# The Research of Complex Product Design Process Model under the Concept of Self-Recovery
## 6 Experimental Results  
We verified the wind amplification effect of the wind amplification device through simulation. The fluid simulation of the product was carried out using SolidWorks2016 software. The wall surface condition was set as the insulation wall surface, and the roughness was 60 \(\upmu\)m. Under the condition of standard atmospheric pressure, an ambient temperature of 293.20 k, and a fluid type of air, a wind force of 3 M/S was input. The simulation results show that the wind amplification device has a significant wind amplification effect, as shown in Figure 17. After confirming that the wind amplification device has a significant wind amplification effect, the final prototype is shown in Figure 18.  
It is difficult to directly measure the degree of dust adhesion, so the degree of dust adhesion can be expressed indirectly by the output voltage of the battery panel. Let the dust fall naturally above the system to make it adhere to the surface of the battery panel. The lower the output voltage of the battery panel, the higher the degree of dust adhesion. After different degrees of dust adhered to the surface of the panel, we recorded the output voltage of the no-dust intelligent photovoltaic power generation system, the dust-adhered intelligent photovoltaic power generation system, and the intelligent photovoltaic power generation system after performing the functional period oriented to self-recovery after 10 min under the same light intensity. The data of the experiment are shown in Table 5.  
Figure 16: Two types of functional periods of the intelligent photovoltaic power generation system.  
Figure 17: Simulation of the wind amplification device.  
To visually express the improvement in the self-recovery ability of the system, taking the improvement in the power generation efficiency as an indicator, the output voltage of the no-dust intelligent photovoltaic power generation system was recorded as \(U_{1}\), and the output voltage of the dust-adhered solar panel was recorded as \(U_{2}\). After performing the functional period oriented to self-recovery, the output voltage of the intelligent photovoltaic power generation system was recorded as \(U_{3}\), and the formula of the power generation efficiency \(\Delta\eta\) improvement is as follows:  
\[\Delta\eta=\frac{U_{3}-U_{2}}{U_{1}} \tag{5}\]  
The result of the experiment shows that the functional period oriented to self-recovery has significant cleaning ability. After performing the functional period oriented to self-recovery, the power generation efficiency of the system was significantly improved.  
Figure 18: Physical diagram of the intelligent photovoltaic power generation system.  
\begin{table}
\begin{tabular}{c c c c c} \hline
**Group Number** & \(\mathbf{U_{1}}\) & \(\mathbf{U_{2}}\) & \(\mathbf{U_{3}}\) & \(\Delta\eta\) \\ \hline
1 & 6.26 V & 5.12 V & 5.54 V & 6.71\% \\
2 & 6.06 V & 5.38 V & 5.79 V & 6.77\% \\
3 & 5.83 V & 4.85 V & 5.25 V & 6.86\% \\
4 & 5.44 V & 4.63 V & 5.01 V & 6.99\% \\
5 & 7.11 V & 5.61 V & 6.12 V & 7.17\% \\
6 & 7.67 V & 6.37 V & 6.96 V & 7.69\% \\
7 & 7.43 V & 6.45 V & 6.81 V & 4.84\% \\
8 & 7.35 V & 6.28 V & 6.75 V & 6.39\% \\
9 & 7.20 V & 6.16 V & 6.62 V & 6.39\% \\
10 & 7.04 V & 6.03 V & 6.49 V & 6.53\% \\
11 & 6.33 V & 5.12 V & 5.60 V & 7.58\% \\
12 & 6.12 V & 5.38 V & 5.86 V & 7.84\% \\
13 & 5.88 V & 4.85 V & 5.32 V & 7.99\% \\
14 & 5.88 V & 4.85 V & 5.12 V & 4.59\% \\
15 & 5.88 V & 4.85 V & 5.43 V & 9.86\% \\ \hline \end{tabular}
\end{table}
Table 5: Experimental data.