Passivity control in multilevel cascaded H-bridge converters : a variable gain approach

This paper proposes a multi-input linear time-variant control law based on the incremental passivity theory for cascaded H-bridge (CHB) low-capacitance static compensators (LC-StatComs). The proposed control law guarantees global asymptotic stability of the system and controls the capacitor voltages...

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Main Authors: Rodriguez, Ezequiel, Leyva, Ramon, Farivar, Glen G., Tafti, Hossein Dehghani, Townsend, Christopher D., Pou, Josep
Other Authors: School of Electrical and Electronic Engineering
Format: Conference or Workshop Item
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/136985
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1369852020-02-10T06:27:42Z Passivity control in multilevel cascaded H-bridge converters : a variable gain approach Rodriguez, Ezequiel Leyva, Ramon Farivar, Glen G. Tafti, Hossein Dehghani Townsend, Christopher D. Pou, Josep School of Electrical and Electronic Engineering IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society Engineering::Electrical and electronic engineering Power Converter Voltage Control This paper proposes a multi-input linear time-variant control law based on the incremental passivity theory for cascaded H-bridge (CHB) low-capacitance static compensators (LC-StatComs). The proposed control law guarantees global asymptotic stability of the system and controls the capacitor voltages and inductor current without assuming fast dynamics in the current and slow dynamics in voltages. This is particularly important for LC-StatCom applications as the control of the inductor current and capacitor voltages are inherently coupled due to the reduced capacitance. After introducing the incremental model of the converter, a passivity-based control that ensures the global stability is derived. Simulation results on a seven-level 1-kVA CHB LC-StatCom are shown to corroborate its excellent performance in steady-state and during transients. Accepted version 2020-02-10T06:27:42Z 2020-02-10T06:27:42Z 2019 Conference Paper Rodriguez, E., Leyva, R., Farivar, G. G., Tafti, H. D., Townsend, C. D., & Pou, J. (2019). Passivity control in multilevel cascaded H-bridge converters : a variable gain approach. IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society. doi:10.1109/IECON.2019.8927380 978-1-7281-4878-6 https://hdl.handle.net/10356/136985 10.1109/IECON.2019.8927380 3565 3570 en © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: https://doi.org/10.1109/IECON.2019.8927380 application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Power Converter
Voltage Control
spellingShingle Engineering::Electrical and electronic engineering
Power Converter
Voltage Control
Rodriguez, Ezequiel
Leyva, Ramon
Farivar, Glen G.
Tafti, Hossein Dehghani
Townsend, Christopher D.
Pou, Josep
Passivity control in multilevel cascaded H-bridge converters : a variable gain approach
description This paper proposes a multi-input linear time-variant control law based on the incremental passivity theory for cascaded H-bridge (CHB) low-capacitance static compensators (LC-StatComs). The proposed control law guarantees global asymptotic stability of the system and controls the capacitor voltages and inductor current without assuming fast dynamics in the current and slow dynamics in voltages. This is particularly important for LC-StatCom applications as the control of the inductor current and capacitor voltages are inherently coupled due to the reduced capacitance. After introducing the incremental model of the converter, a passivity-based control that ensures the global stability is derived. Simulation results on a seven-level 1-kVA CHB LC-StatCom are shown to corroborate its excellent performance in steady-state and during transients.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Rodriguez, Ezequiel
Leyva, Ramon
Farivar, Glen G.
Tafti, Hossein Dehghani
Townsend, Christopher D.
Pou, Josep
format Conference or Workshop Item
author Rodriguez, Ezequiel
Leyva, Ramon
Farivar, Glen G.
Tafti, Hossein Dehghani
Townsend, Christopher D.
Pou, Josep
author_sort Rodriguez, Ezequiel
title Passivity control in multilevel cascaded H-bridge converters : a variable gain approach
title_short Passivity control in multilevel cascaded H-bridge converters : a variable gain approach
title_full Passivity control in multilevel cascaded H-bridge converters : a variable gain approach
title_fullStr Passivity control in multilevel cascaded H-bridge converters : a variable gain approach
title_full_unstemmed Passivity control in multilevel cascaded H-bridge converters : a variable gain approach
title_sort passivity control in multilevel cascaded h-bridge converters : a variable gain approach
publishDate 2020
url https://hdl.handle.net/10356/136985
_version_ 1681049493610430464