Nonlinear Dynamics of Peak-Current-Controlled Superbuck Converter

Abstract:

Superbuck converter is a high-order converter, which has the unique advantage of the continuous input current, but increases the complexity of nonlinear phenomena of the system. This paper applies sample-data model to analyze the nonlinear dynamics of Superbuck converter with peak current control. The Jacobian matrix of the sample-data model is acquired to analyze the stability of the converter. On the other hand, the bifurcation analysis is carried out with the reference current as a bifurcation parameter based on the sample-data model. Several representative waveforms are captured from simulation, which verify the analytical results.

• Periodical: Applied Mechanics and Materials (Volume 392)
• Pages: 446-449
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.392.446
• Online since: September 2013
• Authors: Chuang Bi, Yong Xiang, Qian Zhang, Hua Lu
• Keywords: Peak Current Control, Period-Doubling Bifurcation, Stability, Superbuck Converter

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