The frequency stability of the power system is challenged by the high penetration of power electronic interfaced renewable energy sources (RES). Energy storage systems (ESS) are used to supply extra power injection to enhance the frequency stability during a disturbance. This paper presents a novel approach for improving the frequency dynamics by incorporating a designed ultracapacitor (UC) with a fully decoupled wind power generation (FDWG) unit. To this aim, a suitable model implementation of UC for real-time simulations is presented. The model constitutes a parallel RC branch, which is appropriate for illustrating the relevant fast UC dynamics that occur within the first milliseconds of the time period of action for fast active-power frequency control services. The frequency performance achieved by the support of the FDWG equipped with UC is compared against the performance achieved by using electrical batteries. The comparison includes the application of droop-derivative frequency control.
|Title of host publication||IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society|
|Subtitle of host publication||Proceedings|
|Number of pages||6|
|Publication status||Published - 2021|
|Event||IECON 2021: 47th Annual Conference of the IEEE Industrial Electronics Society - Virtual at Toronto, Canada|
Duration: 13 Oct 2021 → 16 Oct 2021
Conference number: 47th
|City||Virtual at Toronto|
|Period||13/10/21 → 16/10/21|
Bibliographical noteGreen Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
- Fast active power-frequency control ultracapacitor model
- fully decoupled wind power generator