Yes for the harmonics I have ideas, since there is a very good visual agreement between the grid voltages I’ve analyzed in details and the harmonics current which is flowing. See the scope capture when the Id current set point is set to 0 → only the harmonic current is visible. More precisely, the harmonic current is the opposite (× some conductance factor) of the harmonics voltage (red curve in 1st and 2nd panes), which is coherent since grid voltage acts as a “back emf”.
