Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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DSP Based Control of Interleaved Boost Converter

  • Sudhakarababu C. (Dept. of Electrical Engineering, Indian Institute of Technology Delhi) ;
  • Veerachary Mummadi (Dept. of Electrical Engineering, Indian Institute of Technology Delhi)
  • Published : 2005.07.01
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Abstract

In this paper a DSP based control scheme for the interleaved boost converter is presented. The mathematical model for the interleaved boost converter operating in a continuous inductor current mode is developed. A state-space averaging technique is used for modeling the converter system. A fixed frequency sliding mode controller is designed to ensure current distribution between the two converter modules and to achieve the load voltage regulation simultaneously. Necessary and sufficient conditions, using variable structure theory, are derived for the sliding mode to exist. The range of sliding mode controller coefficients is also determined. The designed controller capability, load distribution among the individual boost cells and load voltage regulation against source and load disturbances, are demonstrated through PSIM simulation results. A real-time controller based on ADMC401 DSP is developed. Experimental results are provided to validate the proposed control scheme.

Keywords

References

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