This paper presents a design optimization procedure for high frequency transformer (HFT) employed in bidirectional dual active bridge (DAB) isolated DC-DC converter. It is shown that leakage inductance, phase-shifted angle, skin and proximity effects have to be taken into account together with the HFT voltage-ampere rating to minimize total losses. It is also demonstrated that the leakage inductance required for zero voltage switching operation can be realized under the proposed design procedure without employing extra inductor. The proposed design methodology is experimentally validated by measurements on a prototype HFT.ud
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机译:本文提出了双向双有源桥(DAB)隔离式DC-DC转换器中使用的高频变压器(HFT)的设计优化程序。结果表明,必须将漏感,相移角,趋肤效应和邻近效应与HFT电压-安培额定值一起考虑在内,以使总损耗最小。还证明了在建议的设计程序下无需使用额外的电感器就可以实现零电压开关操作所需的漏感。通过对原型HFT进行测量,实验验证了所提出的设计方法。 ud
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