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A Fluxgate-Based Current Sensor for DC Bias Elimination in a Dual Active Bridge Converter

Guanqun Qiu,Li Ran,Hao Feng,Huaping Jiang,Teng Long,Andrew J. Forsyth,WeiHua Shao, Xu Hou

IEEE Transactions on Power Electronics（2022）

Cited 4|Views12
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Abstract
A concern with the isolation transformer in a dual active bridge (DAB) dc–dc converter is the dc bias in magnetization. This article proposes a fluxgate-based current sensor to measure the dc component mixed with a large, high-frequency ac current. Compared with a commercial Hall effect current sensor, the proposed sensor significantly reduces measurement error. This article presents the working p...
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Key words
Current measurement,Windings,Saturation magnetization,Magnetic flux,Transformer cores,Magnetic separation,Current transformers
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