Control of a Single-Phase Islanded Microgrid Based on Virtual Oscillator Control Enhanced With Power Limitation and Robust Distributed Secondary Control
Virtual oscillator control (VOC) has emerged as an alternative solution for controlling parallel connected inverters in microgrids (MGs) due to its self-synchronization and advanced control capabilities. To enhance the operations of VOC-based inverters, this article implements a power limitation con...
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IEEE
2025-01-01
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| Series: | IEEE Open Journal of the Industrial Electronics Society |
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| Online Access: | https://ieeexplore.ieee.org/document/10806632/ |
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| author | Ronald Musona Ioan Serban |
| author_facet | Ronald Musona Ioan Serban |
| author_sort | Ronald Musona |
| collection | DOAJ |
| description | Virtual oscillator control (VOC) has emerged as an alternative solution for controlling parallel connected inverters in microgrids (MGs) due to its self-synchronization and advanced control capabilities. To enhance the operations of VOC-based inverters, this article implements a power limitation controller that dispatches power according to the operating conditions and the primary source availability. Therefore, this mechanism allows the inverter to adapt to the intermittent nature of renewable energy sources and the operational constraints of batteries. The controller can limit both active and reactive power to specified setpoints. When an inverter reaches its power limit, the others that are not restricted by the power limitation take on the extra load. On top of VOC, a robust distributed secondary control was developed to restore the MG voltage and frequency. The controller uses the local frequency and voltage and the powers from the neighboring nodes obtained through a sparse communication network. Last, as part of a single-phase MG configuration, single-phase inverters generate a second-order current component in their dc-link that needs to be restricted from flowing to the dc source. To address this issue, this article implements a minimalist active power decoupling method adapted to the VOC inverter. Extensive simulations and experiments were conducted to validate the operation of the proposed system. |
| format | Article |
| id | doaj-art-d6f55267237147a4aab0d729dc6bbd02 |
| institution | Kabale University |
| issn | 2644-1284 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
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| series | IEEE Open Journal of the Industrial Electronics Society |
| spelling | doaj-art-d6f55267237147a4aab0d729dc6bbd022025-01-10T00:03:40ZengIEEEIEEE Open Journal of the Industrial Electronics Society2644-12842025-01-016254210.1109/OJIES.2024.351980910806632Control of a Single-Phase Islanded Microgrid Based on Virtual Oscillator Control Enhanced With Power Limitation and Robust Distributed Secondary ControlRonald Musona0https://orcid.org/0009-0004-8258-4202Ioan Serban1https://orcid.org/0000-0002-8515-6439Department of Electrical Engineering and Applied Physics, Transilvania University of Brasov, Brasov, RomaniaDepartment of Electrical Engineering and Applied Physics, Transilvania University of Brasov, Brasov, RomaniaVirtual oscillator control (VOC) has emerged as an alternative solution for controlling parallel connected inverters in microgrids (MGs) due to its self-synchronization and advanced control capabilities. To enhance the operations of VOC-based inverters, this article implements a power limitation controller that dispatches power according to the operating conditions and the primary source availability. Therefore, this mechanism allows the inverter to adapt to the intermittent nature of renewable energy sources and the operational constraints of batteries. The controller can limit both active and reactive power to specified setpoints. When an inverter reaches its power limit, the others that are not restricted by the power limitation take on the extra load. On top of VOC, a robust distributed secondary control was developed to restore the MG voltage and frequency. The controller uses the local frequency and voltage and the powers from the neighboring nodes obtained through a sparse communication network. Last, as part of a single-phase MG configuration, single-phase inverters generate a second-order current component in their dc-link that needs to be restricted from flowing to the dc source. To address this issue, this article implements a minimalist active power decoupling method adapted to the VOC inverter. Extensive simulations and experiments were conducted to validate the operation of the proposed system.https://ieeexplore.ieee.org/document/10806632/Active power decoupling (APD)microgrid (MG)power limitationsecondary controlvirtual oscillator control (VOC) |
| spellingShingle | Ronald Musona Ioan Serban Control of a Single-Phase Islanded Microgrid Based on Virtual Oscillator Control Enhanced With Power Limitation and Robust Distributed Secondary Control IEEE Open Journal of the Industrial Electronics Society Active power decoupling (APD) microgrid (MG) power limitation secondary control virtual oscillator control (VOC) |
| title | Control of a Single-Phase Islanded Microgrid Based on Virtual Oscillator Control Enhanced With Power Limitation and Robust Distributed Secondary Control |
| title_full | Control of a Single-Phase Islanded Microgrid Based on Virtual Oscillator Control Enhanced With Power Limitation and Robust Distributed Secondary Control |
| title_fullStr | Control of a Single-Phase Islanded Microgrid Based on Virtual Oscillator Control Enhanced With Power Limitation and Robust Distributed Secondary Control |
| title_full_unstemmed | Control of a Single-Phase Islanded Microgrid Based on Virtual Oscillator Control Enhanced With Power Limitation and Robust Distributed Secondary Control |
| title_short | Control of a Single-Phase Islanded Microgrid Based on Virtual Oscillator Control Enhanced With Power Limitation and Robust Distributed Secondary Control |
| title_sort | control of a single phase islanded microgrid based on virtual oscillator control enhanced with power limitation and robust distributed secondary control |
| topic | Active power decoupling (APD) microgrid (MG) power limitation secondary control virtual oscillator control (VOC) |
| url | https://ieeexplore.ieee.org/document/10806632/ |
| work_keys_str_mv | AT ronaldmusona controlofasinglephaseislandedmicrogridbasedonvirtualoscillatorcontrolenhancedwithpowerlimitationandrobustdistributedsecondarycontrol AT ioanserban controlofasinglephaseislandedmicrogridbasedonvirtualoscillatorcontrolenhancedwithpowerlimitationandrobustdistributedsecondarycontrol |