Analysis of Wideband Oscillation Mechanism and Suppression Technology Based on C-Type Damping Filter.
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| Title: | Analysis of Wideband Oscillation Mechanism and Suppression Technology Based on C-Type Damping Filter. |
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| Authors: | Xu, Zheng1 (AUTHOR) |
| Source: | Energies (19961073). Feb2026, Vol. 19 Issue 4, p943. 16p. |
| Subject Terms: | *Resonance, *Power electronics, *Frequencies of oscillating systems, *Renewable energy sources, *Dynamic stability, *Energy dissipation |
| Abstract: | Based on the dilemma of analyzing the resonance stability of AC power grids using impedance models, it is demonstrated that the "negative resistance" mechanism of wideband oscillation is untenable. A general method for describing power electronic devices using wideband voltage-source converter models and wideband current-source converter models is proposed, thereby representing the nonlinear characteristics of power electronic devices with harmonic voltage sources and harmonic current sources. This allows the renewable energy power system to still be described by a linear system, and interprets the mechanism of wideband oscillation as a "harmonic amplification" phenomenon caused by network resonance, thus establishing a new framework for explaining the mechanism of wideband oscillation in renewable energy power systems. Through the analysis of two basic resonant circuits, the relationship between the damping ratio of resonant modes and the harmonic amplification factor is derived, laying a theoretical foundation for the analysis and suppression of wideband oscillation based on the s-domain nodal admittance matrix method and C-type damping filters. Based on the maximum damping criterion, a design method for C-type damping filters is proposed. The designed C-type damping filters exhibit strong broadband damping effects. [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: 191973363 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Analysis of Wideband Oscillation Mechanism and Suppression Technology Based on C-Type Damping Filter. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Xu%2C+Zheng%22">Xu, Zheng</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Feb2026, Vol. 19 Issue 4, p943. 16p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Resonance%22">Resonance</searchLink><br />*<searchLink fieldCode="DE" term="%22Power+electronics%22">Power electronics</searchLink><br />*<searchLink fieldCode="DE" term="%22Frequencies+of+oscillating+systems%22">Frequencies of oscillating systems</searchLink><br />*<searchLink fieldCode="DE" term="%22Renewable+energy+sources%22">Renewable energy sources</searchLink><br />*<searchLink fieldCode="DE" term="%22Dynamic+stability%22">Dynamic stability</searchLink><br />*<searchLink fieldCode="DE" term="%22Energy+dissipation%22">Energy dissipation</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Based on the dilemma of analyzing the resonance stability of AC power grids using impedance models, it is demonstrated that the "negative resistance" mechanism of wideband oscillation is untenable. A general method for describing power electronic devices using wideband voltage-source converter models and wideband current-source converter models is proposed, thereby representing the nonlinear characteristics of power electronic devices with harmonic voltage sources and harmonic current sources. This allows the renewable energy power system to still be described by a linear system, and interprets the mechanism of wideband oscillation as a "harmonic amplification" phenomenon caused by network resonance, thus establishing a new framework for explaining the mechanism of wideband oscillation in renewable energy power systems. Through the analysis of two basic resonant circuits, the relationship between the damping ratio of resonant modes and the harmonic amplification factor is derived, laying a theoretical foundation for the analysis and suppression of wideband oscillation based on the s-domain nodal admittance matrix method and C-type damping filters. Based on the maximum damping criterion, a design method for C-type damping filters is proposed. The designed C-type damping filters exhibit strong broadband damping effects. [ABSTRACT FROM AUTHOR] |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=191973363 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/en19040943 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 943 Subjects: – SubjectFull: Resonance Type: general – SubjectFull: Power electronics Type: general – SubjectFull: Frequencies of oscillating systems Type: general – SubjectFull: Renewable energy sources Type: general – SubjectFull: Dynamic stability Type: general – SubjectFull: Energy dissipation Type: general Titles: – TitleFull: Analysis of Wideband Oscillation Mechanism and Suppression Technology Based on C-Type Damping Filter. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Xu, Zheng IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 02 Text: Feb2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 19961073 Numbering: – Type: volume Value: 19 – Type: issue Value: 4 Titles: – TitleFull: Energies (19961073) Type: main |
| ResultId | 1 |
