Computationally Efficient Self-Tuning Controller for DC-DC Switch Mode Power Converters Based on Partial Update Kalman Filter

Mohamed Ahmeid, Matthew Armstrong, Maher Al-Greer, Shady Gadoue

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Abstract

In this paper, a partial update Kalman Filter (PUKF) is presented for the real-time parameter estimation of a dc-dc switch mode power converter. The proposed estimation algorithm is based on a novel combination between the classical Kalman filter (KF) and an M-Max partial adaptive filtering technique. The proposed PUKF offers a significant reduction in computational effort compared to the conventional implementation of the KF, with 50% less arithmetic operations. Furthermore, the PUKF retains comparable overall performance to the classical KF. To demonstrate an efficient and cost effective explicit self-tuning controller, the proposed estimation algorithm (PUKF) is embedded with a Bányász/Keviczky proportional, integral, derivative (PID) controller to generate a new computationally light self-tuning controller. Experimental and simulation results clearly show the superior dynamic performance of the explicit self-tuning control system compared to a conventional pole placement design based on a precalculated average model.
Original languageEnglish
Pages (from-to)-
Number of pages23
JournalIEEE Transactions on Power Electronics
Volume33
Issue number9
DOIs
Publication statusPublished - 31 Oct 2017

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