DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Optimization of parabolic trough power plant operations in variable irradiance conditions using all sky imagers

Nouri, Bijan and Noureldin, Kareem and Schlichting, Tim and Wilbert, Stefan and Hirsch, Tobias and Schroedter-Homscheidt, Marion and Kuhn, Pascal Moritz and Kazantzidis, A. and Zarzalejo, L.F. and Blanc, P. and Yasser, Zeyad and Fernandez-Reche, Jesus and Pitz-Paal, Robert (2020) Optimization of parabolic trough power plant operations in variable irradiance conditions using all sky imagers. Solar Energy (198), pp. 434-453. Elsevier. doi: 10.1016/j.solener.2020.01.045. ISSN 0038-092X.

[img] PDF - Preprint version (submitted draft)

Official URL: https://doi.org/10.1016/j.solener.2020.01.045


The continuously growing penetration of intermittent electricity sources will increase the future demand for dispatchable power plants, which balance out fluctuations within the electrical grids. Parabolic trough power plants with thermal energy storages could be one renewable solution for regions with a high yearly direct normal irradiance (DNI) sum, but in order to compete against other renewable as well as non-renewable technologies, the economic competitiveness must be ensured. Price reductions can be achieved for example by optimizing the plant operation. One shortcoming of state of the art plant controllers is that they only use the DNI measured at one or a few positions in the solar field. Due to the spatial variability of the DNI throughout the solar field this DNI information can be misleading. In this paper, we investigate the optimization potential of solar field control strategies with access to spatially resolved DNI information from all sky imagers (ASI). Uncertainties of the ASI system are considered by introducing additional independent spatial DNI information from a shadow camera system. The spatial and temporal DNI variability of the DNI seen by the controller is classified in distinct DNI variability classes. Two new control strategies are developed, with optimized control parameters for distinct combinations of the spatial and temporal DNI variability classes. These new variability class dependent control strategies are benchmarked in a simulation environment. A relative increase in revenue in excess of 1.9% is observed over a test period with 22 days, compared to a state of the art reference controller.

Item URL in elib:https://elib.dlr.de/134118/
Document Type:Article
Title:Optimization of parabolic trough power plant operations in variable irradiance conditions using all sky imagers
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Nouri, BijanUNSPECIFIEDhttps://orcid.org/0000-0002-9891-1974UNSPECIFIED
Schlichting, TimUNSPECIFIEDhttps://orcid.org/0000-0001-7278-1166UNSPECIFIED
Wilbert, StefanUNSPECIFIEDhttps://orcid.org/0000-0003-3573-3004UNSPECIFIED
Hirsch, TobiasUNSPECIFIEDhttps://orcid.org/0000-0003-0063-0128UNSPECIFIED
Schroedter-Homscheidt, MarionUNSPECIFIEDhttps://orcid.org/0000-0002-1854-903XUNSPECIFIED
Kuhn, Pascal MoritzUNSPECIFIEDhttps://orcid.org/0000-0001-9978-5706UNSPECIFIED
Kazantzidis, A.Lab. of Atm. Physics, Uni Patras, GreeceUNSPECIFIEDUNSPECIFIED
Pitz-Paal, RobertUNSPECIFIEDhttps://orcid.org/0000-0002-3542-3391UNSPECIFIED
Journal or Publication Title:Solar Energy
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 434-453
Keywords:Parabolic trough, All sky imager, Irradiance map, Variability, Solar field control, Shadow camera, Virtual solar field
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Thermal Technology
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Impact of Desert Environment (old), E - Systems Analysis and Technology Assessment (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Qualification
Institute of Networked Energy Systems > Energy Systems Analysis
Deposited By: Kruschinski, Anja
Deposited On:09 Jun 2020 17:15
Last Modified:23 Oct 2023 14:28

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.