Chandra Sekhar NALAMATI, Niranjan KUMAR, Rajesh GUPTA

Multidirectional power flow in three-port isolated DC-DC converter for multiple battery stacks

The advances in the field of power electronics have created a superior platform for interfacing clean renewable resources with the ever-growing energy storage technology. In this paper, a multidirectional power flow operation in the three-port isolated DC-DC converter (TBDC) topology has been demonstrated for interfacing different battery energy storage sections to increase the system reliability. Comparison of multiple battery integration with dual active bridge and TBDC has been presented. Converter analysis has been conducted using the Fourier series harmonic model and converter loss calculation is also presented. Power flow controller has been proposed for closed-loop control of the TBDC. The performance of the converter has been tested using MATLAB-based simulation and three modes of power flow control operation have been verified through scaled down laboratory experimental setup.

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