Investigation on Bidirectional DC/DC Converters for Energy Management and Control

Conference paper

Abstract

This paper investigates a DSP based dual active full bridge phase shift (DAFBFS) DC/DC power converter for performing advanced energy management and control functions in renewable energy based power generation systems, e.g., wind and solar power generation systems. The hardware system of the proposed DAFBFS DC/DC converter includes two full-bridge circuit units, a coupling inductor and a high-frequency transformer especially designed for fast charging and discharging control of a battery energy storage system (BESS). The proposed DAFBFS converter has a number of merits, i.e., electrical isolation, high voltage gain, fast response in real-time current regulation and simplicity in designing its controllers with a single control variable. In this paper, issues regarding the operating principles, mathematical modeling and controllers of the DAFBFS converter are discussed. To achieve a better efficiency and enhance functional flexibility in hardware implementation, a fully digital control scheme with a TI DSP as the core controller is developed and experimentally verified. Typical simulation and experimental results are presented to demonstrate the performance of the proposed control scheme.

Keywords

Battery energy storage system Dc/Dc converter Digital controller Digital signal processor Energy management Renewable power generation 

Notes

Acknowledgements

This work was supported in part by the Ministry of Science and Technology, R.O.C. under Grant MOST 105-2221-E-239-022.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Department of EE, CEECSNational United UniversityMiaoli CityTaiwan, ROC

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