A Family of Three-Port Half-Bridge Converters for a Stand-Alone Renewable Power System

A systematic method to generate three-port half-bridge converters (TPHBCs) interfacing a renewable source, a storage battery, and a load is proposed for a stand-alone renewable power system application. Allowing dc bias current in the transformer, the primary circuit of a half-bridge converter can f...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2011-09, Vol.26 (9), p.2697-2706
Main Authors: Wu, Hongfei, Chen, Runruo, Zhang, Junjun, Xing, Yan, Hu, Haibing, Ge, Hongjuan
Format: Article
Language:English
Subjects:
Applied sciences
Batteries
Battery
Circuits
Control
Converters
Convertors
Devices
Direct energy conversion and energy accumulation
Electric currents
Electric power
Electrical engineering. Electrical power engineering
Electrical equipment
Electrical machines
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Electronics
Exact sciences and technology
Forward-flyback converter
half-bridge converter
Load flow
Magnetic separation
Miscellaneous
Ports
Power networks and lines
Rectifiers
renewable power system three-port converter
Synchronous
Topology
Transformers and inductors
Voltage control
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Summary:A systematic method to generate three-port half-bridge converters (TPHBCs) interfacing a renewable source, a storage battery, and a load is proposed for a stand-alone renewable power system application. Allowing dc bias current in the transformer, the primary circuit of a half-bridge converter can function as a synchronous rectification buck converter, by which a power flow path can be configured between the renewable source and the battery, which is connected in parallel with one of the dividing capacitor. To make the voltage on any two of the three ports independently regulated, a postregulation and a synchronous regulation with various implementations are proposed. As a result, a family of TPHBCs with merits of simple topologies and control, reduced number of devices, and single-stage power conversion between any two of the three ports is presented. A TPHBC with a synchronous regulation is given as an example to verify the proposed approach and experimental results are also given to validate the TPHBC operation. The topology generation idea is further extended and some novel TPCs are derived for different applications.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2011.2125991