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A DSP-Based Dual Loop Digital Controller Design and Implementation of a High Power Boost Converter for Hybrid Electric Vehicles Applications

  • Ellabban, Omar ;
  • Mierlo, Joeri Van ;
  • Lataire, Philippe
  • Received : 2010.04.12
  • Accepted : 2011.01.18
  • Published : 2011.03.20

Abstract

This paper presents a DSP based direct digital control design and implementation for a high power boost converter. A single loop and dual loop voltage control are digitally implemented and compared. The real time workshop (RTW) is used for automatic real-time code generation. Experimental results of a 20 kW boost converter based on the TMS320F2808 DSP during reference voltage changes, input voltage changes, and load disturbances are presented. The results show that the dual loop control achieves better steady state and transient performance than the single loop control. In addition, the experimental results validate the effectiveness of using the RTW for automatic code generation to speed up the system implementation.

Keywords

Boost converter;digital signal processor (DSP);direct digital control;real time workshop (RTW)

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