A Topology of Current-limiting Hybrid DC Circuit Breaker Based on Auxiliary Capacitor Commutation.
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| Title: | A Topology of Current-limiting Hybrid DC Circuit Breaker Based on Auxiliary Capacitor Commutation. |
|---|---|
| Authors: | Baoge Zhang1 276497535@qq.com, Yuan Wang2 1404243814@qq.com, Shaoning Li2 2678147166@qq.com, Li Ma2 2499046957@qq.com |
| Source: | Engineering Letters. May2025, Vol. 33 Issue 5, p1346-1355. 10p. |
| Subjects: | Direct current circuits, Electric circuit breakers, Energy dissipation, Fault currents, Hybrid integrated circuits, Thyristors |
| Abstract: | To address the issues of the suppressing and the eliminating fault currents in direct current transmission networks, and to reduce the persistently high costs of high-voltage direct current circuit breakers, a low-cost and effective current limitation hybrid direct current circuit breaker topology based on auxiliary capacitors is proposed. Which can implement current limiting and rapid disconnection during the occurrence of faults in the DC power grid. In the topological design, thyristors and auxiliary capacitors work in coordination to provide a tripping command for the ultra-fast mechanical switch (UFMS) and quickly engage the current-limiting branch composed of a capacitor branch to suppress the fault current. This topology adds a capacitor branch and reduces the number of IGBT branches, offering certain economic benefits. At the same time, it introduces a bypass branch that reduces the energy consumption as much as possible for the surge arrester and increases the switching speed of the circuit breaker. The content of the current-limiting has been analyzed through circuit state derivation and the proposed circuit breaker has been conducted, including the fault clearing time, the maximum peak value reached during a fault, the stress on the energy dissipation of the surge arrester, building a 500kV Four-Terminal DC System Simulation Circuit Based on PSCAD/EMTDC. A comparative analysis with existing typical schemes is also conducted, and the results demonstrate the topology has smaller current values, shortened breaking times, and significant cost reduction. [ABSTRACT FROM AUTHOR] |
| Copyright of Engineering Letters is the property of International Association of Engineers (IAENG) and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 185023783 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A Topology of Current-limiting Hybrid DC Circuit Breaker Based on Auxiliary Capacitor Commutation. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Baoge+Zhang%22">Baoge Zhang</searchLink><relatesTo>1</relatesTo><i> 276497535@qq.com</i><br /><searchLink fieldCode="AR" term="%22Yuan+Wang%22">Yuan Wang</searchLink><relatesTo>2</relatesTo><i> 1404243814@qq.com</i><br /><searchLink fieldCode="AR" term="%22Shaoning+Li%22">Shaoning Li</searchLink><relatesTo>2</relatesTo><i> 2678147166@qq.com</i><br /><searchLink fieldCode="AR" term="%22Li+Ma%22">Li Ma</searchLink><relatesTo>2</relatesTo><i> 2499046957@qq.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Engineering+Letters%22">Engineering Letters</searchLink>. May2025, Vol. 33 Issue 5, p1346-1355. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Direct+current+circuits%22">Direct current circuits</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+circuit+breakers%22">Electric circuit breakers</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+dissipation%22">Energy dissipation</searchLink><br /><searchLink fieldCode="DE" term="%22Fault+currents%22">Fault currents</searchLink><br /><searchLink fieldCode="DE" term="%22Hybrid+integrated+circuits%22">Hybrid integrated circuits</searchLink><br /><searchLink fieldCode="DE" term="%22Thyristors%22">Thyristors</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: To address the issues of the suppressing and the eliminating fault currents in direct current transmission networks, and to reduce the persistently high costs of high-voltage direct current circuit breakers, a low-cost and effective current limitation hybrid direct current circuit breaker topology based on auxiliary capacitors is proposed. Which can implement current limiting and rapid disconnection during the occurrence of faults in the DC power grid. In the topological design, thyristors and auxiliary capacitors work in coordination to provide a tripping command for the ultra-fast mechanical switch (UFMS) and quickly engage the current-limiting branch composed of a capacitor branch to suppress the fault current. This topology adds a capacitor branch and reduces the number of IGBT branches, offering certain economic benefits. At the same time, it introduces a bypass branch that reduces the energy consumption as much as possible for the surge arrester and increases the switching speed of the circuit breaker. The content of the current-limiting has been analyzed through circuit state derivation and the proposed circuit breaker has been conducted, including the fault clearing time, the maximum peak value reached during a fault, the stress on the energy dissipation of the surge arrester, building a 500kV Four-Terminal DC System Simulation Circuit Based on PSCAD/EMTDC. A comparative analysis with existing typical schemes is also conducted, and the results demonstrate the topology has smaller current values, shortened breaking times, and significant cost reduction. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Engineering Letters is the property of International Association of Engineers (IAENG) and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 1346 Subjects: – SubjectFull: Direct current circuits Type: general – SubjectFull: Electric circuit breakers Type: general – SubjectFull: Energy dissipation Type: general – SubjectFull: Fault currents Type: general – SubjectFull: Hybrid integrated circuits Type: general – SubjectFull: Thyristors Type: general Titles: – TitleFull: A Topology of Current-limiting Hybrid DC Circuit Breaker Based on Auxiliary Capacitor Commutation. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Baoge Zhang – PersonEntity: Name: NameFull: Yuan Wang – PersonEntity: Name: NameFull: Shaoning Li – PersonEntity: Name: NameFull: Li Ma IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 1816093X Numbering: – Type: volume Value: 33 – Type: issue Value: 5 Titles: – TitleFull: Engineering Letters Type: main |
| ResultId | 1 |
