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Article: Distributed Hybrid Power State Estimation under PMU Sampling Phase Errors
Title | Distributed Hybrid Power State Estimation under PMU Sampling Phase Errors |
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Authors | |
Keywords | Phase mismatch PMU SCADA state estimation |
Issue Date | 2014 |
Citation | IEEE Transactions on Signal Processing, 2014, v. 62, p. 4052-4063 How to Cite? |
Abstract | Phasor measurement units (PMUs) have the advan- tage of providing direct measurements of power states. However, as the number of PMUs in a power system is limited, the traditional supervisory control and data acquisition (SCADA) system cannot be replaced by the PMU-based system overnight. Therefore, hy- brid power state estimation taking advantage of both systems is im- portant. As experiments show that sampling phase errors among PMUs are inevitable in practical deployment, this paper proposes a distributed power state estimation algorithm under PMU phase er- rors. The proposed distributed algorithm only involves local com- putations and limited information exchange between neighboring areas, thus alleviating the heavy communication burden compared to the centralized approach. Simulation results show that the per- formance of the proposed algorithm is very close to that of central- ized optimal hybrid state estimates without sampling phase error. |
Persistent Identifier | http://hdl.handle.net/10722/215305 |
ISSN | 2023 Impact Factor: 4.6 2023 SCImago Journal Rankings: 2.520 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | DU, J | - |
dc.contributor.author | Ma, S | - |
dc.contributor.author | Wu, YC | - |
dc.contributor.author | Poor, VH | - |
dc.date.accessioned | 2015-08-21T13:21:20Z | - |
dc.date.available | 2015-08-21T13:21:20Z | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | IEEE Transactions on Signal Processing, 2014, v. 62, p. 4052-4063 | - |
dc.identifier.issn | 1053-587X | - |
dc.identifier.uri | http://hdl.handle.net/10722/215305 | - |
dc.description.abstract | Phasor measurement units (PMUs) have the advan- tage of providing direct measurements of power states. However, as the number of PMUs in a power system is limited, the traditional supervisory control and data acquisition (SCADA) system cannot be replaced by the PMU-based system overnight. Therefore, hy- brid power state estimation taking advantage of both systems is im- portant. As experiments show that sampling phase errors among PMUs are inevitable in practical deployment, this paper proposes a distributed power state estimation algorithm under PMU phase er- rors. The proposed distributed algorithm only involves local com- putations and limited information exchange between neighboring areas, thus alleviating the heavy communication burden compared to the centralized approach. Simulation results show that the per- formance of the proposed algorithm is very close to that of central- ized optimal hybrid state estimates without sampling phase error. | - |
dc.language | eng | - |
dc.relation.ispartof | IEEE Transactions on Signal Processing | - |
dc.subject | Phase mismatch | - |
dc.subject | PMU | - |
dc.subject | SCADA | - |
dc.subject | state estimation | - |
dc.title | Distributed Hybrid Power State Estimation under PMU Sampling Phase Errors | - |
dc.type | Article | - |
dc.identifier.email | Wu, YC: ycwu@eee.hku.hk | - |
dc.identifier.authority | Ma, S=rp00153 | - |
dc.identifier.authority | Wu, YC=rp00195 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1109/TSP.2014.2332438 | - |
dc.identifier.scopus | eid_2-s2.0-84904789066 | - |
dc.identifier.hkuros | 248922 | - |
dc.identifier.volume | 62 | - |
dc.identifier.spage | 4052 | - |
dc.identifier.epage | 4063 | - |
dc.identifier.eissn | 1941-0476 | - |
dc.identifier.isi | WOS:000340845200002 | - |
dc.identifier.issnl | 1053-587X | - |