“…where symbol * means complex conjugate value By substituting (5) and (6) =T i0 (n,e)+ T i1 (n,e)+ T i2 (n,e)+ T iC (n,e) (8) where in (8) T i0 (n,e) is the electromagnetic torque without DC-link ripple component, T i1 (n,e) andT i2 (n,e) are part of the electromagnetic torque components respecting the DC-link voltage ripples and T iC (n,e) is the electromagnetic torque component from stator and rotor pulsation parts with very small value T iC (n,e)=0.These separate torque components can be seen from Fig.10. From Fig.11 we can see comprasion of the electromagnetic torque both for a constant DC link voltage and DEC-link ripple voltage.…”