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Benefits of battery hybridization in hydraulic turbines. Wear and tear evaluation in a Kaplan prototype

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10.1016/j.renene.2022.08.117
 
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hdl:2117/374373

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Valentín Ruiz, DavidMés informacióMés informacióMés informació
Presas Batlló, AlexandreMés informacióMés informacióMés informació
Egusquiza Montagut, MònicaMés informacióMés informacióMés informació
Valero Ferrando, Ma. del CarmenMés informacióMés informació
Drommi, Jean-Louis
Document typeArticle
Defense date2022-11
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 4.0 International
This work is protected by the corresponding intellectual and industrial property rights. Except where otherwise noted, its contents are licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 4.0 International
Abstract
Kaplan turbines are nowadays used to provide Frequency Containment Reserve (FCR) to the grid due to their fast capacity to regulate their power maintaining high efficiency. However, this continuous power regulation increases the wear and tear of the regulation system considerably. To reduce the amount of movements in the regulation servomotors, and thus their wear and tear, a new technology is being investigated within the frame of the European project XFLEX Hydro. This new technology is based on hybridizing the hydro unit with a small size battery in parallel, this one being in charge of compensating the small frequency fluctuations in the grid by providing or absorbing power. In this paper, the benefits of the implementation of this new technology are evaluated. A Kaplan turbine prototype located in Vogelgrun, France, has been hybridized and different parameters have been monitored while the unit was working in hybrid mode and in normal standalone hydro mode. Wear and tear of the regulation system have been compared for both hybrid and standalone hydro modes. A reduction of about 25% in servomotors mileage and of 50% in fatigue damage have been obtained by hybridizing the unit.
CitationValentin, D. [et al.]. Benefits of battery hybridization in hydraulic turbines. Wear and tear evaluation in a Kaplan prototype. "Renewable energy", Novembre 2022, vol. 199, p. 35-43. 
URIhttp://hdl.handle.net/2117/374373
DOI10.1016/j.renene.2022.08.117
ISSN0960-1481
Publisher versionhttps://www.sciencedirect.com/science/article/pii/S0960148122012927
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  • Departament de Mecànica de Fluids - Articles de revista [513]
  • CDIF - Centre de Diagnòstic Industrial i Fluidodinàmica - Articles de revista [89]
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