Demystifying Capacitor Voltages and Inductor Currents in Hybrid Converters

Ratul Das; Janko Celikovic; Siamak Abedinpour; Mark Mercer; Dragan Maksimovic; Hanh Phuc Le

doi:10.1109/COMPEL.2019.8769722

Demystifying Capacitor Voltages and Inductor Currents in Hybrid Converters

Ratul Das, Janko Celikovic, Siamak Abedinpour, Mark Mercer, Dragan Maksimovic, Hanh Phuc Le

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

12 Scopus citations

Abstract

This paper presents a modeling method to accurately predict DC and ripple values of flying capacitor voltages and inductor currents in hybrid converters by recognizing a key relationship between median and average values of these state variables. The method is demonstrated for the Dual-Phase Multi-Inductor Hybrid (DP-MIH) converter and 3-Level Buck converter. Analytical details and intuitive explanations are presented for the well-known balancing problem of flying capacitor voltages and inductor current fluctuations in hybrid converters. Simulation results for the converters at different operating conditions are provided to verify the method and analytical results.

Original language	English (US)
Title of host publication	2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728118420
DOIs	https://doi.org/10.1109/COMPEL.2019.8769722
State	Published - Jun 2019
Externally published	Yes
Event	20th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2019 - Toronto, Canada Duration: Jun 17 2019 → Jun 20 2019

Publication series

Name	2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019

Conference

Conference	20th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2019
Country/Territory	Canada
City	Toronto
Period	6/17/19 → 6/20/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

Keywords

balancing
DP-MIH converter
flying capacitor voltage
Hybrid converter
inductor current
series capacitor buck converter
three level buck converter

Publisher link

10.1109/COMPEL.2019.8769722

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Das, R., Celikovic, J., Abedinpour, S., Mercer, M., Maksimovic, D., & Le, H. P. (2019). Demystifying Capacitor Voltages and Inductor Currents in Hybrid Converters. In 2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019 Article 8769722 (2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/COMPEL.2019.8769722

Demystifying Capacitor Voltages and Inductor Currents in Hybrid Converters. / Das, Ratul; Celikovic, Janko; Abedinpour, Siamak et al.
2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019. Institute of Electrical and Electronics Engineers Inc., 2019. 8769722 (2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Das, R, Celikovic, J, Abedinpour, S, Mercer, M, Maksimovic, D & Le, HP 2019, Demystifying Capacitor Voltages and Inductor Currents in Hybrid Converters. in 2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019., 8769722, 2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019, Institute of Electrical and Electronics Engineers Inc., 20th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2019, Toronto, Canada, 6/17/19. https://doi.org/10.1109/COMPEL.2019.8769722

Das R, Celikovic J, Abedinpour S, Mercer M, Maksimovic D, Le HP. Demystifying Capacitor Voltages and Inductor Currents in Hybrid Converters. In 2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019. Institute of Electrical and Electronics Engineers Inc. 2019. 8769722. (2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019). doi: 10.1109/COMPEL.2019.8769722

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title = "Demystifying Capacitor Voltages and Inductor Currents in Hybrid Converters",

abstract = "This paper presents a modeling method to accurately predict DC and ripple values of flying capacitor voltages and inductor currents in hybrid converters by recognizing a key relationship between median and average values of these state variables. The method is demonstrated for the Dual-Phase Multi-Inductor Hybrid (DP-MIH) converter and 3-Level Buck converter. Analytical details and intuitive explanations are presented for the well-known balancing problem of flying capacitor voltages and inductor current fluctuations in hybrid converters. Simulation results for the converters at different operating conditions are provided to verify the method and analytical results.",

keywords = "balancing, DP-MIH converter, flying capacitor voltage, Hybrid converter, inductor current, series capacitor buck converter, three level buck converter",

author = "Ratul Das and Janko Celikovic and Siamak Abedinpour and Mark Mercer and Dragan Maksimovic and Le, {Hanh Phuc}",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 20th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2019 ; Conference date: 17-06-2019 Through 20-06-2019",

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AU - Maksimovic, Dragan

AU - Le, Hanh Phuc

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AB - This paper presents a modeling method to accurately predict DC and ripple values of flying capacitor voltages and inductor currents in hybrid converters by recognizing a key relationship between median and average values of these state variables. The method is demonstrated for the Dual-Phase Multi-Inductor Hybrid (DP-MIH) converter and 3-Level Buck converter. Analytical details and intuitive explanations are presented for the well-known balancing problem of flying capacitor voltages and inductor current fluctuations in hybrid converters. Simulation results for the converters at different operating conditions are provided to verify the method and analytical results.

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KW - flying capacitor voltage

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KW - inductor current

KW - series capacitor buck converter

KW - three level buck converter

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Demystifying Capacitor Voltages and Inductor Currents in Hybrid Converters

Abstract

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Bibliographical note

Keywords

Publisher link

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