Uncertainty-Tolerant Harmonic Meter Placement in Power Systems With High Penetration of Harmonic Sources
In modern power systems, the prevalence of harmonic distortion mandates robust monitoring. Harmonic monitoring faces formidable challenges due to significant uncertainties in measurements, network parameters, and the varying nature of harmonic sources alongside the limited deployment of harmonic met...
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IEEE
2024-01-01
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| Online Access: | https://ieeexplore.ieee.org/document/10807170/ |
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| author | Ahmadreza Eslami Michael Negnevitsky Evan Franklin Sarah Lyden |
| author_facet | Ahmadreza Eslami Michael Negnevitsky Evan Franklin Sarah Lyden |
| author_sort | Ahmadreza Eslami |
| collection | DOAJ |
| description | In modern power systems, the prevalence of harmonic distortion mandates robust monitoring. Harmonic monitoring faces formidable challenges due to significant uncertainties in measurements, network parameters, and the varying nature of harmonic sources alongside the limited deployment of harmonic meters and inaccessible nodes. A remedy involves the development of potentially uncertain voltage/current pseudo-meters. This paper proposes a novel probabilistic observability method used to estimate harmonic states within defined ranges with a confidence level. Subsequently, network buses are classified into three zones with regard to their harmonic state values being above, below, or uncertain relative to harmonic limits. Leveraging this approach, the number of actual harmonic meters, indicative of monitoring system cost, the bus misclassification index and the probability of misestimating harmonic states considering harmonic limits are minimized. The uncertainties in measurements, network parameters and varying outputs of harmonic sources are addressed. The developed monitoring system is capable of truly identifying buses with harmonic states violating or likely to violate harmonic limits (hot-spots). Demonstrations on IEEE 14-bus test system, IEEE 118-bus test system and the field measurements from the Tasmanian transmission network attest to the method’s efficacy, scalability and generalization capability, while considering high uncertainty in harmonic monitoring with fewer meters than the number of harmonic states. Comparative analysis with other HSE techniques and evaluation of the computational requirements of the proposed method demonstrate both its superiority and robustness. The proposed method provides a promising cost-effective approach for harmonic monitoring in modern power systems with high penetration of distributed harmonic sources. |
| format | Article |
| id | doaj-art-141b034db428414a967da4a0977d6c04 |
| institution | DOAJ |
| issn | 2169-3536 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-141b034db428414a967da4a0977d6c042025-08-20T02:43:46ZengIEEEIEEE Access2169-35362024-01-011219520419522810.1109/ACCESS.2024.352036310807170Uncertainty-Tolerant Harmonic Meter Placement in Power Systems With High Penetration of Harmonic SourcesAhmadreza Eslami0https://orcid.org/0000-0001-7893-9075Michael Negnevitsky1https://orcid.org/0000-0002-5130-419XEvan Franklin2https://orcid.org/0000-0002-8146-2770Sarah Lyden3https://orcid.org/0000-0002-5364-6011Centre of Renewable Energy and Power Systems, University of Tasmania, Hobart, TAS, AustraliaCentre of Renewable Energy and Power Systems, University of Tasmania, Hobart, TAS, AustraliaCentre of Renewable Energy and Power Systems, University of Tasmania, Hobart, TAS, AustraliaCentre of Renewable Energy and Power Systems, University of Tasmania, Hobart, TAS, AustraliaIn modern power systems, the prevalence of harmonic distortion mandates robust monitoring. Harmonic monitoring faces formidable challenges due to significant uncertainties in measurements, network parameters, and the varying nature of harmonic sources alongside the limited deployment of harmonic meters and inaccessible nodes. A remedy involves the development of potentially uncertain voltage/current pseudo-meters. This paper proposes a novel probabilistic observability method used to estimate harmonic states within defined ranges with a confidence level. Subsequently, network buses are classified into three zones with regard to their harmonic state values being above, below, or uncertain relative to harmonic limits. Leveraging this approach, the number of actual harmonic meters, indicative of monitoring system cost, the bus misclassification index and the probability of misestimating harmonic states considering harmonic limits are minimized. The uncertainties in measurements, network parameters and varying outputs of harmonic sources are addressed. The developed monitoring system is capable of truly identifying buses with harmonic states violating or likely to violate harmonic limits (hot-spots). Demonstrations on IEEE 14-bus test system, IEEE 118-bus test system and the field measurements from the Tasmanian transmission network attest to the method’s efficacy, scalability and generalization capability, while considering high uncertainty in harmonic monitoring with fewer meters than the number of harmonic states. Comparative analysis with other HSE techniques and evaluation of the computational requirements of the proposed method demonstrate both its superiority and robustness. The proposed method provides a promising cost-effective approach for harmonic monitoring in modern power systems with high penetration of distributed harmonic sources.https://ieeexplore.ieee.org/document/10807170/Harmonic meter placementharmonic observabilityharmonic state estimationuncertainty |
| spellingShingle | Ahmadreza Eslami Michael Negnevitsky Evan Franklin Sarah Lyden Uncertainty-Tolerant Harmonic Meter Placement in Power Systems With High Penetration of Harmonic Sources IEEE Access Harmonic meter placement harmonic observability harmonic state estimation uncertainty |
| title | Uncertainty-Tolerant Harmonic Meter Placement in Power Systems With High Penetration of Harmonic Sources |
| title_full | Uncertainty-Tolerant Harmonic Meter Placement in Power Systems With High Penetration of Harmonic Sources |
| title_fullStr | Uncertainty-Tolerant Harmonic Meter Placement in Power Systems With High Penetration of Harmonic Sources |
| title_full_unstemmed | Uncertainty-Tolerant Harmonic Meter Placement in Power Systems With High Penetration of Harmonic Sources |
| title_short | Uncertainty-Tolerant Harmonic Meter Placement in Power Systems With High Penetration of Harmonic Sources |
| title_sort | uncertainty tolerant harmonic meter placement in power systems with high penetration of harmonic sources |
| topic | Harmonic meter placement harmonic observability harmonic state estimation uncertainty |
| url | https://ieeexplore.ieee.org/document/10807170/ |
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