Cost-effective secondary voltage control in dc shipboard integrated power system

Shi, T; Wang, F; Zhang, S; Liu, H; Li, L

Cost-effective secondary voltage control in dc shipboard integrated power system

Shi, T Wang, F Zhang, S Liu, H Li, L

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Publisher:: Institution of Engineering and Technology (IET)
Publication Type:: Journal Article
Citation:: IET Power Electronics, 2023
Issue Date:: 2023-01-01

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Field	Value	Language
dc.contributor.author	Shi, T
dc.contributor.author	Wang, F
dc.contributor.author	Zhang, S
dc.contributor.author	Liu, H
dc.contributor.author	Li, L https://orcid.org/0000-0001-8485-2216
dc.date.accessioned	2024-02-16T03:37:23Z
dc.date.available	2024-02-16T03:37:23Z
dc.date.issued	2023-01-01
dc.identifier.citation	IET Power Electronics, 2023
dc.identifier.issn	1755-4535
dc.identifier.issn	1755-4543
dc.identifier.uri	http://hdl.handle.net/10453/175701
dc.description.abstract	Fast and dramatic voltage disturbances caused by the electric propulsion and dynamic positioning process are severe issues in the DC shipboard integrated power system (DC-SIPS). The secondary voltage control (SVC) equipped in the diesel genset (DG) and hybrid energy storage system (HESS) becomes an effective solution. However, the conventional SVC cannot distinguish the different voltage regulation characteristics between DG and HESS in a cost-effective way when allocating the voltage regulation responsibility (VRR). The cost optimization achieved by the conventional tertiary control cannot be used for the DC-SIPS due to frequent and unpredictable load fluctuations. In this paper, a cost-effective secondary voltage control is proposed to realize voltage restoration and cost minimization simultaneously. First, the voltage regulation cost model is developed considering the different voltage regulation characteristics of DG and HESS. Then, the optimization problem of VRR distribution is addressed by minimizing the total voltage regulation cost function using a quadratic programming algorithm. Moreover, the voltage regulation ability of each energy storage system is fully used with the state of charge balance. Thus, the conflict among voltage restoration, cost minimization, and SoC balance is effectively addressed. Finally, promising hardware-in-loop test results illustrate the effectiveness of the proposed method.
dc.language	en
dc.publisher	Institution of Engineering and Technology (IET)
dc.relation.ispartof	IET Power Electronics
dc.relation.isbasedon	10.1049/pel2.12607
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0906 Electrical and Electronic Engineering
dc.subject.classification	Electrical & Electronic Engineering
dc.subject.classification	4008 Electrical engineering
dc.subject.classification	4009 Electronics, sensors and digital hardware
dc.title	Cost-effective secondary voltage control in dc shipboard integrated power system
dc.type	Journal Article
utslib.for	0906 Electrical and Electronic Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	open_access	*
dc.date.updated	2024-02-16T03:37:22Z
pubs.publication-status	Published

Abstract:

Fast and dramatic voltage disturbances caused by the electric propulsion and dynamic positioning process are severe issues in the DC shipboard integrated power system (DC-SIPS). The secondary voltage control (SVC) equipped in the diesel genset (DG) and hybrid energy storage system (HESS) becomes an effective solution. However, the conventional SVC cannot distinguish the different voltage regulation characteristics between DG and HESS in a cost-effective way when allocating the voltage regulation responsibility (VRR). The cost optimization achieved by the conventional tertiary control cannot be used for the DC-SIPS due to frequent and unpredictable load fluctuations. In this paper, a cost-effective secondary voltage control is proposed to realize voltage restoration and cost minimization simultaneously. First, the voltage regulation cost model is developed considering the different voltage regulation characteristics of DG and HESS. Then, the optimization problem of VRR distribution is addressed by minimizing the total voltage regulation cost function using a quadratic programming algorithm. Moreover, the voltage regulation ability of each energy storage system is fully used with the state of charge balance. Thus, the conflict among voltage restoration, cost minimization, and SoC balance is effectively addressed. Finally, promising hardware-in-loop test results illustrate the effectiveness of the proposed method.

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http://hdl.handle.net/10453/175701