Page 13 - IJEEE-2023-Vol19-ISSUE-1

Almousawi & Aldair |9
(a) (a)

(b) (b)

(c) (c)

(d) (d)
Fig. 12: Simulation results for decreasing PV generation (a)
(e) Irradiation (b) Active power (c) SOC of BESS (d) Voltages

(f) of DC Bus & PV.
Fig. 11: Simulation results for increasing PV generation (a)
Irradiation (b) Active power (c) SOC of BESS (d) SOC of E. Fifth Scenario: SOC Regulation
SC (e) Voltage of BESS & SC (f) Voltages of DC Bus &
If the SOC reaches its maximum value (90%) as shown in
PV.
Fig. (13a), the operation of the controller focuses on
tnhoete"d'*(thaawt athyefr"o'*m(
regulating the MPPT as illustrated in Fig.
(13b). It is rises from 204 V to 236.6V.

Corresponding to the new reference voltage, the #'( as
illustrated in Fig. (13c) decreases to 3528 W to achieve the

power balance in the hybrid system as well as discontinuing

the BESS from charging. The BESS reacts quickly when the

load power increases, to accommodate the new load.

Therefore, the SOC is reduced to less than its maximum

value and the PV panel is forced to operate back with MPPT.