In　view　of　the　shortcomings　of　torque　ripple　and　flux　ripple　in　direct　torque　control　(DTC)　of　permanent　magnet　synchronous　motor,an　improved　model　predictive　DTC　was　proposed.　In　the　two-phase　stationary　coordinate　system,the　expected　voltage　vector　which　made　the　electromagnetic　torque　and　stator　flux　linkage　which　reach　their　given　value　in　the　next　cycle　was　calculated　based　on　deadbeat　control.　By　introducing　virtual　voltage　vectors,voltage　vector　space　was　divided　into　13　sections,and　the　corresponding　actual　voltage　vector　was　selected　according　to　the　position　of　the　sector　where　the　desired　voltage　vector　was　located.　The　selectable　voltage　vectors　were　expanded　from　the　conventional　8　voltage　vectors　to　14　voltage　vectors.　The　proposed　method　possesses　the　fixed　duty　ratio　of　virtual　voltage　vector,simple　modulation　and　less　operation.　Simulation　comparisons　were　carried　out　for　original　DTC,traditional　model　predictive　DTC　and　improved　model　predictive　DTC.　The　simulation　results　show　that　the　improved　model　predictive　DTC　can　effectively　suppress　torque　ripple　and　flux　ripple,significantly　reduce　stator　current　distortion　rate　and　improve　system　robustness.　©　2020,　Harbin　University　of　Science　and　Technology　Publication.　All　right　reserved.