This　paper　proposes　a　rotor-side　converter　(RSC)　control　of　doubly　fed　induction　generator　(DFIG)　through　state-dependent　Riccati　equation　(SDRE)　approach　to　enhance　the　low　voltage　ride　through　(LVRT)　ability.　In　order　to　guarantee　the　stability　of　the　DFIG-based　wind　farm　under　external　disturbances,　a　robust　input-to-state　stability　(ISS)-based　controller　is　presented　in　cooperation　with　the　SDRE　approach.　The　robust　ISS　controller　is　proved　to　be　able　to　stabilize　the　wind　generation　system,　while　the　system　dynamics　are　not　guaranteed　to　be　of　high　performance.　By　parameterizing　the　robust　ISS　controller,　the　SDRE　approach　is　used　to　provide　guidance　for　the　selection　of　ISS　control　parameters.　Due　to　designfiexibility,　the　SDRE　control　has　the　ability　to　enhance　dynamic　performances　of　wind　generation　system　through　optimizing　the　state-dependent　coefficients.　Time-domain　simulations　are　carried　out　to　verify　the　effectiveness　of　the　proposed　control　approach.　Compared　with　the　conventional　PI　controller,　exact　linearization-based　nonlinear　controller,　and　robust　ISS　controller,　the　proposed　SDRE-based　RSC　control　has　the　ability　to　optimize　the　dynamics　of　the　wind　generation　system　during　and　after　faults,　and　has　better　LVRT　performance.