Decoupling of phasor type DFIG model in stator flux reference frame

Dear all, I want to control the phasor type DFIG model in stator flux reference frame in order to decouple the active and reactive power. In this model the asynchronous machine is modeled in stator flux dq reference frame but applying the decoupling equations and ignoring the mutual flux angel, I can't achieve the decoupled active and reactive power. It seems that another angle must be considered. If you have any experience about it please do me a favor and help me. Best regards