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|Title:||Hybrid modulation for dual-active-bridge bidirectional converter with extended power range for ultracapacitor application|
Dual active bridge (DAB)
|Source:||Zhou, H., Khambadkone, A.M. (2009). Hybrid modulation for dual-active-bridge bidirectional converter with extended power range for ultracapacitor application. IEEE Transactions on Industry Applications 45 (4) : 1434-1442. ScholarBank@NUS Repository. https://doi.org/10.1109/TIA.2009.2023493|
|Abstract:||In order to actively control the power flow between the load and ultracapacitor, a dual-active-bridge converter can be utilized. Conventional phase-shift modulation (PSM) has difficulties in working with a wide range of source voltage levels and load power levels. In addition, a traditional PI controller does not provide satisfactory behavior as the relation between the control variable and output voltage is nonlinear. In this paper, a hybrid modulation scheme is proposed to extend the power range of operation from 100% to 16.67% instead of 100% to 58.33% that is achieved by conventional PSM. A feedback-linearized controller is also designed to achieve a better dynamic response under various load conditions. The details of the modulation principle and controller design are given, and the experimental results verify the proposed modulation and control scheme. © 2009 IEEE.|
|Source Title:||IEEE Transactions on Industry Applications|
|Appears in Collections:||Staff Publications|
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