Robust flat filtering DSP based control of the boost converter

The article deals with the design and implementation of a flat filter tracking digital controller for a boost DC-DC power converter. A highly perturbed switched boost converter circuit is shown to be efficiently controlled, in a trajectory tracking task for its non-minimum phase output, by means of...

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Bibliographic Details
Published in:Control theory and technology 2016-08, Vol.14 (3), p.224-236
Main Author: Hebertt SIRA-RAMIREZ Arturo HERNANDEZ-MENDEZ Jesus LINARES-FLORES Alberto LUVIANO-JUAREZ
Format: Article
Language:English
Subjects:
Complexity
Computational Intelligence
Control
Control and Systems Theory
Digital signal processing
Engineering
Mechatronics
Optimization
Robotics
Systems Theory
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Summary:The article deals with the design and implementation of a flat filter tracking digital controller for a boost DC-DC power converter. A highly perturbed switched boost converter circuit is shown to be efficiently controlled, in a trajectory tracking task for its non-minimum phase output, by means of a suitable linear filter, here addressed as a flat filter. Flat filtering is a natural robust version of generalized proportional integral control （GPIC） by which the effects of arbitrary time varying exogenous disturbances, unknown endogenous nonlinearities and un-modeled dynamics can be jointly attenuated in a conceptually similar fashion to observer-based active disturbance rejection control （ADRC） and algebraic identification based model free control （MFC） but： a） without using extended state observers and b） respecting the original system order in a time-varying simplified model while avoiding algebraic estimation techniques. The proposed control technique based on the TMS320F28335 digital signal processor chip is tested by means of realistic simulations and experimental setup.
ISSN:2095-6983
2198-0942
DOI:10.1007/s11768-016-6025-6