An Isolated Three-Port Biodirectional DC-DC Converter With Decoupled Power Flow Management

被引：596

作者：

Zhao, Chuanhong ^{[1
]}

Round, Simon D. ^{[1
]}

Kolar, Johann W. ^{[1
]}

机构：

[1] ETH, Power Elect Syst Lab, CH-8092 Zurich, Switzerland

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2008年 / 23卷 / 05期

关键词：

Bidirectional; decoupled power flow management; optimum operating point; three-port converter;

D O I：

10.1109/TPEL.2008.2002056

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An isolated three-port bidirectional dc-dc converter composed of three full-bridge cells and a high-frequency transformer is proposed in this paper. Besides the phase shift control managing the power flow between the ports, utilization of the duty cycle control for optimizing the system behavior is discussed and the control laws ensuring the minimum overall system losses are studied. Furthermore, the dynamic analysis and associated control design are presented. A control-oriented converter model is developed and the Bode plots of the control-output transfer functions are given. A control strategy with the decoupled power flow management is implemented to obtain fast dynamic response. Finally, a 1.5 kW prototype has been built to verify all theoretical considerations. The proposed topology and control is particularly relevant to multiple voltage electrical systems in hybrid electric vehicles and renewable energy generation systems.

引用

页码：2443 / 2453

页数：11

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