Research on Control Strategy of Triple Bi-Directional DC/DC Converter

Abstract:

The bidirectional DC/DC converter is an important part for the power energy storage system,this paper adopts a triple bidirectional DC/DC converter in view of the features on super capacitor energy storage wide output voltage range. Establish the switch average model of bidirectional DC/DC equivalent model, put forward a double close-loop control strategy in view of charge and discharge conditions of the super capacitor, the triple bidirectional DC/DC simulation model based on super capacitor is built. The simulation results show that, the triple bidirectional DC/DC converter can effectively reduce the inductive current and current stress demand of the switch devices, improve the converter power grade. The control strategy can effectively control the super capacitor charge and discharge and it is suitable for application in the power energy storage system.

• Periodical: Applied Mechanics and Materials (Volumes 457-458)
• Pages: 806-810
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.457-458.806
• Online since: October 2013
• Authors: Ming Xuan Chen, Yong Feng Ren, He Bu, Zhi Qiang Gao, Shao Hua Xu
• Keywords: Bi-Directional DC/DC Converter, Energy Storage, Super-Capacitor (SC)

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