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Article: Multi-Area Dynamic State Estimation with PMU Measurements by an Equality Constrained Extended Kalman Filter

TitleMulti-Area Dynamic State Estimation with PMU Measurements by an Equality Constrained Extended Kalman Filter
Authors
Issue Date2016
Citation
IEEE Transactions on Smart Grid, 2016 How to Cite?
AbstractTo achieve higher accuracy of estimated dynamic states, PMU measurements of buses in a network can be used for dynamic state estimation (DSE). However, it is difficult to coordinate the states of boundary buses in different areas when performing multi-area DSE. By using PMU measurements of buses in the network, this paper proposes an extended Kalman filter (EKF) based method with equality constraints to conduct multi-area DSE. First, a corrective strategy is proposed to estimate a corrective internal voltage (CIV) and a corrective rotor angle (CRA) of each generator with all PMUs’ measurements. The proposed corrective strategy can also ensure the consistency of the boundary buses in the multi-areas. Then, the CIV and the CRA are used to establish equality constraints for updating the dynamic states with the PMU measurements. An IEEE 30-bus system and an IEEE 118-bus system are used to validate the proposed method, with the results showing the feasibility and accuracy of the proposed method.
Persistent Identifierhttp://hdl.handle.net/10722/229185
ISSN
2015 Impact Factor: 3.19
2015 SCImago Journal Rankings: 4.784

 

DC FieldValueLanguage
dc.contributor.authorWang, C-
dc.contributor.authorQin, Z-
dc.contributor.authorHou, Y-
dc.contributor.authorYan, J-
dc.date.accessioned2016-08-23T14:09:31Z-
dc.date.available2016-08-23T14:09:31Z-
dc.date.issued2016-
dc.identifier.citationIEEE Transactions on Smart Grid, 2016-
dc.identifier.issn1949-3053-
dc.identifier.urihttp://hdl.handle.net/10722/229185-
dc.description.abstractTo achieve higher accuracy of estimated dynamic states, PMU measurements of buses in a network can be used for dynamic state estimation (DSE). However, it is difficult to coordinate the states of boundary buses in different areas when performing multi-area DSE. By using PMU measurements of buses in the network, this paper proposes an extended Kalman filter (EKF) based method with equality constraints to conduct multi-area DSE. First, a corrective strategy is proposed to estimate a corrective internal voltage (CIV) and a corrective rotor angle (CRA) of each generator with all PMUs’ measurements. The proposed corrective strategy can also ensure the consistency of the boundary buses in the multi-areas. Then, the CIV and the CRA are used to establish equality constraints for updating the dynamic states with the PMU measurements. An IEEE 30-bus system and an IEEE 118-bus system are used to validate the proposed method, with the results showing the feasibility and accuracy of the proposed method.-
dc.languageeng-
dc.relation.ispartofIEEE Transactions on Smart Grid-
dc.titleMulti-Area Dynamic State Estimation with PMU Measurements by an Equality Constrained Extended Kalman Filter-
dc.typeArticle-
dc.identifier.emailHou, Y: yhhou@hku.hk-
dc.identifier.authorityHou, Y=rp00069-
dc.identifier.doi10.1109/TSG.2016.2570943-
dc.identifier.hkuros260914-

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