[HTML][HTML] Review of heliostat calibration and tracking control methods

JC Sattler, M Röger, P Schwarzbözl, R Buck, A Macke… - Solar Energy, 2020 - Elsevier
Large scale central receiver systems typically deploy between thousands to more than a
hundred thousand heliostats. During solar operation, each heliostat is aligned individually in …

Sources of solar tracking errors and correction strategies for heliostats

M Maiga, KE N'Tsoukpoe, A Gomna… - … and Sustainable Energy …, 2024 - Elsevier
Heliostat fields represent the primary energy input for concentrating solar-thermal power
based on power tower technology. They typically account for 40%–50% of the …

Direct tracking error characterization on a single-axis solar tracker

F Sallaberry, R Pujol-Nadal, M Larcher… - Energy Conversion and …, 2015 - Elsevier
The solar trackers are devices used to orientate solar concentrating systems in order to
increase the focusing of the solar radiation on a receiver. A solar concentrator with a …

A novel integrated simulation approach couples MCRT and Gebhart methods to simulate solar radiation transfer in a solar power tower system with a cavity receiver

K Wang, YL He, Y Qiu, Y Zhang - Renewable Energy, 2016 - Elsevier
An integrated simulation approach, which couples Monte Carlo ray tracing (MCRT) and
Gebhart methods, is proposed to simulate solar radiation transfer in a solar power tower …

Real-time heliostat field aiming strategy optimization based on reinforcement learning

Z Zeng, D Ni, G Xiao - Applied Energy, 2022 - Elsevier
The heliostat field aiming strategy optimization is a crucial topic in solar power tower (SPT)
plants. The optimal aiming strategy attempts to maximize the thermal power output while …

Optical losses due to tracking error estimation for a low concentrating solar collector

F Sallaberry, AG de Jalón, JL Torres… - Energy Conversion and …, 2015 - Elsevier
The determination of the accuracy of a solar tracker used in domestic hot water solar
collectors is not yet standardized. However, while using optical concentration devices, it is …

[HTML][HTML] Drift analysis in tilt-roll heliostats

A Martínez-Hernández, IB Gonzalo, M Romero… - Solar Energy, 2020 - Elsevier
Drift is a relevant issue in concentrated solar tower facilities since this time-dependent
pointing error severely affects their performance. This work deals with the optical analysis of …

Optimization of robust aiming strategies in solar tower power plants

P Richter, F Kepp, C Büsing, S Kuhnke - AIP Conference Proceedings, 2019 - pubs.aip.org
In solar tower power plants aiming strategies are used to distribute the heat flux on the
receiver surface. An optimal strategy maximizes the mass flow while avoiding thermal …

Influence of receiver surface spectral selectivity on the solar-to-electric efficiency of a solar tower power plant

F Larrouturou, C Caliot, G Flamant - Solar Energy, 2016 - Elsevier
The spectral selectivity results in increasing the absorption of the incident solar flux and
decreasing the radiative losses due to emission of heated walls. This study investigates the …

Evaluation and measurement of heliostat misalignment in solar power plant using vector model

E Carretero, J Preciado, I Salinas, I Ayora, C Heras - Optics Express, 2019 - opg.optica.org
Heliostat alignment evaluation is among the main issues in solar tower concentration plant
operation and maintenance. This paper describes a novel method used to evaluate heliostat …