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Article: Granular Load-side Frequency Control With Electric Spring Aggregators And Leader-follower Consensus

TitleGranular Load-side Frequency Control With Electric Spring Aggregators And Leader-follower Consensus
Authors
Issue Date2019
PublisherThe Institution of Engineering and Technology. The Journal's web site is located at http://www.ietdl.org/IP-GTD
Citation
IET Generation, Transmission and Distribution, 2019, v. 13 n. 9, p. 1700-1708 How to Cite?
AbstractTo utilise load-side control for frequency regulation in transmission networks, the designed control schemes need to be granulated down to the subtransmission level as only aggregate loads are used on the transmission level. Moreover, due to a higher R/X ratio in subtransmission networks, the active power changes caused by frequency control will influence bus voltages. To achieve the required active power response and regulate bus voltages, a control scheme is proposed for subtransmission networks by adopting electric spring (ES) aggregators consisting of ESs and non-critical loads. To implement the dual goals, the ES voltage of each ES aggregator is decoupled into d and q components. A distributed leader-following consensus algorithm is adopted for ES aggregators to control its active power consumption by sharing information with neighbouring aggregators. The d component of the ES voltage is adjusted accordingly to provide the required active power cooperatively. To avoid the consequent voltage variation, decentralised proportional–integral (PI) control is adopted for ES aggregators to adjust the q component of the ES voltage accordingly. Simulation results show that ES aggregators manage to achieve the required coordinated active power response to regulate frequency and keep bus voltages within the acceptable region under the proposed control method. © The Institution of Engineering and Technology 2018.
Persistent Identifierhttp://hdl.handle.net/10722/273876
ISSN
2019 Impact Factor: 2.862
2015 SCImago Journal Rankings: 1.332
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhang, CC-
dc.contributor.authorLiu, T-
dc.contributor.authorYan, S-
dc.contributor.authorHill, DJ-
dc.date.accessioned2019-08-18T14:50:25Z-
dc.date.available2019-08-18T14:50:25Z-
dc.date.issued2019-
dc.identifier.citationIET Generation, Transmission and Distribution, 2019, v. 13 n. 9, p. 1700-1708-
dc.identifier.issn1751-8687-
dc.identifier.urihttp://hdl.handle.net/10722/273876-
dc.description.abstractTo utilise load-side control for frequency regulation in transmission networks, the designed control schemes need to be granulated down to the subtransmission level as only aggregate loads are used on the transmission level. Moreover, due to a higher R/X ratio in subtransmission networks, the active power changes caused by frequency control will influence bus voltages. To achieve the required active power response and regulate bus voltages, a control scheme is proposed for subtransmission networks by adopting electric spring (ES) aggregators consisting of ESs and non-critical loads. To implement the dual goals, the ES voltage of each ES aggregator is decoupled into d and q components. A distributed leader-following consensus algorithm is adopted for ES aggregators to control its active power consumption by sharing information with neighbouring aggregators. The d component of the ES voltage is adjusted accordingly to provide the required active power cooperatively. To avoid the consequent voltage variation, decentralised proportional–integral (PI) control is adopted for ES aggregators to adjust the q component of the ES voltage accordingly. Simulation results show that ES aggregators manage to achieve the required coordinated active power response to regulate frequency and keep bus voltages within the acceptable region under the proposed control method. © The Institution of Engineering and Technology 2018.-
dc.languageeng-
dc.publisherThe Institution of Engineering and Technology. The Journal's web site is located at http://www.ietdl.org/IP-GTD-
dc.relation.ispartofIET Generation, Transmission and Distribution-
dc.rights[Pre-print to be removed on publication] “This paper is a postprint of a paper submitted to and accepted for publication in [journal] and is subject to IET copyright. The copy of record is available at IET Digital Library [link using doi]”-
dc.titleGranular Load-side Frequency Control With Electric Spring Aggregators And Leader-follower Consensus-
dc.typeArticle-
dc.identifier.emailLiu, T: taoliu@eee.hku.hk-
dc.identifier.emailHill, DJ: dhill@eee.hku.hk-
dc.identifier.authorityLiu, T=rp02045-
dc.identifier.authorityHill, DJ=rp01669-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1049/iet-gtd.2018.6381-
dc.identifier.scopuseid_2-s2.0-85066756748-
dc.identifier.hkuros302182-
dc.identifier.volume13-
dc.identifier.issue9-
dc.identifier.spage1700-
dc.identifier.epage1708-
dc.identifier.isiWOS:000470680700023-
dc.publisher.placeUnited Kingdom-

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