Voltage-controlled tunable capacitor based resonant power converter

Ben Guo; Suman Dwari; Shashank Priya

doi:10.1109/ECCE.2019.8912954

Voltage-controlled tunable capacitor based resonant power converter

Ben Guo, Suman Dwari, Shashank Priya

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

4 Scopus citations

Abstract

The conventional resonant converters are based on fixed passive components which are required to be operated by variable switching frequency control with limited regulation capabilities under changing operating conditions. This includes the variations of load, source, and components. The variable switching frequency operation not only increases the size of the EMI and the harmonic filters but also reduces the efficiency of a converter. To address these challenges, a fixed frequency resonant power converter based on voltage-controlled tunable capacitor is proposed in this work. In the proposed converter, the capacitance of the resonant tank is varied to control the gain of the resonant converter by changing the dc control voltage across a tunable capacitor bank. Detailed analysis and design of the proposed converter, utilizing LLC resonant tank structure, for achieving high efficiency and fixed frequency operation are presented. Experimental results are presented to validate the operation and high performances of the proposed resonant converter.

Original language	English (US)
Title of host publication	2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2164-2169
Number of pages	6
ISBN (Electronic)	9781728103952
DOIs	https://doi.org/10.1109/ECCE.2019.8912954
State	Published - Sep 2019
Externally published	Yes
Event	11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019 - Baltimore, United States Duration: Sep 29 2019 → Oct 3 2019

Publication series

Name	2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019

Conference

Conference	11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019
Country/Territory	United States
City	Baltimore
Period	9/29/19 → 10/3/19

Bibliographical note

Funding Information:
This research was developed with funding from the Defense Advanced Research Projects Agency (DARPA). The views, opinions, and/or findings expressed are those of the author(s) and should not be interpreted as representing the official views or policies of the Department of Defense or the U.S. Government, United Technologies Research Center, Virginia Polytechnic Institute and State University, and AVX Corporation.

Funding Information:
This work is funded by DARPA FAIN: W911NF-16-2-0010.

Publisher Copyright:
© 2019 IEEE.

Keywords

Active tuning
Resonant power converter
Tunable capacitor
Tunable resonant converter

Publisher link

10.1109/ECCE.2019.8912954

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Guo, B., Dwari, S., & Priya, S. (2019). Voltage-controlled tunable capacitor based resonant power converter. In 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019 (pp. 2164-2169). Article 8912954 (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2019.8912954

Voltage-controlled tunable capacitor based resonant power converter. / Guo, Ben; Dwari, Suman; Priya, Shashank.
2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 2164-2169 8912954 (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019).

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

Guo, B, Dwari, S & Priya, S 2019, Voltage-controlled tunable capacitor based resonant power converter. in 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019., 8912954, 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019, Institute of Electrical and Electronics Engineers Inc., pp. 2164-2169, 11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019, Baltimore, United States, 9/29/19. https://doi.org/10.1109/ECCE.2019.8912954

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N2 - The conventional resonant converters are based on fixed passive components which are required to be operated by variable switching frequency control with limited regulation capabilities under changing operating conditions. This includes the variations of load, source, and components. The variable switching frequency operation not only increases the size of the EMI and the harmonic filters but also reduces the efficiency of a converter. To address these challenges, a fixed frequency resonant power converter based on voltage-controlled tunable capacitor is proposed in this work. In the proposed converter, the capacitance of the resonant tank is varied to control the gain of the resonant converter by changing the dc control voltage across a tunable capacitor bank. Detailed analysis and design of the proposed converter, utilizing LLC resonant tank structure, for achieving high efficiency and fixed frequency operation are presented. Experimental results are presented to validate the operation and high performances of the proposed resonant converter.

AB - The conventional resonant converters are based on fixed passive components which are required to be operated by variable switching frequency control with limited regulation capabilities under changing operating conditions. This includes the variations of load, source, and components. The variable switching frequency operation not only increases the size of the EMI and the harmonic filters but also reduces the efficiency of a converter. To address these challenges, a fixed frequency resonant power converter based on voltage-controlled tunable capacitor is proposed in this work. In the proposed converter, the capacitance of the resonant tank is varied to control the gain of the resonant converter by changing the dc control voltage across a tunable capacitor bank. Detailed analysis and design of the proposed converter, utilizing LLC resonant tank structure, for achieving high efficiency and fixed frequency operation are presented. Experimental results are presented to validate the operation and high performances of the proposed resonant converter.

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Voltage-controlled tunable capacitor based resonant power converter

Abstract

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Keywords

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