Grid frequency support from inverter connected generation

Mlilo, Njabulo and Ahfock, Tony and Brown, Jason ORCID: https://orcid.org/0000-0002-0698-5758 (2021) Grid frequency support from inverter connected generation. In: 31st Australasian Universities Power Engineering Conference (AUPEC 2021), 26 Sep -30 Sep 2021, Perth, Australia.

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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.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 - 31 Dec 2021)
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 - 31 Dec 2021)
Date Deposited: 10 Mar 2022 01:34
Last Modified: 16 Mar 2022 04:46
Uncontrolled Keywords: Frequency control, ancillary services, grid forming inverters, grid following inverters
Fields of Research (2008): 09 Engineering > 0906 Electrical and Electronic Engineering > 090607 Power and Energy Systems Engineering (excl. Renewable Power)
09 Engineering > 0906 Electrical and Electronic Engineering > 090608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)
Fields of Research (2020): 40 ENGINEERING > 4008 Electrical engineering > 400803 Electrical energy generation (incl. renewables, excl. photovoltaics)
40 ENGINEERING > 4008 Electrical engineering > 400805 Electrical energy transmission, networks and systems
Socio-Economic Objectives (2008): B Economic Development > 85 Energy > 8506 Energy Storage, Distribution and Supply > 850601 Energy Services and Utilities
B Economic Development > 85 Energy > 8507 Energy Conservation and Efficiency > 850702 Energy Conservation and Efficiency in Transport
B Economic Development > 85 Energy > 8506 Energy Storage, Distribution and Supply > 850604 Energy Transmission and Distribution (excl. Hydrogen)
Socio-Economic Objectives (2020): 17 ENERGY > 1703 Energy storage, distribution and supply > 170303 Energy services and utilities
17 ENERGY > 1703 Energy storage, distribution and supply > 170306 Energy transmission and distribution (excl. hydrogen)
Identification Number or DOI: https://doi.org/10.1109/AUPEC52110.2021.9597782
URI: http://eprints.usq.edu.au/id/eprint/46233

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