Fig 1.
(a) Schematic diagram of the grid-tied PVS. (b) DC-DC boost PC.
Table 1.
Specifications of Solarex MSX60 60 W PV panel.
Table 2.
Parameters of DC\DC-PC.
Fig 2.
Equivalent circuit of a PV cell.
Fig 3.
Features of the PVS as I change.
(a) I-V characteristics. (b) P-V characteristics.
Fig 4.
Features of the PVS as T changes.
(a) I-V characteristics. (b) P-V characteristics.
Fig 5.
Overall system with the INC-FL and INC-FST.
Fig 6.
Flowchart for implementation of the modified INC algorithm with FL self-tuning based PID controller.
Table 3.
Fuzzy associative matrix.
Fig 7.
System performance at constant temperature and changing irradiance.
(a) I variable with constant T at 25 °C. (b) power responses. (c) Voltage responses. (d) Current response. (e) DC link Voltage response.
Fig 8.
System performance at constant irradiance and changing temperature.
(a) Constant I at 1000 W/m^2 with variable T. (b) Power responses. (c) Voltage responses. (d) Voltage responses. (e) DC bus voltage responses.
Fig 9.
System performance at irradiance and temperature variations.
(a) Variable T and variable I. (b) Power responses. (c) Voltage responses. (d) Current responses. (e) DC bus voltage responses.
Fig 10.
Investigated system efficacy under four techniques in all studied cases.
Table 4.
Control measures for all studied cases.
Table 5.
Comparative performance of the suggested technique with recently published works.