Stability enhancement of bi‐directional voltage source converters in modern power systems
Abstract In future modern power systems, reliability and resilience could be an extreme challenge caused by the stability issues of the bidirectional power converters (BPCs). The non‐linear dynamics of DC link voltage (DCLV) of BPCs in interaction with the existing linear control schemes may decreas...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-01-01
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| Series: | IET Generation, Transmission & Distribution |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/gtd2.12856 |
| _version_ | 1797336231260979200 |
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| author | Mohamad Amin Ghasemi Seyed Fariborz Zarei Saeed Peyghami |
| author_facet | Mohamad Amin Ghasemi Seyed Fariborz Zarei Saeed Peyghami |
| author_sort | Mohamad Amin Ghasemi |
| collection | DOAJ |
| description | Abstract In future modern power systems, reliability and resilience could be an extreme challenge caused by the stability issues of the bidirectional power converters (BPCs). The non‐linear dynamics of DC link voltage (DCLV) of BPCs in interaction with the existing linear control schemes may decrease the stability margin and cause operating‐point‐dependent instability issues. Existing approaches may solve this issue by reducing the DCLV control loop bandwidth, which considerably degrades the system performance. To tackle this issue, first, the root cause of the instability challenge is analytically investigated, and then, a non‐linear stabilizer control scheme based on Lyapunov theorem is proposed. Considering the non‐linear dynamic of the BPCs and the interaction between dynamics of DC link voltage and AC currents in the proposed stabilizer, it guarantees the stability of the converter in both directions of power flow and the full range of loading conditions. The performance of the proposed scheme is verified through simulation of the system under various operating conditions, considering uncertainties, disturbances, and short‐circuit events, and comparing it with that of prevalent controllers. |
| first_indexed | 2024-03-08T08:51:14Z |
| format | Article |
| id | doaj.art-5b542bde8b204b35b4fa67fe3c41fe6c |
| institution | Directory Open Access Journal |
| issn | 1751-8687 1751-8695 |
| language | English |
| last_indexed | 2024-03-08T08:51:14Z |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Generation, Transmission & Distribution |
| spelling | doaj.art-5b542bde8b204b35b4fa67fe3c41fe6c2024-02-01T09:36:53ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952024-01-0118226627710.1049/gtd2.12856Stability enhancement of bi‐directional voltage source converters in modern power systemsMohamad Amin Ghasemi0Seyed Fariborz Zarei1Saeed Peyghami2Department of Electrical Engineering Bu‐Ali Sina University Hamadan IranDepartment of Electrical and Computer Engineering Qom University of Technology Qom IranDepartment of AAU Energy Aalborg University Aalborg DenmarkAbstract In future modern power systems, reliability and resilience could be an extreme challenge caused by the stability issues of the bidirectional power converters (BPCs). The non‐linear dynamics of DC link voltage (DCLV) of BPCs in interaction with the existing linear control schemes may decrease the stability margin and cause operating‐point‐dependent instability issues. Existing approaches may solve this issue by reducing the DCLV control loop bandwidth, which considerably degrades the system performance. To tackle this issue, first, the root cause of the instability challenge is analytically investigated, and then, a non‐linear stabilizer control scheme based on Lyapunov theorem is proposed. Considering the non‐linear dynamic of the BPCs and the interaction between dynamics of DC link voltage and AC currents in the proposed stabilizer, it guarantees the stability of the converter in both directions of power flow and the full range of loading conditions. The performance of the proposed scheme is verified through simulation of the system under various operating conditions, considering uncertainties, disturbances, and short‐circuit events, and comparing it with that of prevalent controllers.https://doi.org/10.1049/gtd2.12856AC–DC power convertorsDC–AC power convertorsstabilityvoltage control |
| spellingShingle | Mohamad Amin Ghasemi Seyed Fariborz Zarei Saeed Peyghami Stability enhancement of bi‐directional voltage source converters in modern power systems IET Generation, Transmission & Distribution AC–DC power convertors DC–AC power convertors stability voltage control |
| title | Stability enhancement of bi‐directional voltage source converters in modern power systems |
| title_full | Stability enhancement of bi‐directional voltage source converters in modern power systems |
| title_fullStr | Stability enhancement of bi‐directional voltage source converters in modern power systems |
| title_full_unstemmed | Stability enhancement of bi‐directional voltage source converters in modern power systems |
| title_short | Stability enhancement of bi‐directional voltage source converters in modern power systems |
| title_sort | stability enhancement of bi directional voltage source converters in modern power systems |
| topic | AC–DC power convertors DC–AC power convertors stability voltage control |
| url | https://doi.org/10.1049/gtd2.12856 |
| work_keys_str_mv | AT mohamadaminghasemi stabilityenhancementofbidirectionalvoltagesourceconvertersinmodernpowersystems AT seyedfariborzzarei stabilityenhancementofbidirectionalvoltagesourceconvertersinmodernpowersystems AT saeedpeyghami stabilityenhancementofbidirectionalvoltagesourceconvertersinmodernpowersystems |