　is　guaranteed.　Simulation　and　experiment　results　are　provided　to　validate　correctness　of　the　modeling　and　effectiveness　of　the　virtual　resistor　control　and　phase　compensation　control.　©　2018,　Power　System　Technology　Press.　All　right　reserved.