Adaptive Control for Improved Virtual Synchronous Generator Under Imbalanced Grid Voltage
As renewable energy continues to grow, more inverter-based distributed generators are being integrated into power grids, in which virtual synchronous generator (VSG) is widely adopted to regulate system voltage and stabilize frequency. However, grid voltage imbalances can cause serious oscillations...
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| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Open Journal of the Industrial Electronics Society |
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| Online Access: | https://ieeexplore.ieee.org/document/10595133/ |
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| author | Yangyang Chen Wei Han Youhao Hu Yilin Zhang |
| author_facet | Yangyang Chen Wei Han Youhao Hu Yilin Zhang |
| author_sort | Yangyang Chen |
| collection | DOAJ |
| description | As renewable energy continues to grow, more inverter-based distributed generators are being integrated into power grids, in which virtual synchronous generator (VSG) is widely adopted to regulate system voltage and stabilize frequency. However, grid voltage imbalances can cause serious oscillations in active power and system frequency, thus severely limiting the effectiveness of VSGs. Consequently, this study proposes an adaptive control strategy to enhance the dynamic performance of VSG under an imbalanced grid voltage. Compared to conventional VSG control methods, the proposed approach enables dynamic adjustment of the inertia and damping coefficients based on the output angular frequency oscillations, so as to shorten the settling time and reduce active power overshoot. The error-driven adaptive mechanism forms a closed-loop control, which effectively keeps the system stable regardless of parameter variations. Additionally, it combines with balanced output current (BOC), constant active power (CAP), and constant reactive power (CRP) control modes to further improve effectiveness. Finally, verifications have been conducted in the MATLAB/SIMULINK and hardware-in-the-loop (HIL) environment to demonstrate the superiority and feasibility of the proposed method. |
| format | Article |
| id | doaj-art-acfea5211cf544fb9185090ad5099608 |
| institution | Kabale University |
| issn | 2644-1284 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of the Industrial Electronics Society |
| spelling | doaj-art-acfea5211cf544fb9185090ad50996082025-01-17T00:00:47ZengIEEEIEEE Open Journal of the Industrial Electronics Society2644-12842024-01-01572273610.1109/OJIES.2024.342666210595133Adaptive Control for Improved Virtual Synchronous Generator Under Imbalanced Grid VoltageYangyang Chen0https://orcid.org/0009-0005-0653-1915Wei Han1https://orcid.org/0000-0001-8308-6169Youhao Hu2Yilin Zhang3https://orcid.org/0009-0006-8837-3048Sustainable Energy and Environment Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, ChinaSustainable Energy and Environment Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, ChinaSustainable Energy and Environment Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, ChinaSustainable Energy and Environment Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, ChinaAs renewable energy continues to grow, more inverter-based distributed generators are being integrated into power grids, in which virtual synchronous generator (VSG) is widely adopted to regulate system voltage and stabilize frequency. However, grid voltage imbalances can cause serious oscillations in active power and system frequency, thus severely limiting the effectiveness of VSGs. Consequently, this study proposes an adaptive control strategy to enhance the dynamic performance of VSG under an imbalanced grid voltage. Compared to conventional VSG control methods, the proposed approach enables dynamic adjustment of the inertia and damping coefficients based on the output angular frequency oscillations, so as to shorten the settling time and reduce active power overshoot. The error-driven adaptive mechanism forms a closed-loop control, which effectively keeps the system stable regardless of parameter variations. Additionally, it combines with balanced output current (BOC), constant active power (CAP), and constant reactive power (CRP) control modes to further improve effectiveness. Finally, verifications have been conducted in the MATLAB/SIMULINK and hardware-in-the-loop (HIL) environment to demonstrate the superiority and feasibility of the proposed method.https://ieeexplore.ieee.org/document/10595133/Adaptive controlimbalanced grid voltagevirtual synchronous generator (VSG) |
| spellingShingle | Yangyang Chen Wei Han Youhao Hu Yilin Zhang Adaptive Control for Improved Virtual Synchronous Generator Under Imbalanced Grid Voltage IEEE Open Journal of the Industrial Electronics Society Adaptive control imbalanced grid voltage virtual synchronous generator (VSG) |
| title | Adaptive Control for Improved Virtual Synchronous Generator Under Imbalanced Grid Voltage |
| title_full | Adaptive Control for Improved Virtual Synchronous Generator Under Imbalanced Grid Voltage |
| title_fullStr | Adaptive Control for Improved Virtual Synchronous Generator Under Imbalanced Grid Voltage |
| title_full_unstemmed | Adaptive Control for Improved Virtual Synchronous Generator Under Imbalanced Grid Voltage |
| title_short | Adaptive Control for Improved Virtual Synchronous Generator Under Imbalanced Grid Voltage |
| title_sort | adaptive control for improved virtual synchronous generator under imbalanced grid voltage |
| topic | Adaptive control imbalanced grid voltage virtual synchronous generator (VSG) |
| url | https://ieeexplore.ieee.org/document/10595133/ |
| work_keys_str_mv | AT yangyangchen adaptivecontrolforimprovedvirtualsynchronousgeneratorunderimbalancedgridvoltage AT weihan adaptivecontrolforimprovedvirtualsynchronousgeneratorunderimbalancedgridvoltage AT youhaohu adaptivecontrolforimprovedvirtualsynchronousgeneratorunderimbalancedgridvoltage AT yilinzhang adaptivecontrolforimprovedvirtualsynchronousgeneratorunderimbalancedgridvoltage |