Frequency Droop-Based Synchronverter Without Battery for Primary Support of Microgrids
Document Type
Article
Publication Date
7-2-2022
Department
Department of Electrical and Computer Engineering
Abstract
Distributed generation (DG) based on synchronverter with no battery is unable to provide frequency support without compromising DC-bus voltage level. However, this paper proposes a new synchronverter, which can outline this limitation by adjusting the DC-bus voltage setpoint if the grid frequency gets out of a safe predefined range. This is done through a droop mechanism as long as the DC-bus voltage level is inside range. Similarly, if the grid voltage gets out of a scheduled range, a voltage droop is triggered to provide voltage support. Thus, the proposed synchronverter brings support capability with no battery and maintains a safe DC-bus voltage level. Performance is assessed in an eolic–photovoltaic hybrid DG in a microgrid. The obtained results demonstrate the primary support capability with no battery and prolonged support capability if a battery is instead used in DC bus.
Publication Title
Journal of Control, Automation and Electrical Systems
Recommended Citation
da Silva Santos, M.,
Sales Barros, L.,
Costa, F. B.,
Mara Vital Barros, C.,
Penha Silva Junior, G.,
&
Strunz, K.
(2022).
Frequency Droop-Based Synchronverter Without Battery for Primary Support of Microgrids.
Journal of Control, Automation and Electrical Systems.
http://doi.org/10.1007/s40313-022-00928-9
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/16248