Study on Sliding Mode Control in Bidirectional DC/DC Converter Based on State Space Averaging Method

Abstract:

Bidirectional DC/DC converter is used for the battery charging and discharging. The sliding mode controller based on state space averaging algorithm is used for controlling bidirectional DC/DC converter. Two kinds of working modes, buck mode and boost mode, have been analyzed and three kinds of working states which are consisted by two working modes have been deeply discussed, and the automatic switch logic diagram when battery charging and discharging through the bidirectional DC/DC converter has been presented. Situation of system based on S1, S2 conducting alternately has been studied, and the simulations were also presented. According to the results, the characteristics of good stability and transient can be confirmed.

• Periodical: Applied Mechanics and Materials (Volume 678)
• Pages: 399-405
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.678.399
• Online since: October 2014
• Authors: Yan Mei*
• Keywords: Bidirectional DC/DC Converter, Sliding Mode Control, State Space Averaging Method, Switching Frequency

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