The　hybrid　AC/DC　admittance　of　interlinking　converters　operating　under　AC　voltage　control　mode　may　contain　right　half-plane　(RHP)　pole(s),　and　thus,　the　existing　harmonic　stability　analyses　on　grid-tied　interlinking　converter　systems　may　become　inapplicable　as　well.　Aiming　at　addressing　this　deficiency,　this　letter　modifies　the　hybrid　AC/DC　admittance　definition　and　re-studies　the　harmonic　stability　of　a　grid-tied　interlinking　converter　operating　under　AC　voltage　control　mode.　The　results　reveal　that　when　the　control　mode　of　an　interlinking　converter　changes　from　P/Q　control　to　AC　voltage　control,　the　system　minor-loop　gain　utilized　to　assess　the　AC-side　stability　evolves　to　its　inverse　matrix.　In　contrast,　the　stability　assessment　related　to　the　DC　side　(and　the　coupling　interaction　between　the　AC　and　DC　sides)　remains　unchanged.　Furthermore,　the　DC-and　AC-side　stabilities　can　also　be　regulated　independently　and　are　dominated　by　the　d-axis　and　the　q-axis　controllers,　respectively.　©　1969-2012　IEEE.