State Estimation for Hybrid VSC Based HVDC/AC Transmission Networks
As the integration of High Voltage Direct Current (HVDC) systems on modern power networks continues to expand, challenges have appeared in different fields of the network architecture. In the Supervisory, Control and Data Acquisition (SCADA) field, software and toolboxes are expected to be modified...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/18/4932 |
| _version_ | 1797553209490800640 |
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| author | Motaz Ayiad Helder Leite Hugo Martins |
| author_facet | Motaz Ayiad Helder Leite Hugo Martins |
| author_sort | Motaz Ayiad |
| collection | DOAJ |
| description | As the integration of High Voltage Direct Current (HVDC) systems on modern power networks continues to expand, challenges have appeared in different fields of the network architecture. In the Supervisory, Control and Data Acquisition (SCADA) field, software and toolboxes are expected to be modified to meet the new network characteristics. Therefore, this paper presents a unified Weighted Least Squares (WLS) state estimation algorithm suitable for hybrid HVDC/AC transmission systems, based on Voltage Source Converter (VSC). The mathematical formulas of the unified approach are derived for modelling the AC, DC and converter coupling components. The method couples the AC and DC sides of the converter through power and voltage constraints and measurement functions. Two hybrid power system test cases have been studied to validate this work, a 4-AC/4-DC/4-AC network and Cigre B4 DC test case network. Furthermore, comparison between the fully decentralized state estimation and the unified method is provided, which indicated an accuracy improvement and error reduction. |
| first_indexed | 2024-03-10T16:12:08Z |
| format | Article |
| id | doaj.art-ed4c3f8ef9e74fc39ce2b2ebd2bf950f |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T16:12:08Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-ed4c3f8ef9e74fc39ce2b2ebd2bf950f2023-11-20T14:25:10ZengMDPI AGEnergies1996-10732020-09-011318493210.3390/en13184932State Estimation for Hybrid VSC Based HVDC/AC Transmission NetworksMotaz Ayiad0Helder Leite1Hugo Martins2Efacec Automation, Grid Management Division, 4471-907 Porto, PortugalFaculty of Engineering (FEUP), University of Porto, 4200-465 Porto, PortugalEfacec Automation, Grid Management Division, 4471-907 Porto, PortugalAs the integration of High Voltage Direct Current (HVDC) systems on modern power networks continues to expand, challenges have appeared in different fields of the network architecture. In the Supervisory, Control and Data Acquisition (SCADA) field, software and toolboxes are expected to be modified to meet the new network characteristics. Therefore, this paper presents a unified Weighted Least Squares (WLS) state estimation algorithm suitable for hybrid HVDC/AC transmission systems, based on Voltage Source Converter (VSC). The mathematical formulas of the unified approach are derived for modelling the AC, DC and converter coupling components. The method couples the AC and DC sides of the converter through power and voltage constraints and measurement functions. Two hybrid power system test cases have been studied to validate this work, a 4-AC/4-DC/4-AC network and Cigre B4 DC test case network. Furthermore, comparison between the fully decentralized state estimation and the unified method is provided, which indicated an accuracy improvement and error reduction.https://www.mdpi.com/1996-1073/13/18/4932state estimationWLSunifiedHVDC/ACAC/DCtransmission |
| spellingShingle | Motaz Ayiad Helder Leite Hugo Martins State Estimation for Hybrid VSC Based HVDC/AC Transmission Networks Energies state estimation WLS unified HVDC/AC AC/DC transmission |
| title | State Estimation for Hybrid VSC Based HVDC/AC Transmission Networks |
| title_full | State Estimation for Hybrid VSC Based HVDC/AC Transmission Networks |
| title_fullStr | State Estimation for Hybrid VSC Based HVDC/AC Transmission Networks |
| title_full_unstemmed | State Estimation for Hybrid VSC Based HVDC/AC Transmission Networks |
| title_short | State Estimation for Hybrid VSC Based HVDC/AC Transmission Networks |
| title_sort | state estimation for hybrid vsc based hvdc ac transmission networks |
| topic | state estimation WLS unified HVDC/AC AC/DC transmission |
| url | https://www.mdpi.com/1996-1073/13/18/4932 |
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