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考虑功率损耗的双有源桥式DC变换器的大、小信号平均值建模_英版

消耗积分:1 | 格式:pdf | 大小:3282KB | 2016-10-05

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Average-value modeling (AVM) provides an efficient way to study power electronic systems in large- and small-signal senses. This paper presents a new reduced-order AVM for dualactive-bridge (DAB) DC–DC converters. The proposed model considers the conduction and transformer power losses as well as the input/output filters, which may be very useful for system-level studies. Based on the large-signal AVM, the small-signal model and the control-to-output transfer function are also derived. The proposed AVM is compared with the full-order generalized average model and the detailed model in predicting large-signal transients and small-signal analysis in the frequency domain. The experimental results confirm that the proposed model yields a high accuracy which represents an improvement over other existing models.
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