Multi-Parameter Sensitivity Analysis and Engineering Configuration Optimization Strategies for Sheath Protectors in 220 kV Cable Systems Based on Overvoltage Characteristic Analysis.
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| Title: | Multi-Parameter Sensitivity Analysis and Engineering Configuration Optimization Strategies for Sheath Protectors in 220 kV Cable Systems Based on Overvoltage Characteristic Analysis. |
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| Authors: | Ji, Xiaoyan1 (AUTHOR), Liu, Yong1,2 (AUTHOR) tjuliuyong@tju.edu.cn, Li, Qiran1,2 (AUTHOR) |
| Source: | Energies (19961073). Jun2026, Vol. 19 Issue 12, p2929. 20p. |
| Subject Terms: | *Overvoltage, *Sensitivity analysis, *Process optimization, *Lightning, *Electrical harmonics, *Short circuits, *Electric appliance protection |
| Abstract: | This paper focuses on 220 kV cable sheath overvoltage caused by three typical operating conditions: harmonics, short-circuits, and lightning strikes. A sheath voltage simulation model on the 220 kV side is developed in PSCAD. Through multi-parameter scanning and sensitivity analysis, the overvoltage characteristics and key influencing factors are systematically studied, and engineering optimization strategies for sheath protector configuration are proposed for different types of overvoltage. Under harmonic conditions, a suppression circuit composed of discharge capacitance and discharge resistors is proposed to attenuate high-frequency disturbances. Under high-amplitude overvoltage conditions such as short-circuits and lightning strikes, the sheath protector configuration is optimized by adjusting cable length and grounding configuration. Under large current conditions, a parallel configuration scheme for sheath protectors is proposed from the perspective of energy absorption. Multi-condition simulations are conducted, and a simulation-based case study is carried out based on the actual layout and parameters of a traction substation cable line. The results show that the proposed strategies can effectively reduce the peak value of sheath overvoltage, providing simulation-based quantitative engineering guidance for the configuration of 220 kV cable sheath protectors based on sensitivity analysis results. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
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| FullText | Links: – Type: pdflink Text: Availability: 1 |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 194909378 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Multi-Parameter Sensitivity Analysis and Engineering Configuration Optimization Strategies for Sheath Protectors in 220 kV Cable Systems Based on Overvoltage Characteristic Analysis. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Ji%2C+Xiaoyan%22">Ji, Xiaoyan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Yong%22">Liu, Yong</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> tjuliuyong@tju.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Qiran%22">Li, Qiran</searchLink><relatesTo>1,2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Jun2026, Vol. 19 Issue 12, p2929. 20p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Overvoltage%22">Overvoltage</searchLink><br />*<searchLink fieldCode="DE" term="%22Sensitivity+analysis%22">Sensitivity analysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Process+optimization%22">Process optimization</searchLink><br />*<searchLink fieldCode="DE" term="%22Lightning%22">Lightning</searchLink><br />*<searchLink fieldCode="DE" term="%22Electrical+harmonics%22">Electrical harmonics</searchLink><br />*<searchLink fieldCode="DE" term="%22Short+circuits%22">Short circuits</searchLink><br />*<searchLink fieldCode="DE" term="%22Electric+appliance+protection%22">Electric appliance protection</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This paper focuses on 220 kV cable sheath overvoltage caused by three typical operating conditions: harmonics, short-circuits, and lightning strikes. A sheath voltage simulation model on the 220 kV side is developed in PSCAD. Through multi-parameter scanning and sensitivity analysis, the overvoltage characteristics and key influencing factors are systematically studied, and engineering optimization strategies for sheath protector configuration are proposed for different types of overvoltage. Under harmonic conditions, a suppression circuit composed of discharge capacitance and discharge resistors is proposed to attenuate high-frequency disturbances. Under high-amplitude overvoltage conditions such as short-circuits and lightning strikes, the sheath protector configuration is optimized by adjusting cable length and grounding configuration. Under large current conditions, a parallel configuration scheme for sheath protectors is proposed from the perspective of energy absorption. Multi-condition simulations are conducted, and a simulation-based case study is carried out based on the actual layout and parameters of a traction substation cable line. The results show that the proposed strategies can effectively reduce the peak value of sheath overvoltage, providing simulation-based quantitative engineering guidance for the configuration of 220 kV cable sheath protectors based on sensitivity analysis results. [ABSTRACT FROM AUTHOR] |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=194909378 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/en19122929 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 20 StartPage: 2929 Subjects: – SubjectFull: Overvoltage Type: general – SubjectFull: Sensitivity analysis Type: general – SubjectFull: Process optimization Type: general – SubjectFull: Lightning Type: general – SubjectFull: Electrical harmonics Type: general – SubjectFull: Short circuits Type: general – SubjectFull: Electric appliance protection Type: general Titles: – TitleFull: Multi-Parameter Sensitivity Analysis and Engineering Configuration Optimization Strategies for Sheath Protectors in 220 kV Cable Systems Based on Overvoltage Characteristic Analysis. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Ji, Xiaoyan – PersonEntity: Name: NameFull: Liu, Yong – PersonEntity: Name: NameFull: Li, Qiran IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 19961073 Numbering: – Type: volume Value: 19 – Type: issue Value: 12 Titles: – TitleFull: Energies (19961073) Type: main |
| ResultId | 1 |
