Fig. 15. Compensation current when the load current IL is 4.2 A. (Ch1) Line
voltage (phase A), 50 V/Div. (Ch2) Line current (phase A), 2 A/Div. (Ch3) is1,
2 A/Div. (Ch4) is2, 2 A/Div.
compensation current goes through loop I. Therefore, almost
half of the compensation current goes toward reducing the LC
filter current rather than toward shaping the rectifier current into
the triangular reference.
The active power injection function of the current source is3
is also verified in experiment. A dc source is connected to the