An Analysis of the Power Characteristics of Bidirectional Full-Bridge DC-DC Converter Under Triple-Phase-Shift Control

doi:10.11930/j.issn.1004-9649.2016.07.122.06

Abstract

Abstract: To improve the efficiency of bidirectional full-bridge DC-DC converter, a triple-phase-shift(TPS) control concept is presented base on current dual-phase-shift(DPS) control methodology. This paper analyzes the working principles of the TPS control and the related operating mode of bidirectional full-bridge DC-DC converter. The corresponding mathematical model of the converter is established and the related power characteristics are analyzed. Moreover, the related formulas of the converter under TPS are derived for the convenience of comparative analysis between the TPS control mode and the DPS control mode. The triple-phase-shift control not only retains the advantages of the dual-phase-shift control, but also holds obvious advantages including lower peak current and RMS current, low reactive power, and high efficiency. Finally, a simulation is carried out to verify the excellent performance of the triple-phase-shift control.

Key words: phase shift, bidirectional full-bridge DC-DC converter, peak current, RMS current, reactive power

CLC Number:

TM46

GU Hongjie, JIANG Daozhuo, YIN Rui, HUANG Shuai, LIANG Yiqiao, WANG Yufen. An Analysis of the Power Characteristics of Bidirectional Full-Bridge DC-DC Converter Under Triple-Phase-Shift Control[J]. Electric Power, 2016, 49(7): 122-127.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2016.07.122.06

https://www.electricpower.com.cn/EN/Y2016/V49/I7/122

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