connected through a controlled buck chopper to PM DCM
driving centrifugal pump load, also the ANN MPPT control
unit is included.
However the buck converter is implemented without the
output filter because it is feeding an inductive load. The
parameters of each block used in this system are listed in
Table (2). The effect of solar insolation level was given by
two different stepwise cases, decrements and increments on
the solar insolation. In the first case the solar insolation was
decreased from 650 W/m2 to 550 W/m2 to 450 W/m2 to 250
W/m2 at the time instants 1s, 2s and 3s as shown in Figure 6.
In the second case the solar insolation started from 200 W/m2
and then stepped up to 600 W/m2 with 100 W/m2 steps at the
time instants 1s, 2s, 3s and 4s, respectively, as shown in
Figure 10. Figures 8 and 12, Figures 7 and 11 and Figures 9
and 13 The cases show the good matching between the motor
speed ωm, the PV power Ppv and the duty cycle control D of
the ANN controller with the theoretical results when solar
insolation is increasing or decreasing. The same figures
indicate that the directly connected system is operating far
from the MPP in both cases under all insolation conditions.
เชื่อมต่อผ่านสับเจ้าชู้ควบคุม connected through a controlled buck chopper to PM DCM
ขับรถโหลดปั๊มแรงเหวี่ยงยัง driving centrifugal pump load, also the ANN MPPT control
ควบคุมหน่วยรวมunit is included.
แต่แปลงเจ้าชู้จะดำเนินการได้โดยไม่ต้องกรองเอาท์พุทเพราะมันเป็นอาหารโหลดอุปนัย However the buck converter is implemented without the
output filter because it is feeding an inductive load. The
parameters of each block used in this system are listed in
Table (2). The effect of solar insolation level was given by
two different stepwise cases, decrements and increments on
the solar insolation. In the first case the solar insolation was
decreased from 650 W/m2 to 550 W/m2 to 450 W/m2 to 250
W/m2 at the time instants 1s, 2s and 3s as shown in Figure 6.
In the second case the solar insolation started from 200 W/m2
and then stepped up to 600 W/m2 with 100 W/m2 steps at the
time instants 1s, 2s, 3s and 4s, respectively, as shown in
Figure 10. Figures 8 and 12, Figures 7 and 11 and Figures 9
and 13 The cases show the good matching between the motor
speed ωm, the PV power Ppv and the duty cycle control D of
the ANN controller with the theoretical results when solar
insolation is increasing or decreasing. The same figures
indicate that the directly connected system is operating far
from the MPP in both cases under all insolation conditions.
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