A DSP digital controller design and implementation of a high power boost converter in hybrid electric vehicles

This paper presents a DSP based direct digital control (DDC) design and implementation for a high power boost converter. A dual loop voltage control is digitally implemented using DSP. The real time workshop (RTW) is used for automatic real-time code generation. A laboratory prototype of a 20 kW boost converter based on TMS320F2808 DSP is presented. The proposed controller performance is investigated using MATLAB simulation and laboratory experiments during reference voltage changes, input voltage changes, and load disturbances. Simulation and experimental results verify the efficacy of the proposed controller. In addition, the experimental results validate the effectiveness of using the RTW for automatic code generation to speed up the system implementation.