Ac-ac dual active bridge converter for solid state transformer
Ac-ac dual active bridge converter for solid state transformer
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用于固态变压器的交流-交流双有源桥式转换器
DOI：
10.1109/ecce.2009.5316507
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
J. Kimball
中科院分区：
文献类型：
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作者：
Hengsi Qin;J. Kimball
本文研究了一种交-交双有源桥式变换器在固态变压器中的应用。所提出的变换器拓扑结构由两个有源h桥和一个高频变压器组成。四象限开关单元用于保证双向功率流。直接交流-交流转换的优点包括更少的功率转换级和最小的无源元件。该交-交双有源桥式变换器采用移相调制控制。描述了两个潮流方向的工作模式，并分析了零电压开关判据。给出了一个设计实例。仿真结果验证了理论分析的正确性。
This work investigates the application of an ac-ac dual active bridge converter for solid state transformer. The proposed converter topology consists of two active H-bridges and one high frequency transformer. Four-quadrant switch cells are used to ensure bi-directional power flow. The advantages of direct ac-ac conversion include fewer power conversion stages and minimized passive components. The ac-ac dual active bridge converter is controlled with phase shift modulation. Operating modes for both power flow directions are described and zero-voltage switching criteria are analyzed. One design example is presented. Simulation results verify the theoretical analysis.