Power Flow Control in Multi-Active-Bridge Converters: Theories and Applications
Power Flow Control in Multi-Active-Bridge Converters: Theories and Applications
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多有源桥变换器中的功率流控制：理论与应用
DOI：
10.1109/apec.2019.8722122
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Minjie Chen
中科院分区：
文献类型：
--
作者：
Yenan Chen;Ping;Haoran Li;Minjie Chen
本文研究了多有源桥功率变换器的潮流控制理论及其应用。许多新兴的应用，包括差分功率处理、智能家居中的低压电力输送、多电池电池平衡器和光伏能源系统，包括跨多个直流电压端口的复杂功率流。将多个直流电压端口与MAB转换器连接在一起减少了功率转换应力，提高了效率并增强了功率密度。从根本上说，MAB设计的优势来自于将许多具有简单功能的独立磁性组件合并为一个执行复杂功能的单个磁性组件。三种控制策略，包括相移（PS）控制，分时（TS）控制，和混合相移和分时（PSTS）控制的MAB变换器的发展，以调节电压和精确控制的功率流。一个四端口MAB转换器原型设计的低电压电力输送应用在未来的智能家居已经建成和测试，比较三种控制方法的性能，并验证所提出的架构的有效性。
This paper investigates the theories and applications of power flow control in multi-active-bridge (MAB) power converters. Many emerging applications including differential power processing, low voltage power delivery in smart homes, multi-cell battery balancers, and photovoltaic energy systems comprise sophisticated power flow across multiple dc voltage ports. Connecting many dc voltage ports together with a MAB converter reduces the power conversion stress, improves the efficiency and enhances the power density. Fundamentally, the advantages of a MAB design come from merging many standalone magnetic components with simple functions into one single magnetic component that performs sophisticated functions. Three control strategies for MAB converters, including phase-shift (PS) control, time-sharing (TS) control, and hybrid phase-shift and time-sharing (PSTS) control are developed to regulate the voltage and precisely control the power flow. A four-port MAB converter prototype designed for low voltage power delivery applications in future smart homes has been built and tested to compare the performance of the three control methods and verify the effectiveness of the proposed architecture.