ABSTRACT This paper introduces a bidirectional power converter that combines high‐voltage gain with reduced voltage stress across the switching devices. These characteristics are obtained through the implementation of a switched‐capacitor structure operating in voltage multiplication mode. The proposed converter is designed for supporting both step‐up and step‐down modes. Moreover, the configuration enables operational simplicity through complementary PWM modulation. A detailed analysis including system modeling, control strategy development, and power loss estimation is presented. The performance is evaluated under a variety of off‐grid operating conditions, including abrupt load transitions, rapid changes in power flow direction, and transient disturbances. To validate the theoretical evaluations, a 50‐ to 500‐W laboratory prototype was constructed, operating within an input–output voltage range of 72–400 V. Experimental results confirm the robustness and dynamic response, achieving a peak of efficiency of 95.6% at 220 W. Additionally, the converter demonstrated the capability to reverse the direction of power flow in real time, without necessitating system shutdown, thereby confirming its applicability for efficient energy storage integration.
Nimitti et al. (Thu,) studied this question.