Table 2.
Simulation parameters.
| Parameter | Symbol | Value | Notes/assumptions |
|---|---|---|---|
| PV array rated power | PPV | 50 kW | Maximum available power from PV array |
| PV array DC voltage | Vdc | 800 V | Operating DC voltage |
| PV array current | Idc | 62.5 A | Calculated as PPV/Vdc |
| Boost inductor | Lb | 2 mH | For DC-DC boost converter |
| Boost converter switching freq. | fsw | 10 kHz | PWM switching frequency |
| DC-link capacitor | Cdc | 2200 µF | Ensures stable DC-link voltage |
| Grid voltage (L-L, rms) | Vgrid | 400 V | AC side voltage |
| Grid frequency | fgrid | 50 Hz | Nominal AC frequency |
| Inverter output current (rms) | Igrid | 72.2 A | Calculated as PPV/(√3 * Vgrid) |
| Inverter oversizing ratio | – | 1.1 | 10% oversizing |
| dq-axis current controller gains | Kp, Ki | 0.3, 20 | For active current loop |
| Reactive power PI regulator gains | Kp, Ki | 0.5, 30 | For reactive power control |
| PLL bandwidth | – | 50 Hz | Phase-locked loop |
| Simulation sampling time | – | 50 µs | For digital control and simulation |