Total load energy supply capability and security level classification of integrated power and natural gas systems considering N-1 contingency of power system

Lu, Z; Chen, Y; Gu, Y; He, L; Zhang, J

Total load energy supply capability and security level classification of integrated power and natural gas systems considering N-1 contingency of power system

Lu, Z Chen, Y Gu, Y He, L Zhang, J

Permalink

Publisher:: Wiley
Publication Type:: Journal Article
Citation:: International Transactions on Electrical Energy Systems, 2021, 31, (5), pp. 1-25
Issue Date:: 2021-05-01

Closed Access

	Filename	Description	Size
	International Transactions on Electrical Energy Systems - 2021 - Lu - Total load energy supply capability and security.pdf		2.76 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Lu, Z
dc.contributor.author	Chen, Y
dc.contributor.author	Gu, Y
dc.contributor.author	He, L
dc.contributor.author	Zhang, J https://orcid.org/0000-0003-2616-6722
dc.date.accessioned	2022-05-30T04:36:39Z
dc.date.available	2022-05-30T04:36:39Z
dc.date.issued	2021-05-01
dc.identifier.citation	International Transactions on Electrical Energy Systems, 2021, 31, (5), pp. 1-25
dc.identifier.issn	2050-7038
dc.identifier.issn	2050-7038
dc.identifier.uri	http://hdl.handle.net/10453/157821
dc.description.abstract	The coupling between the power system and natural gas system becomes more and more intensive, so it is necessary to study the security of integrated power and natural gas systems. This paper proposes the concept of total load energy supply capability (TLESC) for integrated power and natural gas systems. Then, a nonlinear optimization model is presented to calculate this TLESC. Normal operation of the power system and natural gas system, and the N-1 contingency of the power system are considered. Piecewise linearization is used to linearize nonlinear models to obtain a uniquely effective solution. Then, the impact of contingencies on the TLESC is measured by the load change rate and the contingency load rate. A method for dividing the security level of the integrated power and natural gas systems is proposed. The N-1 check is used to judge whether the integrated power and natural gas systems are secure to operate. If the N-1 check is not satisfied, load loss rate, threshold crossing, hazard index, and so on are used to measure the insecure operation state; If the N-1 check is satisfied, security margin index, power flow-gas flow index, comprehensive margin index are used to measure the secure operation state of the system. An integrated 6-bus power system and 7-node natural gas system, an integrated 39-bus power system and 20-bus natural gas system and the modified IEEE 118-bus power system and a 40-node natural gas system are carried out to validate the effectiveness of the proposed model and security level classification method are verified by simulation examples.
dc.language	English
dc.publisher	Wiley
dc.relation.ispartof	International Transactions on Electrical Energy Systems
dc.relation.isbasedon	10.1002/2050-7038.12842
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0906 Electrical and Electronic Engineering
dc.subject.classification	Energy
dc.title	Total load energy supply capability and security level classification of integrated power and natural gas systems considering N-1 contingency of power system
dc.type	Journal Article
utslib.citation.volume	31
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	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-05-30T04:36:38Z
pubs.issue	5
pubs.publication-status	Published
pubs.volume	31
utslib.citation.issue	5

Abstract:

The coupling between the power system and natural gas system becomes more and more intensive, so it is necessary to study the security of integrated power and natural gas systems. This paper proposes the concept of total load energy supply capability (TLESC) for integrated power and natural gas systems. Then, a nonlinear optimization model is presented to calculate this TLESC. Normal operation of the power system and natural gas system, and the N-1 contingency of the power system are considered. Piecewise linearization is used to linearize nonlinear models to obtain a uniquely effective solution. Then, the impact of contingencies on the TLESC is measured by the load change rate and the contingency load rate. A method for dividing the security level of the integrated power and natural gas systems is proposed. The N-1 check is used to judge whether the integrated power and natural gas systems are secure to operate. If the N-1 check is not satisfied, load loss rate, threshold crossing, hazard index, and so on are used to measure the insecure operation state; If the N-1 check is satisfied, security margin index, power flow-gas flow index, comprehensive margin index are used to measure the secure operation state of the system. An integrated 6-bus power system and 7-node natural gas system, an integrated 39-bus power system and 20-bus natural gas system and the modified IEEE 118-bus power system and a 40-node natural gas system are carried out to validate the effectiveness of the proposed model and security level classification method are verified by simulation examples.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/157821