Browsing by Author "Obara, Hidemine"

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    Design for nonlinear current reference deadbeat control for boost converter
    (2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia), 2017-07) Mushi, Aviti; Nagai, Sakahisa; Obara, Hidemine; Kawamura, Atsuo
    This paper describes a design for fast and robust nonlinear deadbeat control for boost DC–DC converters. Nonlinear current reference deadbeat control is derived based on nonlinear state equation of the converter. Load disturbance compensation is implemented thus forming a new robust nonlinear controller. Both experiments and simulations of boost converter with input 12 V, output 20 V, load 4 Ω and 100 kHz sampling frequency, confirmed the voltage command tracking capability 266 μs settling time, and also disturbance rejection 1.20 ms recovery time. The method is applicable to boost converters of various applications.
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    Fast and Robust Nonlinear Deadbeat Current Control for Boost Converter
    (Institute of Electrical Engineers of Japan, 2017-09) Mushi, Aviti; Nagai, Sakahisa; Obara, Hidemine; Kawamura, Atsuo
    This paper proposes a fast and robust nonlinear deadbeat control for boost DC–DC converters. First, the nonlinearstate equation is derived, and second a nonlinear current reference deadbeat control is proposed. Third, a new nonlin-ear controller to implement the load disturbance compensation is proposed. After the simulations and verification byexperiments, it was confirmed that under the conditions of an input voltage of 12 V, an output voltage of 20 V, a loadresistance of 4Ωand a sampling frequency of 100 kHz, the voltage command tracking capability of a settling time of280μs was achieved, and an output voltage recovery time of 1.46 ms was achieved for a sudden load change.