Simple PWM phase shift control strategy for a dual active bridge clamp converter

被引：0
|
作者：
Sun Y. [1 ]
Cheng X. [1 ]
Wang L. [1 ]
Cao L. [2 ]
Ding G. [1 ]
机构：
[1] School of Electrical Engineering, University of Jinan, Jinan
[2] School of Information and Electrical Engineering, Shandong Jianzhu University, Jinan
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2022年 / 50卷 / 16期
基金：
中国国家自然科学基金;
关键词：
clamp converter; dual active bridge; efficiency; modulation method; simple control;
D O I：
10.19783/j.cnki.pspc.211433
中图分类号：
学科分类号：
摘要：
A simple PWM phase shift control strategy for a dual active bridge clamp converter is proposed to address the problems of large current stress and low transmission efficiency over a wide voltage range in the conventional phase shift control method. First, the operational period and duty cycle of the clamp switch are used instead of the inter phase shift ratio of the converter to simplify the primary H-bridge operation and improve the degrees of control freedom. Then the duty cycle of the secondary H-bridge switches is calculated. By analyzing the working principle and soft switching characteristics of the proposed phase shift control strategy, a linear large-signal model is derived with the unified transmission power per-unit value as the control quantity. Finally, an experimental platform based on TMS320F2808 as the controller is used for verification. The results demonstrate that the simple PWM phase shift control reduces the voltage stress and current stress of the converter and significantly improves its transmission efficiency. © 2022 Power System Protection and Control Press. All rights reserved.
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页码：105 / 114
页数：9
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