## 9 Experimental Setup  
The experiment studies will be used to validate the proposed algorithm under a loading pump. The simulations in this study were conducted using MATLAB-implemented systems, and the experimental work was performed to confirm the simulation results under the same conditions. The experimental setup includes the MicroLabBox dSPACE1202 platform, which conducts the proposed MDOF-FLC, SUI-PID, and normal FLC with a sampling time of 0.0001 s. Typhoon HIL-402 was used to emulate the hardware configuration specified in [28], and the experimental setup of the system is illustrated in Figure 23.  
Figure 24A,B,C displays the PV system's experimental output power and voltage results with the proposed MDOF-FLC, SUIPID, and the normal FLC under constant atmospheric conditions (T = 25 \({}^{\circ}\)C, G = 1000 watts/m\({}^{2}\)). The figures pass from no control action mode (region part 1) to control action mode (region part 2). The no control action mode means that a constant duty cycle is applied to the converter in case the control action mode does not go on. Every division represents 100 watts for the power curve; for the voltage curve, every division represents 100 volts. The maximum output power from the PV module is 150 watts under conditions of a temperature of 25 \({}^{\circ}\)C and irradiation of 1000 Watt/m\({}^{2}\). The experimental results, Figure 24A, show that the power curve has about 1.5 divisions * 100 watts (HIL probe) * 1 watt/div (scope probe) = 150 watts, approximately. The voltage curve shows 0.18 divisions * 100 volts/div (HIL probe) * 2 Volts/div (scope probe) = 0.18 * 2 * 100 = 36 V, the maximum output voltage of the module. The results show steady power and voltage levels for all controllers under uniform irradiance and temperature levels. However, the MDOF-FLC has fewer oscillations in the power level during constant atmospheric conditions compared to the SUI-PID and FLC.  
Figure 25A-C displays the effects of increasing or decreasing irradiance levels with the proposed MDOF-FLC, SUIPID, and normal FLC, respectively, on the PV output power and voltage. The irradiance levels change from 1000 Watt/m\({}^{2}\) (region 2) to 500 Watt/m\({}^{2}\) (region 3), and finally back to 1000 Watt/m\({}^{2}\) (region 4), and region 1 represents the no control action mode. The results show an excellent ability to track the MPP under varying irradiance levels with the three controllers. The voltage level remains steady under varying irradiance levels for all controllers. However, the MDOF-FLC has fewer oscillations in the power level during the variation in the irradiance levels compared to the SUI-PID and the FLC.  
Figure 26A-C displays the effects of increasing or decreasing the temperature levels with the proposed MDOF-FLC, SUIPID controller, and normal FLC on the PV output power and voltage. The temperature levels change from 25 \({}^{\circ}\)C (region 1) to 35 \({}^{\circ}\)C (region 2), then 45 \({}^{\circ}\)C (region 3), and finally back to 25 \({}^{\circ}\)C (region 4). The results show an excellent ability to track the MPP under varying irradiance levels with the three controllers. The power level remains steadier under varying temperature levels with the MDOF-FLC controller compared to the SUI-PID and normal FLC.