ÇUKUROVA UNIVERSITY INSTITUTE OF NATURAL AND APPLIED ...

5. SIMULATION RESULTS AND CASE STUDIES Mustafa İNCİ
Table 5.8. Comparison and RMS values of phase voltages in open loop and close
loop control method
RMS Values Of Phase Voltages
Fault Type Open Loop Closed Loop
Va Vb Vc Va Vb Vc
Single Phase Fault 6.35 6.35 6.17 6.35 6.35 6.35
Two Phase Fault 6.15 6.15 6.35 6.32 6.32 6.35
Three Phase Fault 6.1 6.075 6.08 6.27 6.26 6.25
As it is seen from simulation results, closed loop shows better performance
than open loop control method. Also, simulation results show the effectiveness of
closed loop control method against open loop method. It is clear that injected voltage
in close loop has more sinusoidal shape than injected voltage than open loop. Closed
loop regulate the output voltage and keeps it constant at the side where a nonlinear
load is connected.
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