At　present,　doubly　fed　induction　generator　(DFIG)　occupies　the　market　of　wind　turbine　due　to　its　controllable　rotor　AC　current,　decoupled　active　and　reactive　power,　and　small　converter　capacity.　However,　the　detailed　model　with　power　electronic　switch　components　is　complicated　and　computationally　expensive　for　the　simulation　which　restricts　the　scale　and　the　speed　of　the　wind　power　system　simulation.　This　study　first　analyses　the　network　topology　and　control　strategy　of　DFIG　system　including　the　induction　generator,　AC–DC–AC　converters　which　largely　limit　the　speed　of　simulation,　and　the　strategy　of　stator　flux-oriented　vector　control.　Then　a　simplified　modelling　method　based　on　the　equivalence　of　control　effect　is　proposed.　Controlled　voltage　source　based　on　energy　balance　is　used　to　replace　the　pulse　width　modulation　control　part　in　both　grid　side　and　rotor　side.　Also,　this　study　simplifies　the　crowbar　circuit　considering　the　low-voltage　ride-through　requirement.　At　last,　this　study　gives　the　results　of　the　simplified　model　and　detailed　model　simulations　in　PSCAD　environment　which　show　accurate　matching　under　different　operation　States　and　faults　conditions.　The　results　verify　that　the　simplified　model　can　overcome　the　complex　process　of　power　electronics　device　simulation　and　solve　engineering　problems.　©　2017　Institution　of　Engineering　and　Technology.　All　Rights　Reserved.