Impact of Battery Energy System Integration in Frequency Control of an Electrical Grid with Wind Power
Pokhriyal, Anukriti (Institut Català de Nanociència i Nanotecnologia)
Domínguez-García, José Luis (Institut de Recerca Energètica de Catalunya. Jardins de les Dones de Negre)
Gómez-Romero, Pedro 1959- (Institut Català de Nanociència i Nanotecnologia)

Data:	2022
Resum:	The rapid increase in the integration of renewable energy sources into the electrical grid is posing new challenges for the dynamic responses due to the global inertia reduction. In this regard, the impact on frequency stability of such reduction and the potential support from wind power have been investigated lately. However, it is well-known that the variability of wind power and its reduced inertia may not be enough to handle the power unbalance. Energy storage systems (e. g. , batteries) may provide the required additional flexibility to ensure proper response. In this paper, an analysis of how the different control loops for frequency support on wind power and batteries interact and perform is presented. To gain insights from the different impacts, a sensitivity analysis comparison for frequency regulation through (i) inertia and droop control of a variable speed wind turbine and (ii) battery is performed. The analysis was carried out through simulations using the well-known 4 generator 2-area model adapted to include a wind farm. From a battery perspective, its ramping capabilities were varied to provide frequency regulation. The paper shows how, depending on the control parameters and battery size, the frequency response may even become unstable due to interactions of the various pieces of technology. Thus, it shows that coordinated actions, control optimization and grid status among different actors on the grid (as battery and wind) is required for stable operation.
Ajuts:	European Commission 754397
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Wind power plant ; Frequency regulation ; Battery energy storage system ; Droop control ; Inertia control ; Control interaction
Publicat a:	Clean Technologies, Vol. 4, Issue 4 (October 2022) , p. 972-986, ISSN 2571-8797

DOI: 10.3390/cleantechnol4040060

15 p, 10.8 MB

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