## 7 Control Strategy and State Space Equations  
The controller for the proposed converter, as illustrated in Figure 7, employs a dual Proportional-Integral (PI) controller setup to enhance its operational efficiency. The first PI controller functions as an inner PI controller, ensuring the stability of the load current. Meanwhile, the second controller serves as an outer PI controller, responsible for maintaining the desired output voltage. The PI voltage controller operates by taking the difference between the target voltage and the actual output voltage as its input. Subsequently, it generates a reference current for the load based on this input. To prevent the converter from drawing excessive current, this reference current is deliberately limited. The disparity between the reference current and the actual current is then directed into the PI current controller, whose equation is denoted as (46). For optimal performance, it is essential to tune the Ki and Kp parameters of the controller. The output of the controller is input to the IC drive circuit used in the proposed converter (1 EDI60N12 AF). Each output of the IC drive provides pulses to the MOSFET. Additionally, both drives generate the same pulse for both the on and off states simultaneously. Notably, the parameters of the PI voltage controller should be set to be faster than those of the PI current controller. This ensures that the steady-state error is minimized and maintained at zero, contributing to the overall effectiveness of the control system. \[U(t)=Kpe(t)+Ki\int e(t) \tag{46}\]  
Upon implementing the recommended dual PI controller in the proposed converter to validate a consistent output voltage amidst varying input levels, Figure 7b unmistakably reveals that the converter maintains a steady 500 V output, even in the face of the input voltage reaching its lowest values. This implies that the proposed controller for the proposed converter is exceptionally reliable for applications requiring a consistently high output voltage. Moreover, it showcases the controller's adaptability across a broad range of duty ratios, contributing to higher power density in renewable energy applications. Figure 7c provides a visual demonstration of the converter's capability to furnish a variable output voltage spanning from 300 V to 770 V while maintaining a fixed input voltage. Noteworthy is the converter's rapid response to changes, ensuring a swift and precise adjustment in the output voltage. \begin{table}
\begin{tabular}{c c c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Items**} & \multicolumn{2}{c}{ \begin{tabular}{c} **The** \\ **Proosed** **Converter** \\ \end{tabular}  } & \multirow{2}{*}{ \begin{tabular}{c} **Ref** \\ **[3]** \\ \end{tabular}  } & \multirow{2}{*}{ \begin{tabular}{c} **[4]** \\ \end{tabular}  } & \multirow{2}{*}{ \begin{tabular}{c} **Ref** \\ **[8]** \\ \end{tabular}  } & \multirow{2}{*}{ \begin{tabular}{c} **[11]** \\ \end{tabular}  } & \multirow{2}{*}{ \begin{tabular}{c} **Ref** \\ **[13]** \\ \end{tabular}  } & \multirow{2}{*}{ \begin{tabular}{c} **[16]** \\ \end{tabular}  } & \multirow{2}{*}{ \begin{tabular}{c} **Ref** \\ **[19]** \\ \end{tabular}  } & \multirow{2}{*}{ \begin{tabular}{c} **[23]** \\ \end{tabular}  } & \multirow{2}{*}{ \begin{tabular}{c} **Ref** \\ **[26]** \\ \end{tabular}  } & \multirow{2}{*}{ \begin{tabular}{c} **[28]** \\ \end{tabular}  } & \multirow{2}{*}{\ \begin{tabular}{c} **[31]** \\ \end{tabular}  } \\ \hline \(\text{F}_{\text{S}}\) (kHz) & 150 & 20 & 50 & 100 & 50 & 100 & 20 & 5 & 50 & 1 & 31.3 & 100 \\ \hline \(\text{Vg}\) & 25-40 & 20 & 20 & 15 & 10 v & 300 v & 24 & 24 & 16 & 24 & 20 & 30 v \\ \hline \(\text{Vo}\) & \begin{tabular}{c} 325 v \\ 500 v \\ \end{tabular}