Decentralized hybrid switching control of multiconverter MVDC shipboard power systems

Dominik Mildt, Ryogo Kubo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Due to the presence of power electronics interfaced generation, voltage stability is a key design goal for converter control systems, such as in Medium-Voltage DC in naval vessels. In the presence of power electronic converter interfaced loads that can display high-bandwidth constant power load (CPL) behavior, the nonlinearity of the negative incremental resistance can induce instability. This paper employs a local and switched affine model for buck converters interfacing the generation units. Load behavior and system interaction are modelled via a virtual disturbance approach and included as an additional state in an augmented local Kalman filter (ALKF). Stored energy in inductor and capacitor are used to derive a Lyapunov function defining stability regions for the switching states and subsequently a switching rule ensuring quadratic stability is chosen. The simulation of an exemplary system shows how voltage stability is achieved. The controller is then further extended to avoid steady-state errors and limit the converters switching frequency.

Original languageEnglish
Title of host publicationProceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages6795-6800
Number of pages6
Volume2017-January
ISBN (Electronic)9781538611272
DOIs
Publication statusPublished - 2017 Dec 15
Event43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 - Beijing, China
Duration: 2017 Oct 292017 Nov 1

Other

Other43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
CountryChina
CityBeijing
Period17/10/2917/11/1

Fingerprint

Switching Control
Hybrid Control
Converter
Power System
Decentralized
Voltage Stability
Power Electronics
Power electronics
Voltage control
Naval vessels
Quadratic Stability
Buck Converter
Negative resistance
Stability Region
Switching frequency
Lyapunov functions
Capacitor
Kalman filters
Vessel
Lyapunov Function

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Control and Optimization
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Mildt, D., & Kubo, R. (2017). Decentralized hybrid switching control of multiconverter MVDC shipboard power systems. In Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society (Vol. 2017-January, pp. 6795-6800). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IECON.2017.8217187

Decentralized hybrid switching control of multiconverter MVDC shipboard power systems. / Mildt, Dominik; Kubo, Ryogo.

Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society. Vol. 2017-January Institute of Electrical and Electronics Engineers Inc., 2017. p. 6795-6800.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mildt, D & Kubo, R 2017, Decentralized hybrid switching control of multiconverter MVDC shipboard power systems. in Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society. vol. 2017-January, Institute of Electrical and Electronics Engineers Inc., pp. 6795-6800, 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017, Beijing, China, 17/10/29. https://doi.org/10.1109/IECON.2017.8217187
Mildt D, Kubo R. Decentralized hybrid switching control of multiconverter MVDC shipboard power systems. In Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society. Vol. 2017-January. Institute of Electrical and Electronics Engineers Inc. 2017. p. 6795-6800 https://doi.org/10.1109/IECON.2017.8217187
Mildt, Dominik ; Kubo, Ryogo. / Decentralized hybrid switching control of multiconverter MVDC shipboard power systems. Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society. Vol. 2017-January Institute of Electrical and Electronics Engineers Inc., 2017. pp. 6795-6800
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