Seok-Kyoon Kim, Sun Lim, and Kyo-Beum Lee, "Nonlinear Damping Output-Feedback Voltage Control for DC/DC Converters via Model-Independent Voltage Derivative Observer," IEEE Transactions on Industrial Electronics, vol. 70, no. 8, pp. 7924-7933, Aug. 2023. - > Paper

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International Journals Seok-Kyoon Kim, Sun Lim, and Kyo-Beum Lee, "Nonlinear Damping Output-Feedback Voltage Control for DC/DC Converters via Model-Independent Voltage Derivative Observer," IEEE Transactions on Industrial Electronics, vol. 70, no. 8, pp. 7924-7933, Aug. 2023. -SCI

2023

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This paper proposes an output-feedback solution for DC/DC converter applications that considers modelplant mismatches and load variations as

constraints in industrial applications. The following two major contributions of this study are particularly advantageous: (a) nonlinear damping terms to inject the critical damping performance into the closed-loop system with the cooperation of the feedback gain structure depending on the damping 

coefficients, and (b) estimation of the output voltage derivative by the model-independent observer with only one simple closed-loop eigenvalue and 

current feedback removal. The experimental study highlights the practical merit of the proposed solution by demonstrating the critical damping 

performance that suppresses the peak current level using a 3-kW bidirectional DC/DC converter. 

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