article · WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS · 2025

State Variable Interactions of Dual Input SEPIC Converters

Allam Venkatesh, B. Amarendra Reddy, T. R. Jyothsna, Ch. Nayak Bhukya

Cited by 0Open access

Abstract

This article addresses the level of interactions between state variables and their eigenmodes of two-input integrated (TII) converters. Here, two-input Buck-SEPIC (TI-BS) and two-input modified Buck-SEPIC (TI-MBS) converters are considered for analysis. Small-signal models are obtained in continuous time and as well as discrete time, and eigenvalues are computed using system matrices “Aavg” and “Phi” respectively. The characteristic equations of TII converters are of fourth order and have four eigenvalues. Here, Participation Factors (PF) analysis is performed to identify the level of interaction between Converter State-Variables In Converter Eigen-Modes (CSVICEM), Converter Eigen-Modes In Converter State-Variables (CEMICSV), and Converter Eigen-Modes In Converter Output Variables (CEMICOV). The participation factor analysis helps to identify the sensitive elements that are present in the converter configuration. The simulation studies are performed for these converters considering a 36 V / 60 V to 48 V, 500 W dc-dc converter for Electric Vehicles. Here, continuous and discrete-time models are obtained, and using these models, CSVICEM, CEMICSV, and CEMICOV are computed, and experimental validation is performed through Hardware in Loop (HIL) using OPAL-RT.

Cite this paper

APA 7

Venkatesh, A., Reddy, B. A., Jyothsna, T. R., & Bhukya, C. N. (2025). State Variable Interactions of Dual Input SEPIC Converters. WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS, 207. https://doi.org/10.37394/23201.2025.24.24

MLA 9

Venkatesh, Allam, et al. “State Variable Interactions of Dual Input SEPIC Converters.” WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS, 2025, p. 207, https://doi.org/10.37394/23201.2025.24.24.

Chicago

Venkatesh, Allam, B. Amarendra Reddy, T. R. Jyothsna, and Ch. Nayak Bhukya. 2025. “State Variable Interactions of Dual Input SEPIC Converters.” WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS: 207. https://doi.org/10.37394/23201.2025.24.24.

Harvard

Venkatesh, A. et al. (2025) ‘State Variable Interactions of Dual Input SEPIC Converters’, WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS, p. 207. Available at: https://doi.org/10.37394/23201.2025.24.24.

BibTeX

@article{venkatesh2025state,
  title = {{State Variable Interactions of Dual Input SEPIC Converters}},
  author = {Venkatesh, Allam and Reddy, B. Amarendra and Jyothsna, T. R. and Bhukya, Ch. Nayak},
  journal = {WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS},
  pages = {207},
  year = {2025},
  doi = {10.37394/23201.2025.24.24}
}

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