Quantitative analysis of sustained oscillation associated with saturation non‐linearity in a grid‐connected voltage source converter Article Swipe
Tianhao Wu
,
Qirong Jiang
,
Jan Shair
,
Xiaorong Xie
,
Yanhui Wang
,
Yongzhi Luo
,
Hangyin Mao
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.1049/rpg2.12075
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.1049/rpg2.12075
The interaction between the voltage source converter (VSC) and weak grid causes a negatively damped or diverging oscillation (DVO). The diverging oscillation generally evolves into a sustained oscillation (STO) when governed by the nonlinearities in the VSC's control system, such as the saturation of pulse width modulation (PWM). The conventional small‐signal impedance/admittance modelling (SSIM/SSAM) and stability analysis methods are not suitable for the characteristic analysis of STO. This paper presents a large‐signal impedance/admittance model (LSIM/LSAM)‐based quantitative analysis method to better understand the mechanism, characteristics, and occurrence conditions of STO. The LSAM extends the SSAM by incorporating the nonlinearity of PWM saturation using the describing function method. First, a unique time‐varying characteristic of the oscillation associated with nonlinearity is investigated. Then, two LSIM/LSAM‐based occurrence criteria for STO are established based on an equivalent RLC circuit model of the system. Three critical pieces of information, including the occurrence condition, frequency, and magnitude, associated with STO are revealed by the criteria. Finally, the LSAM‐based analysis method is applied to investigate the time‐varying admittance of the VSC and to assess the magnitude and frequency of STO. Both the criteria and LSAM‐based analysis results have been verified through time‐domain simulations on a typical grid‐connected VSC.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1049/rpg2.12075
- https://onlinelibrary.wiley.com/doi/pdfdirect/10.1049/rpg2.12075
- OA Status
- gold
- Cited By
- 13
- References
- 36
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3122680333
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Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3122680333Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.1049/rpg2.12075Digital Object Identifier
- Title
-
Quantitative analysis of sustained oscillation associated with saturation non‐linearity in a grid‐connected voltage source converterWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2021Year of publication
- Publication date
-
2021-01-20Full publication date if available
- Authors
-
Tianhao Wu, Qirong Jiang, Jan Shair, Xiaorong Xie, Yanhui Wang, Yongzhi Luo, Hangyin MaoList of authors in order
- Landing page
-
https://doi.org/10.1049/rpg2.12075Publisher landing page
- PDF URL
-
https://onlinelibrary.wiley.com/doi/pdfdirect/10.1049/rpg2.12075Direct link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://onlinelibrary.wiley.com/doi/pdfdirect/10.1049/rpg2.12075Direct OA link when available
- Concepts
-
Linearity, Oscillation (cell signaling), Saturation (graph theory), Grid, Control theory (sociology), Voltage source, Voltage, Electronic engineering, Computer science, Electrical engineering, Mathematics, Engineering, Chemistry, Artificial intelligence, Geometry, Control (management), Combinatorics, BiochemistryTop concepts (fields/topics) attached by OpenAlex
- Cited by
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13Total citation count in OpenAlex
- Citations by year (recent)
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2025: 3, 2024: 5, 2023: 2, 2022: 3Per-year citation counts (last 5 years)
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36Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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