In the last decade, the energy industry has taken a great social, environmental and economic impact due to the exponential increase in the use of fossil fuels. World governments have come to the conclusion that it is necessary to promote research and development of renewable energy technologies for their global exploitation. The energy potential of the Sun is shown as one of the most adaptable alternatives for domestic and industrial uses. Several mathematical models of direct solar radiation have been carried out using various solar tracking strategies; The importance of these systems lies in optimizing the amount of solar radiation in any type of collector. In this research work, the mathematical analysis of incident solar radiation on a flat surface is proposed using MATLAB of various solar tracking schemes in clear sky conditions for the geographical coordinates and climatological conditions of the city of Zacatecas. When comparing the different cases of solar tracking, the following is observed: (a) More solar radiation reaches the surfaces that comply with some sun tracking scheme per month, compared to those surfaces that do not move. (b) The surface that receives the least amount of solar radiation every month is the horizontal surface. The solar irradiation per month estimated for this case is approximately 25% below the maximum calculated value corresponding to the monitoring of heliotrope-type solar collection. Regarding the comparative analysis of the data obtained, it can be seen that: The clear sky model prepared by ESRA has a behavior very close to the data from the Zacatecas_04 Solarimetric Station, having a difference with a maximum value of 0.13% for the month of January same year.