Passivity Control in Multilevel Cascaded H-Bridge Converters: A Variable Gain Approach

Ezequiel Rodriguez; Ramon Leyva; Glen G. Farivar; Hossein Dehghani Tafti; Christopher D. Townsend; Josep Pou

doi:10.1109/IECON.2019.8927380

Passivity Control in Multilevel Cascaded H-Bridge Converters: A Variable Gain Approach

Ezequiel Rodriguez, Ramon Leyva, Glen G. Farivar, Hossein Dehghani Tafti, Christopher D. Townsend, Josep Pou

Rolls-Royce@NTU Corporate Lab

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

1 Citation (Scopus)

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.

Original language	English
Title of host publication	Proceedings
Subtitle of host publication	IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society
Publisher	IEEE Computer Society
Pages	3565-3570
Number of pages	6
ISBN (Electronic)	9781728148786
DOIs	https://doi.org/10.1109/IECON.2019.8927380
Publication status	Published - Oct 2019
Event	45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019 - Lisbon, Portugal Duration: Oct 14 2019 → Oct 17 2019

Publication series

Name	IECON Proceedings (Industrial Electronics Conference)
Volume	2019-October

Conference

Conference	45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019
Country/Territory	Portugal
City	Lisbon
Period	10/14/19 → 10/17/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

ASJC Scopus Subject Areas

Control and Systems Engineering
Electrical and Electronic Engineering

Keywords

Bilinear system control
cascaded H-bridge (CHB)
incremental passivity
multi-input global tracking
multilevel converter
static synchronous compensator (STATCOM)

Access to Document

10.1109/IECON.2019.8927380

Cite this

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. In Proceedings: IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society (pp. 3565-3570). Article 8927380 (IECON Proceedings (Industrial Electronics Conference); Vol. 2019-October). IEEE Computer Society. https://doi.org/10.1109/IECON.2019.8927380

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title = "Passivity Control in Multilevel Cascaded H-Bridge Converters: A Variable Gain Approach",

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.",

keywords = "Bilinear system control, cascaded H-bridge (CHB), incremental passivity, multi-input global tracking, multilevel converter, static synchronous compensator (STATCOM)",

author = "Ezequiel Rodriguez and Ramon Leyva and Farivar, {Glen G.} and Tafti, {Hossein Dehghani} and Townsend, {Christopher D.} and Josep Pou",

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Rodriguez, E, Leyva, R, Farivar, GG, Tafti, HD, Townsend, CD & Pou, J 2019, Passivity Control in Multilevel Cascaded H-Bridge Converters: A Variable Gain Approach. in Proceedings: IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society., 8927380, IECON Proceedings (Industrial Electronics Conference), vol. 2019-October, IEEE Computer Society, pp. 3565-3570, 45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019, Lisbon, Portugal, 10/14/19. https://doi.org/10.1109/IECON.2019.8927380

Passivity Control in Multilevel Cascaded H-Bridge Converters: A Variable Gain Approach. / Rodriguez, Ezequiel; Leyva, Ramon; Farivar, Glen G. et al.
Proceedings: IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society, 2019. p. 3565-3570 8927380 (IECON Proceedings (Industrial Electronics Conference); Vol. 2019-October).

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

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T2 - 45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019

AU - Rodriguez, Ezequiel

AU - Leyva, Ramon

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AU - Tafti, Hossein Dehghani

AU - Townsend, Christopher D.

AU - Pou, Josep

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N2 - 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.

AB - 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.

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Rodriguez E, Leyva R, Farivar GG, Tafti HD, Townsend CD, Pou J. Passivity Control in Multilevel Cascaded H-Bridge Converters: A Variable Gain Approach. In Proceedings: IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society. 2019. p. 3565-3570. 8927380. (IECON Proceedings (Industrial Electronics Conference)). doi: 10.1109/IECON.2019.8927380

Passivity Control in Multilevel Cascaded H-Bridge Converters: A Variable Gain Approach

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus Subject Areas

Keywords

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