Aiming　at　the　current　error　caused　by　parameters　disturbance　and　model　mismatch,　a　robust　predictive　current　control　(RPCC)　with　internal　model　disturbance　observer　(IMDO)　is　proposed　to　achieve　high　accurate　current　control　of　permanent　magnet　linear　synchronous　motor　(PMLSM)　drives.　Firstly,　a　deadbeat　current　predictive　control　algorithm　based　on　the　mathematical　model　of　permanent　magnet　synchronous　linear　motor　is　constructed,　and　the　stability　domain　of　the　algorithm　is　obtained.　Thereby,　the　control　algorithm　is　stable　within　the　error　range　of　motor　parameters.　Secondly,　the　estimation　system　of　the　internal　disturbance　observer　is　estimated.　The　disturbance　is　introduced　into　the　voltage　equation　with　parametric　perturbation　to　ensure　that　the　observed　state　variables　continuously　approach　the　accurate　system　state　variables,　which　provides　real-time　disturbance　compensation　for　the　traditional　deadbeat　current　predictive　control　algorithm.　The　experimental　results　show　that　the　proposed　algorithm　can　achieve　fast　and　errorless　current　tracking　effect　when　parameter　disturbance　and　model　mismatch,　and　improve　the　robustness　of　the　system.　©　2018,　Electrical　Technology　Press　Co.　Ltd.　All　right　reserved.