Solar Field Layout and Aimpoint Strategy Optimization

Zolan, Alexander; Hamilton, William; Wagner, Michael J.; Liaqat, Kashif

doi:10.2172/1813972

Cited by 3 publications

(1 citation statement)

References 28 publications

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“…However, commercial plants usually consist of several thousands of heliostats. Here, the ant-colony optimization meta-heuristic [14] or the MILP based approach HALOS [15] may be appropriate. Other control algorithms, use heuristic techniques exist such as the Static Aimpoint Processing System (SAPS) algorithm by Vant-Hull, which was modified by Flesch et al [4].…”

Section: Introductionmentioning

confidence: 99%

Static optimal control: A closed-loop control strategy for heliostat aiming in solar power towers

Zanger,

Oberkirsch,

Quinto

et al. 2023

The International Conference on Battery for Renewable Energy and Electric Vehicles (Icb-Rev) 2022

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In this paper, a new closed-loop control for the heliostat aiming of solar tower power plants is proposed. It is called Static Optimal Control and is based upon the ant-colony optimization meta-heuristic. The controller can increase the plant's efficiency, restrict the flux density and compensate for disturbances such as clouds. It is tested on small reference plant with a test case considering a suddenly appearing cloud disturbance. Within the test case, the controller could compensate for a mirror error which caused a drop of the relative power of around 3%. During the cloudy phase, the controller increased the relative power by 1%. The overflux condition which occurred after the cloud suddenly disappeared could be eliminated within 12 control steps. However, this number can be reduced by adjusting the controller parameters.

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Section: Introductionmentioning

confidence: 99%

Static optimal control: A closed-loop control strategy for heliostat aiming in solar power towers

Zanger,

Oberkirsch,

Quinto

et al. 2023

The International Conference on Battery for Renewable Energy and Electric Vehicles (Icb-Rev) 2022

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Performance assessment of Pakistani central receiver plant case study using aimpoint strategy optimization tools

Liaqat,

Zolan,

Ordonez

2023

The International Conference on Battery for Renewable Energy and Electric Vehicles (Icb-Rev) 2022

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Design and optimization of CSP power plants for Pakistan: a comparative study

Liaqat

Ordóñez

2023

Clean Energy

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Despite having very high solar irradiance, Pakistan still does not have any installed concentrated solar power (CSP) plant. Several studies have shown that multiple locations within the country are suitable for CSP plants, but there is limited availability of comprehensive comparative studies. Therefore, this article presents a comparative analysis of different CSP technologies in Pakistan, focusing on their potential to address the country’s energy crisis. The study evaluates the pros and cons of different CSP technologies at various locations through site assessment, modelling, optimization and economic analysis using the System Advisor Model. Quetta and Nawabshah were selected as the locations for modelling multiple scenarios of 100-MW plants, using central receiver systems, parabolic trough collectors and linear Fresnel reflectors. The plants were integrated with thermal energy storage and the storage capacity was optimized using parametric analysis. The results showed that a central receiver system for the location of Quetta was the most favourable option, with an annual energy yield of 622 GWh at 7.44 cents/kWh, followed by a central receiver system for Nawabshah (608 GWh, 9.03 cents/kWh). This study is the first to show that switching between line-concentrated and point-concentrated CSP technologies can open new opportunities for sites in Pakistan with relatively high solar resources, resulting in a 21.3% reduction in the levelized cost.

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Solar Field Layout and Aimpoint Strategy Optimization

Abstract: Department of Energy (DOE) reports produced after 1991 and a growing number of pre-1991 documents are available free via www.OSTI.gov.

Cited by 3 publications

References 28 publications

Static optimal control: A closed-loop control strategy for heliostat aiming in solar power towers

Static optimal control: A closed-loop control strategy for heliostat aiming in solar power towers

Performance assessment of Pakistani central receiver plant case study using aimpoint strategy optimization tools

Design and optimization of CSP power plants for Pakistan: a comparative study

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