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Title: Passivity control in multilevel cascaded H-bridge converters : a variable gain approach
Authors: Rodriguez, Ezequiel
Leyva, Ramon
Farivar, Glen G.
Tafti, Hossein Dehghani
Townsend, Christopher D.
Pou, Josep
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2019
Source: 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
Abstract: 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.
ISBN: 978-1-7281-4878-6
DOI: 10.1109/IECON.2019.8927380
Rights: © 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:
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Conference Papers

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