- #1

user2539

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Hello I'm reading this research paper about obtaining an accurate DC-link capacitor current equation. I've attached the paper.

Im struggling to understand a few things and was hoping someone could help with them.

1) How is the the value marked in the bracket after each V vector describing the contribution of this vector to the RMS current in the middle wire of the dc-link decided

2) It shows that Figure 3.c) is when ma <= 1, but wouldn't that case be when the arc is touching V7.

3) After substituting equations (9) and (14) into (15) to obtain (16), how does Ta/Ts and Tc/Ts go away and ma get in the equation.

Im struggling to understand a few things and was hoping someone could help with them.

1) How is the the value marked in the bracket after each V vector describing the contribution of this vector to the RMS current in the middle wire of the dc-link decided

2) It shows that Figure 3.c) is when ma <= 1, but wouldn't that case be when the arc is touching V7.

3) After substituting equations (9) and (14) into (15) to obtain (16), how does Ta/Ts and Tc/Ts go away and ma get in the equation.