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

Nouri, Bijan; Noureldin, Kareem; Schlichting, Tim; Wilbert, Stefan; Hirsch, Tobias; Schroedter-Homscheidt, Marion; Kuhn, Pascal Moritz; Kazantzidis, Andreas; Zarzalejo, Luis F.; Blanc, Philippe; Yasser, Zeyad; Fernández, Jesús; Pitz‐Paal, Robert

doi:10.1016/j.solener.2020.01.045

Cited by 26 publications

(6 citation statements)

References 38 publications

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“…An extreme ramp event caused by transient clouds may cause a rapid reduction or increase in power. Therefore, solar nowcasting is a crucial component of the operation of solar plants providing an increase of the financial profits and improving their reliability [4,5]. In addition, using solar nowcasting, the reduction of the reliance between the energy sources and operation reserves can be achieved as this results in a decrease of the imbalances in the grid [6].…”

Section: Introductionmentioning

confidence: 99%

Benchmarking of solar irradiance nowcast performance derived from all-sky imagers

Logothetis

Salamalikis

Wilbert³

et al. 2022

Renewable Energy

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Section: Introductionmentioning

confidence: 99%

Benchmarking of solar irradiance nowcast performance derived from all-sky imagers

Logothetis

Salamalikis

Wilbert³

et al. 2022

Renewable Energy

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“…This requires the classification of the DNI situation according to the spatial and temporal variability on the solar field. A study shows that such classification method has a potential to improve the yield by a further 1-2% with respect to the reference controller [52].…”

Section: Discussionmentioning

confidence: 99%

Evaluating the Potential Benefit of Using Nowcasting Systems to Improve the Yield of Parabolic Trough Power Plants with Single-Phase HTF

Noureldin

Hirsch

Nouri³

et al. 2021

Energies

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Solar field developers include innovative solutions to optimize the energy production of their plants. Simulation tools play a significant role in the design and testing phases as they provide estimations of this yield in different conditions. Transient processes, like passing clouds and solar field start-up, are specifically challenging to optimize and estimate using such simulation tools. Solar fields are subject to high degree of both temporal and spatial variability in the energy input and a detailed estimation can be achieved by simulating subsystems within acceptable time and computational power. Hence, such simulation tools cannot be utilized for tests under realistic operation conditions. The Virtual Solar Field is a computationally efficient simulation tool that allows a detailed transient simulation of parabolic trough solar fields based on single-phase fluids. Using this tool, developers could reproduce a transient test case with exactly the same disturbances to provide fair comparisons between different configurations. In this paper, an evaluation process based on numerical simulations using the Virtual Solar Field is presented. The economic benefit of novel innovative control concepts can be assessed according to the presented scheme. This is demonstrated by evaluating the potential benefit of availability of spatial DNI nowcasts on the control of parabolic trough solar fields. Results show that nowcasting can increase the economic revenue of commercial power plants by up to 2.5% per day. This proves the feasibility of installing such systems.

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“…Both systems track the cloud movements and, therefore, deliver short-term forecasts of up to 30 min. These forecasts can be used for advanced control strategies in the solar field and make it possible to increase the total yield of the plant by up to 2% [74,75]. Another option is the usage in high resolution solar field models for detailed simulations of the behavior of the field in transient situations [76,77].…”

Section: On-site Measurementsmentioning

confidence: 99%

State-of-the-Art Measurement Instrumentation and Most Recent Measurement Techniques for Parabolic Trough Collector Fields

Brenner

Hirsch

Röger³

et al. 2021

Energies

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The presented review gives reliable information about the currently used measurement instrumentation in parabolic trough fields and recent monitoring approaches. The usually built-in measurement equipment in the solar field, clamp-on systems for flexible measurements of temperature and flow, solar irradiance measurements, standard meteorological equipment, laboratory devices for heat transfer fluid analyses and instruments related to the tracking of solar collector assemblies are presented in detail. The measurement systems are reported with their measurement uncertainty, approximate costs and usual installation location for the built-in instrumentation. Specific findings related to the installation and operation of the measurement devices are presented. The usually installed instrumentation delivers a lot of measurements all over the field at the expense of measurement accuracy, compared to special test facility equipment. Recently introduced measurement approaches can improve the standard instrumentation in terms of accuracy, frequency, spatial distribution or can even extend the amount of measurands. The information about available measurands is the basis for future operation and maintenance solutions based on data-driven approaches.

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

Cited by 26 publications

References 38 publications

Benchmarking of solar irradiance nowcast performance derived from all-sky imagers

Benchmarking of solar irradiance nowcast performance derived from all-sky imagers

Evaluating the Potential Benefit of Using Nowcasting Systems to Improve the Yield of Parabolic Trough Power Plants with Single-Phase HTF

State-of-the-Art Measurement Instrumentation and Most Recent Measurement Techniques for Parabolic Trough Collector Fields

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