Adding sine waves properly

Hi,

for a student project I'm examining the behavior of the current of a three phase transformer in no load operation.

For this it is necessary to add multiple sine waves (fundamental and harmonics). To include the phase shift of phases two and three I used transport delays. The problem here is that I cannot use negative times, which I understand but I still need to include the phase shifts that result in a negative time.

I'm not sure if this is the way to go for adding sine waves and especially phase shifts. I hope somebody can help.

Answer 1

[Walter Roberson]

A phase shift of is equivalent to a phase shift of

[Lukas Wickersheim]

Thanks so much, we tried this and it worked just fine!