General information.

The purpose of the object is the production of electrical energy based on the photoelectric conversion of solar radiation energy into electrical energy. The output of SES power to the power system is carried out on the 10 kV SES buses and then through the 10 kV KRU buses and the SES block transformer 110/10/10 kV to the power system. Installed electric power - 5 MW. The principle of operation of photovoltaic solar modules (PSM) is that particles of electromagnetic radiation (photons) fall on the surface of a solar photocell. If the energy of a photon is less than the band gap energy, then it weakly interacts with the conductor. In the event that the energy of a photon is higher than the band gap energy, it interacts with electrons that have a covalent bond. Using its own energy, the photon breaks the bond and creates an electron-hole pair. In other words, photons activate the mutual movement of electric charges in the negative n-layer and the positive p-layer. As a result, an uncompensated negative charge is formed in the boundary zone of the p-layer, and an uncompensated positive charge is formed in the boundary zone of the n-layer. Thus, a p–n junction is formed. The resulting potential difference in the p–n junction causes a photoelectromotive force, as a result of which a direct electric current is supplied to the consumer device connected to the upper and lower contacts of the solar photocell. Block-modular inverter installations (BMIU) are used to convert the direct current of photovoltaic solar modules into three-phase alternating current. For the issuance of the generated energy to the adjacent power system, the project provides for the laying of a 10 kV cable from the BMIU across the territories of the solar power plant to the 10 kV switchgear of the solar power plant. The technological process of solar power plant operation is based on the use of solar radiation energy. The technological process is divided into the following stages: Converting the energy of solar radiation into electrical energy; Assembly of the FSM connection scheme into strings; Transfer of electrical energy from strings to adders; Transmission of electrical energy from adders to BMIU; Converting direct current to alternating three-phase voltage of 380 V; Voltage increase from 380 V to 10000 V; Transmission of electricity with a voltage of 10 kV to KRU 10 kV.