The fault current of doubly-fed induction generator(DFIG)is highly complicated when a symmetrical or asymmetrical fault occurs in the grid. Especially

when DFIG's crowbar is not input under nonsevere fault conditions

the fault current of DFIG fed into the grid is rated to its control strategies

the grid's reactive power demand

converters' capacity

etc. In order to meet the demand of fault analysis and relaying protection setting for the grid with DFIGs

according to different control strategies of DFIG during the fault

this paper puts forward a novel steady fault current calculation model of DFIG considering grid side converter current and different control strategies. Then

the grid-side converter current influence on DFIG's fault current is analyzed. Finally

the correctness of the model proposed is verified by digital simulation. This work is supported by National Natural Science Foundation of China(No. 51177058).