Varying Switching Frequency Control for Current-Fed Dual-Active Bridge DC-DC Converter With Constant Flux Density Change for Transformers

被引：8

作者：

Sha, Deshang ^{[1
]}

Sun, Tengfei ^{[1
]}

Zhang, Jiankun ^{[1
]}

机构：

[1] Beijing Inst Technol, Sch Automat, Adv Power Convers Ctr, Beijing 100081, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2020年 / 35卷 / 04期

基金：

中国国家自然科学基金; 北京市自然科学基金;

关键词：

Switching frequency; Zero voltage switching; Control systems; Bridge circuits; DC-DC power converters; Circuit faults; Capacitors; Bidirectional dc-dc converter; PWM control; varying switching frequency; zero voltage switching (ZVS); PWM CONTROL; POWER; STRATEGY;

D O I：

10.1109/TPEL.2019.2938779

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

For current-fed dual-active bridge bidirectional dc-dc converters, a PWM plus dual phase shifted (PPDPS) control with varying switching frequency was proposed. To prevent magnetic core saturation, the flux density change of the transformer is kept constant in spite of the battery voltage and the load. The detailed loss breakdown was implemented by comparing with the conventional PPDPS with fixed switching frequency. With the proposed control, zero voltage switching performance is better with lower battery voltage and the conversion efficiency can be improved compared with fixed switching frequency control. The closed loop control implementation was given in detail. Both the steady state and dynamic response with different battery voltages are good. The effectiveness of the proposed control is verified by the experimental results of a 2.4-kW laboratory prototype.

引用

页码：3766 / 3777

页数：12

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