ÇUKUROVA UNIVERSITY INSTITUTE OF NATURAL AND APPLIED ...

5. SIMULATION RESULTS AND CASE STUDIES Mustafa İNCİ
Table 5.7. Sag inception and finish time for three methods
Voltage Sag (Phase A) Inception Finish Result
EPLL 0.3028 s 0.4046 s Medium
SRF 0.3012 s 0.4019 s Fast
SogiPLL 0.3039 s 0.4055 s Slow
It is shown Table 5.7, SRF is the best way to detect voltage sag and swell
compared to EPLL and SOGIPLL. Although EPLL and SogiPLL extract the phase
information compared to SRF, SRF is more superior than EPLL and SOGIPLL due
to its speed and accuracy. However, It is clear that EPLL and SOGIPLL have more
oscillatory than SRF as shown in Figure 5.2 (c).
Figure 5.3 and Figure 5.4 show injected voltages and load-side voltages by
using three sag detection methods.
Figure 5.3. Injected voltages by using three sag detection methods
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