From: Grid power quality enhancement using an ANFIS optimized PI controller for DG
Harmonic mitigation | Grid voltage distortion Vg | Local nonlinear load il | Compensated grid current ig | |||
---|---|---|---|---|---|---|
PI | PI-RC | Fuzzy | ANFIS-PI optimized | |||
Case-1 (THD-%) | – | – | 1.57 | 1.57 | 1.57 | 1.57 |
Case-2 (THD-%) | – | 54.74 | 11.9 | 1.76 | 1.35 | 1.35 |
Case-3 (THD-%) | 4.82 | 54.74 | 18.6 | 1.85 | 1.35 | 1.35 |
Case-4 (THD-%) | 24.91 | 61.35 | 22.6 | 25.2 | 12.4 | 4.5 |