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gert · Member 3 Joined: 02 Jan 2015 Posts: 645

Solar Tracking with S7-1200 / S7-1500
https://support.industry.siemens.com/cs/document/109775729/
The challenge for operators of photovoltaics (PV) power plants is to achieve the highest possible energy yield with their plants. Besides selecting the right technology, the best way to increase yield is by using single-axis or dual-axis tracking systems. This application, shows various methods how you can optimally align your solar tracker in relation to the solar position.
The challenge for operators of photovoltaics (PV) power plants is to achieve the highest possible energy yield with their plants. Besides selecting the right technology, the best way to increase yield is by using single-axis or dual-axis tracking systems, which can raise the yield of PV power plants by 30 to 40 percent, depending on the location. Precise tracking of the position of the sun and alignment for different solar tracker are the basic requirements for solar power plants working with concentrated photovoltaics (CPV) or concentrated solar power (CSP).
In this application, we will use various methods to show you how you can optimally align your solar tracker in relation to the solar position.
There are Solar Position Algorithm (SPA) for the calculation of the solar position, which can be used for dual-axis solar tracking systems, and the calculation of the alignment based on the SPA for single-axis solar tracking systems.
Solar Position Algorithm (SPA)
This part describes how the Solar Position Algorithm (SPA) for calculating the solar position works based on SIMATIC hardware. SPA calculates the solar position, Azimuth and Zenith, with uncertainties equal to ±0.0003 in the period from the year -2000 to 6000. Azimuth is the horizontal direction of the sun in the sky and Zenith describes angle between the direction of gravity and the sun.
Alternatively, SPA can be simulated via PLCSIM Advanced and connected with MATLAB/Simulink. The calculated solar positions and history for one day can be shown graphically in the MATLAB/Simulink, so that the evaluation of the solar position can be done easily.
Solar Tracking with S7-1200 / S7-1500 Solar Tracking with S7-1200 / S7-1500

Solar Tracking with S7-1200 / S7-1500 Solar Tracking with S7-1200 / S7-1500

Calculation of Alignment for Single-Axis Solar Tracker
This part describes how the algorithm for calculating the alignment of single-axis solar tracker with backtracking works based on SIMATIC hardware. The sun position can be described with two angular measurement in a spherical coordinate system, Azimuth and Zenith. These two angles are converted into one angle, φ, which is align with the movement of single-axis solar tracker.

And alternatively, the calculation of alignment for single-axis solar tracker is built as a MATLAB/Simulink model for calculating the alignment history of a day with a time interval of one minute.
Solar Tracking with S7-1200 / S7-1500 Solar Tracking with S7-1200 / S7-1500

Documentation and libraries for the Solar Tracker by using the SPA-Algorithm
Documentation and libraries for the Solar Tracker Calculation of Alignment for a Single Axis

https://ulozto.net/tamhle/d21yEW9oZDrd

https://openload.cc/50sbQ4n9o7/109775729_SOLAR_SingleAxis_Matlab_v20_zip
https://openload.cc/74s7Qen5od/109775729_Solar_Tracking_2_e_png
https://openload.cc/9bscQ8ndo6/109775729_Solar_Tracking_1_e_png
https://openload.cc/DcsdQfn7ob/109775729_SOLAR_SingleAxis_TIAPV15_LIB_V10_zip
https://openload.cc/F3s0Q5n6o3/109775729_SOLAR_SPA_DOC_v20_pdf
https://openload.cc/H2s0Q4n9od/109775729_SOLAR_SingleAxis_TIAPV15.1_LIB_V10_zip
https://openload.cc/L2s1Q3n8o0/109775729_SOLAR_SPA_TIAPV16_LIB_v20_zip
https://openload.cc/N7sfQan3oa/109775729_SOLAR_SingleAxis_TIAPV16_LIB_v20_zip
https://openload.cc/V2s7Q5n4o7/109775729_SOLAR_SPA_TIAPV15_Lib_V10_zip
https://openload.cc/XdseQanco6/109775729_SOLAR_SPA_TIAPV15.1_Lib_V10_zip
https://openload.cc/Zfs0Qbn5o3/109775729_SOLAR_SingleAxis_DOC_v20_pdf
https://openload.cc/b3teQen7of/109775729_SOLAR_SPA_Matlab_v20_zip

Horejsek · Junior Joined: 18 Nov 2025 Posts: 2

Hello

Could you send me the program? Thank you

9haj · Member Joined: 15 Dec 2023 Posts: 179

9haj · Member Joined: 15 Dec 2023 Posts: 179