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Frequency control in an isolated power system with high renewable energy penetration


Ivory, B and Semshchikov, E and Negnevitsky, M, Frequency control in an isolated power system with high renewable energy penetration, Proceedings from the 2020 Australasian Universities Power Engineering Conference (AUPEC), 29 November - 03 December 2020, Hobart, Tasmania, pp. 1-6. ISBN 9780738112176 (2020) [Refereed Conference Paper]


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Copyright 2020 University of Tasmania

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Isolated power systems have traditionally used diesel generation to ensure reliable and stable power. Due to the high costs of purchasing and transporting diesel fuel to remote areas, these communities have been integrating renewable energy sources such as wind and solar to reduce reliance on diesel and decrease operating costs. When there is enough renewable energy to supply the load diesel engines can be turned off completely. This decreases fuel consumption but introduces stability problems due to the lack of spinning reserves and inertia. Energy storage systems can be used effectively for frequency control but are still very expensive. Therefore, some isolated power systems will limit the acceptance of renewables in order to keep diesel engines online for frequency control. This paper investigates the use of a dump load and enhanced frequency response techniques for wind turbines as methods for frequency control to facilitate 100% acceptance of renewable energy. Results showed that a dump load was sufficient for frequency control and kept frequency within 0.3 Hz of nominal frequency. Advanced wind turbine control systems were found to only slightly improve the frequency response by 0.03 Hz.

Item Details

Item Type:Refereed Conference Paper
Keywords:Isolated power systems, high renewable energy, frequency control
Research Division:Engineering
Research Group:Electrical engineering
Research Field:Electrical energy generation (incl. renewables, excl. photovoltaics)
Objective Division:Energy
Objective Group:Energy efficiency
Objective Field:Industrial energy efficiency
UTAS Author:Ivory, B (Mr Benjamin Ivory)
UTAS Author:Semshchikov, E (Mr Evgenii Semshikov)
UTAS Author:Negnevitsky, M (Professor Michael Negnevitsky)
ID Code:142989
Year Published:2020
Deposited By:Engineering
Deposited On:2021-02-18
Last Modified:2021-03-03
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