Parameters | p PLL | Park PLL | Digital PLL | SRF-PLL |
−5 Hz frequency change Settling time Static Error |
9 cycles 0 deg |
9 cycles 0 deg |
2.9 cycles 4 deg |
2.7 cycles 3 deg
|
+5 Hz frequency change Settling time Static Error |
7 cycles 0 deg |
7 cycles 0 deg |
2.5 cycles 4 deg |
2.4 cycles 3 deg |
30% increase in voltage Settling time |
5 cycles |
2 cycles |
0.5 cycles |
0.2 cycles |
50% increase in voltage Settling time |
6 cycles |
3 cycles |
0.7 cycles |
0.3 cycles |
5th and 7th order harmonic injection | Un-locked | Un-locked | Well locked | Well locked |