Journal of Electrical Engineering ›› 2019, Vol. 14 ›› Issue (2): 24-29.doi: 10.11985/2019.02.005

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Minimum Reactive Power Control Strategy for Dual Active Bridge DC-DC Converter

GAO Shuai,ZHANG Xing,ZHAO Wenguang,GUO Huayue   

  1. School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009 China
  • Received:2019-05-06 Online:2019-06-25 Published:2019-10-25

Abstract:

A minimum reactive power control strategy based on the dual-phase-shift control with bidirectional inner phase shifts(DPS-BIPS) modulation strategy is proposed to solve the low operating efficiency of the dual active bridge DC-DC converter caused by the reactive power. The control strategy achieves a minimum reactive power operation over the full power range by seeking an optimal combination of shifts. The working principle of DPS-BIPS is introduced,and its mathematical model of transmission power and reactive power is established. The minimum reactive power control strategy is proposed. Finally, the effectiveness of the optimization control algorithm is verified by experiment.

Key words: Dual active bridge DC-DC converter, DPS-BIPS, reactive power, optimization control

CLC Number: