Dual Active Bridge DC-DC Converter with Improved Control Approach using Modified Control Strategy with Optimization Method

Active clamp flyback is used as a high-quality converter topology to obtain high frequency power. The dual-loop dual-variable (DLDV) control approach, which includes voltage, current, and period directive loops, has been found to be very suitable for use in active clamp flyback converters. In contrast, a complex control framework can cause the controller to be difficult to design, causing the system's dynamic response to suffer. As a result, twin active bridge DC-DC converters with enormous capacity and high power have been used. As a result, this investigation looks into a dual active bridge DC-DC converter with unbiased point clamping and dual phase-shift modulation. A small amount of backflow power and gentle switching procedures are required to improve the efficiency of a DC-DC converter. This study presents an improved control approach for modifying phase-shift variables based on bus voltage and set power. The operation of the converter can be tuned for gentle switching and the lowest possible backflow power using this control method. To estimate the system's performance, MATLAB software can be used.