In　this　paper,　the　vector　control　theory　of　PMSM　is　studied,　and　the　double　closed-loop　control　system　of　PMSM　is　designed.　By　analyzing　the　mathematical　model　of　PMSM,　vector　control　principle　and　control　strategy　based　on　vector　control,　the　control　strategy　and　realization　method　of　this　paper　are　determined.　The　operating　principle　and　algorithm　of　space　vector　pulse　width　modulation　(SVPWM)　are　analyzed.　The　SVPWM　and　the　whole　control　model　are　simulated　by　Matlab/Simulink.　Finally,　the　hardware　system　is　built　with　TMS320F28335　TI　as　the　control　core.　The　control　system　is　tested.　The　test　results　prove　the　practicability　and　effectiveness　of　the　control　system.