Traditional　predictive　control　models　are　highly　dependent　on　the　system　model,　and　suffer　from　poor　robustness.　To　address　these　issues,　an　improved　model-free　prediction　current　control　method　for　three-phase　three-level　NPC(Neutral　Point　Clamped)　inverters　is　proposed.　This　method　predicts　the　output　current　value　of　the　next　time　by　using　the　load　current　detected　at　the　present　time　and　the　current　difference　vector　calculated　in　the　previous　time　period,　without　any　system　model　parameters.　The　load　current　is　effectively　controlled　by　introducing　a　counting　factor　that　updates　the　current　difference　in　time.　At　the　same　time,　the　selected　inverter　switching　state　that　minimizes　the　given　cost　function　is　applied　in　the　next　control　period.　The　proposed　method　only　needs　to　sample　the　load　current　once　in　one　sampling　interval,　while　it　has　a　large　amount　of　calculation　and　relatively　high　requirement　for　the　system　processor.　The　simulative　and　experimental　results　show　that　the　proposed　control　strategy　exhibits　satisfactory　steady-state　characteristics　and　dynamic　response　speed,　and　can　eliminate　the　negative　impact　of　load　parameters　on　the　stability　of　the　control　system.　©　2019,　Electric　Power　Automation　Equipment　Press.　All　right　reserved.