Advanced Vector Controller for a Four-Switch Three-Phase Rectifier under Unbalanced Grid Voltage

Figure 15

Harmonic distortion of three-phase input current under unbalanced condition; (a–c): current for phase a, b, and c with the proposed controller; (d–f): current for a, b, and c with the conventional controller.

(a)

(b)

(c)

(d)

(e)

(f)