Backflow Power Optimization Control for Dual Active Bridge DC-DC Converters

Backflow Power Optimization Control for Dual Active Bridge DC-DC Converters

Abstract: This paper proposes optimized control methods for global minimum backflow power based on a triple-phase-shift (TPS) control strategy. Three global optimized methods are derived to minimize the backflow power on the primary side, on the secondary side and on both sides, respectively. Backflow power transmission is just a portion of non-active power transmission in a dual active bridge ...

Application of PWM Control Strategy on Z-Source Isolated Dual active bridge DC-DC Converters

DC-DC Power Converters

Dc-dc power converters are employed in a variety of applications, including power supplies for personal computers, office equipment, spacecraft power systems, laptop computers, and telecommunications equipment, as well as dc motor drives. The input to a dc-dc converter is an unregulated dc voltage Vg. The converter produces a regulated output voltage V, having a magnitude (and possibly polarity...

Digital Current Mode Control Algorithms for High-Power Half-Bridge DC/DC Converters

Digitally controlled systems have many well known advantages in comparison to analogue systems e.g. programmability, higher flexibility and modularity, fewer components, lower sensitivity to noise and environment conditions. Theoretically, all analogue control algorithms can be digitalized. But from practical point of view the digitalization often ends up with some major difficulties, which wil...

Soft-Switching performance of Dual Active Bridge DC-DC Converter

This paper presents the Zero-Voltage Switching (ZVS) performance of Dual Active Bridge (DAB) DC-DC converter for high power density aerospace applications. Switching transitions of the transistor occurring in favorable conditions such as device zero-voltage or zero-current is called as soft-switching. The benefits of soft-switching are reduced switching losses, switch stress, low electromagneti...