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Pseudo-Dynamic Network Modeling for PMU-Based State Estimation of Hybrid AC/DC Grids
KTH, School of Electrical Engineering and Computer Science (EECS), Electric Power and Energy Systems.
2018 (English)In: IEEE Access, E-ISSN 2169-3536, Vol. 6, p. 4006-4016Article in journal (Refereed) Published
Abstract [en]

This paper presents a PMU-based state estimation (SE) algorithm that uses a pseudo-dynamic network modeling approach. The pseudo-dynamic network model combines different equations with static network equations. Then it applies the weighted least squares algorithm to solve an over-determined least squares estimation problem. The proposed method can improve SE accuracy during both steady state and transient conditions without increasing the computational burden. In addition, the proposed modeling approach is applied to networks containing both a STATCOM and a voltage source converter-HVdc to demonstrate how to develop and apply a pseudo-dynamic SE model. Case studies aim to illustrate and verify the performance of the proposed method under steady state and transient conditions.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2018. Vol. 6, p. 4006-4016
Keywords [en]
Pseudo-dynamic, PMU, state estimation, STATCOM, VSC-HVDC
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-224710DOI: 10.1109/ACCESS.2017.2777185ISI: 000426577000001Scopus ID: 2-s2.0-85035795546OAI: oai:DiVA.org:kth-224710DiVA, id: diva2:1193106
Funder
SweGRIDS - Swedish Centre for Smart Grids and Energy StorageSwedish Energy Agency, EEC-1041877
Note

QC 20180326

Available from: 2018-03-26 Created: 2018-03-26 Last updated: 2018-03-26Bibliographically approved

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  • de-DE
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  • nn-NB
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  • Other locale
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Output format
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