Grid frequency support from inverter connected generation
Paper
Paper/Presentation Title | Grid frequency support from inverter connected generation |
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Presentation Type | Paper |
Authors | Mlilo, Njabulo (Author), Ahfock, Tony (Author) and Brown, Jason (Author) |
Journal or Proceedings Title | Proceedings of the 31st Australasian Universities Power Engineering Conference (AUPEC 2021) |
Number of Pages | 5 |
Year | 2021 |
Place of Publication | United States |
ISBN | 9781665434515 |
Digital Object Identifier (DOI) | https://doi.org/10.1109/AUPEC52110.2021.9597782 |
Web Address (URL) of Paper | https://ieeexplore.ieee.org/document/9597782 |
Web Address (URL) of Conference Proceedings | https://ieeexplore.ieee.org/xpl/conhome/9597674/proceeding |
Conference/Event | 31st Australasian Universities Power Engineering Conference (AUPEC 2021) |
Event Details | 31st Australasian Universities Power Engineering Conference (AUPEC 2021) Event Date 26 to end of 30 Sep 2021 Event Location Perth, Australia |
Abstract | This paper presents a case study to demonstrate impact of current fleet of inverter connected generation (roof top photovoltaics and utility scale grid following inverters) that have been allowed to connect to power networks with no obligations to respond to system under frequency events. In this study, a grid forming inverter with droop control and grid following inverter connected to a modified IEEE nine-bus test system have been used to show system impact when inverters do not provide system support, and benefits when such inverters provide system support for under frequency events. The case studies performed show that there is potential for inverter connected generation to support transmission grid frequency subject to renewable resource availability or when backed up by energy storage facilities. There is need for grid codes to be reviewed further to put more obligation on intermittent inverter connected generation to provide more grid frequency support functionality, particularly for under frequency events which are the most common in power systems in comparison to over frequency events. |
Keywords | Frequency control, ancillary services, grid forming inverters, grid following inverters |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 400803. Electrical energy generation (incl. renewables, excl. photovoltaics) |
400805. Electrical energy transmission, networks and systems | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | School of Mechanical and Electrical Engineering |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q6z82/grid-frequency-support-from-inverter-connected-generation
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