An MPC Reference Governor Approach for Enhancing the Performance of Precompensated Boost DC–DC Converters

Christos Yfoulis
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Christos Yfoulis: Department of Automation Engineering, Alexander Technological Educational Institute (ATEI) of Thessaloniki, Sindos 57400, Greece

Energies, 2019, vol. 12, issue 3, 1-18

Abstract: This article addresses the problem of enhancing the performance of boost DC–DC converters that are already compensated either in voltage-mode by a common proportional–integral–derivative (PID, Type III) primary controller or in current-mode with a two-loop PI control law. Improved performance may be obtained with the addition of a secondary controller/prefilter in the form of a reference governor. This complementary scheme adjusts the imposed voltage reference input signal dynamically and can be designed in an optimal fashion via the model predictive control (MPC) methodology. Our evaluation with numerical simulation in MATLAB suggests that this two-level controller can effectively enhance the performance of a DC–DC boost converter in a wide operating range without imposing extra requirements or limitations. A simple linear MPC design in explicit form is employed in this approach, which is computationally tractable for digital microprocessor implementation. This work paves the way for future research involving reference governor ideas in the area of bilinear power electronic converters.

Keywords: boost DC–DC converters; PID Type III voltage-mode compensation; current-mode; two-loop PI control; reference governor; model predictive control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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