基于开关瞬态波形提取高频隔离变压器漏感参数

doi:10.19595/j.cnki.1000-6753.tces.170631

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Abstract The high frequency transformer (HFT) in dual-active-bridge (DAB) DC-DC converter plays a crucial role in energy router, which bears the functions of galvanic isolation, voltage conversion and bi-directional power flow capability. It is very important to extract the leakage inductance of HFT accurately. However, the results measured by traditional transformer tests fail to match the actual working waveforms of HFT in DAB. Therefore, this paper proposes a novel leakage inductance extraction method based on the phase shift control of DAB. With the method, the experiments under different conditions are implemented on a DAB platform to extract the HFT leakage inductance. The experimental results have verified the proposed method. In addition, the impacts of working frequency, input voltage and phase shift ratio of DAB on the HFT leakage inductance are studied.

Key words： Dual-active-bridge DC-DC converter, high frequency transformer (HFT), phase shift control, working frequency

Received: 30 April 2017 Published: 01 August 2017

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TM46

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	Articles by authors
	Yuan Liqiang
	Gu Qing
	Li Jing
	Sun Jianning
	Zhang Chunpeng

Cite this article:

Yuan Liqiang,Gu Qing,Li Jing等. Leakage Inductance Extraction of High Frequency Isolation Transformer Based on Switching Transient Waveform[J]. Transactions of China Electrotechnical Society, 2017, 32(14): 8-16.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.170631 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I14/8

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