Research on fast response criterion of power grid distributed loads after HVDC block fault
The system equivalent inertia of the power grid is gradually decreased with the increasing penetration of renewable energy resources, which leads to a higher risk of frequency fluctuation after a major fault. For the frequency emergency control in the scenario of a high‐voltage direct current (HVDC)...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-12-01
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| Series: | IET Generation, Transmission & Distribution |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/iet-gtd.2020.0852 |
| _version_ | 1828104328159690752 |
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| author | Yuling Wang Wannan Zhang Haishun Sun Yingmeng Xiang Di Shi Zhiwei Wang |
| author_facet | Yuling Wang Wannan Zhang Haishun Sun Yingmeng Xiang Di Shi Zhiwei Wang |
| author_sort | Yuling Wang |
| collection | DOAJ |
| description | The system equivalent inertia of the power grid is gradually decreased with the increasing penetration of renewable energy resources, which leads to a higher risk of frequency fluctuation after a major fault. For the frequency emergency control in the scenario of a high‐voltage direct current (HVDC) line block fault, a novel criterion for enabling the fast response of user‐end distributed loads is proposed in this study based on voltage feature identification and frequency drop detection. The reactive power to voltage sensitivity coefficient is combined with the Hausdorff algorithm to increase the accuracy of the calculation. The proposed criterion can realise the HVDC block fault identification at the end of the distribution grid, so as to achieve fast decentralised decision‐making for distributed loads. This method may greatly reduce the need for high‐speed communication and take actions faster than the primary and secondary frequency controls of the traditional units. The criterion makes it possible for low voltage small load in the user‐end to be controlled precisely and selectively to fill the large power imbalanced caused by an HVDC block fault. The validity and superiority of the criterion are verified by simulation experiments using multiple test systems. |
| first_indexed | 2024-04-11T09:45:11Z |
| format | Article |
| id | doaj.art-3ec63f974d6047fa9f8623fc62443435 |
| institution | Directory Open Access Journal |
| issn | 1751-8687 1751-8695 |
| language | English |
| last_indexed | 2024-04-11T09:45:11Z |
| publishDate | 2020-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Generation, Transmission & Distribution |
| spelling | doaj.art-3ec63f974d6047fa9f8623fc624434352022-12-22T04:31:06ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952020-12-0114256230623810.1049/iet-gtd.2020.0852Research on fast response criterion of power grid distributed loads after HVDC block faultYuling Wang0Wannan Zhang1Haishun Sun2Yingmeng Xiang3Di Shi4Zhiwei Wang5State Key Lab of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and TechnologyWuhan430074People's Republic of ChinaState Key Lab of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and TechnologyWuhan430074People's Republic of ChinaState Key Lab of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and TechnologyWuhan430074People's Republic of ChinaGlobal Energy Interconnection Research Institute North AmericaSanta Clara95134USAGlobal Energy Interconnection Research Institute North AmericaSanta Clara95134USAGlobal Energy Interconnection Research Institute North AmericaSanta Clara95134USAThe system equivalent inertia of the power grid is gradually decreased with the increasing penetration of renewable energy resources, which leads to a higher risk of frequency fluctuation after a major fault. For the frequency emergency control in the scenario of a high‐voltage direct current (HVDC) line block fault, a novel criterion for enabling the fast response of user‐end distributed loads is proposed in this study based on voltage feature identification and frequency drop detection. The reactive power to voltage sensitivity coefficient is combined with the Hausdorff algorithm to increase the accuracy of the calculation. The proposed criterion can realise the HVDC block fault identification at the end of the distribution grid, so as to achieve fast decentralised decision‐making for distributed loads. This method may greatly reduce the need for high‐speed communication and take actions faster than the primary and secondary frequency controls of the traditional units. The criterion makes it possible for low voltage small load in the user‐end to be controlled precisely and selectively to fill the large power imbalanced caused by an HVDC block fault. The validity and superiority of the criterion are verified by simulation experiments using multiple test systems.https://doi.org/10.1049/iet-gtd.2020.0852fast response criterionpower gridsystem equivalent inertiarenewable energy resourcesfrequency fluctuationfrequency emergency control |
| spellingShingle | Yuling Wang Wannan Zhang Haishun Sun Yingmeng Xiang Di Shi Zhiwei Wang Research on fast response criterion of power grid distributed loads after HVDC block fault IET Generation, Transmission & Distribution fast response criterion power grid system equivalent inertia renewable energy resources frequency fluctuation frequency emergency control |
| title | Research on fast response criterion of power grid distributed loads after HVDC block fault |
| title_full | Research on fast response criterion of power grid distributed loads after HVDC block fault |
| title_fullStr | Research on fast response criterion of power grid distributed loads after HVDC block fault |
| title_full_unstemmed | Research on fast response criterion of power grid distributed loads after HVDC block fault |
| title_short | Research on fast response criterion of power grid distributed loads after HVDC block fault |
| title_sort | research on fast response criterion of power grid distributed loads after hvdc block fault |
| topic | fast response criterion power grid system equivalent inertia renewable energy resources frequency fluctuation frequency emergency control |
| url | https://doi.org/10.1049/iet-gtd.2020.0852 |
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