abc to dq0 block in simulink is giving 3 outputs can u please help me

while conecting the grid voltage signal through pll to a function block ,we have to pass the dq0 signal to the function ...so when we insert abcto dqo block ,abc to dq0 block is taking vabc and wt as input BUT is giving 3 outputs ...why 3... we only need 2 outputs ..that is vd and vq ...can u please help me

Answer 1

[Miguelo Angelico]

It gives 3 outputs because that's what it does, direct, quadrature and zero sequence, in most cases the zero sequence is not used so you can ignore it