93 Figure 1 below shows the design of one section of a trimaran-type floating structure, developed on the basis of the adopted assumptions. This section consists of 10 panels and measures 6 m x 5 m. The maximum permissible snow load of 0.5 kN/m² and wind load of 22 m/s were adopted. Due to the working environment and minimal shading, the buoyancy section occupies only 30% of the total surface area of the floating section. The connections between sections are made using rubber connectors. Depending on the shape of the reservoir, its depth, and location on the water, the entire PV farm is stabilized to the bottom or to the banks using composite rods and ties. Figure 1 – View of a single floating section with panels 2.2 Electrical part The PV farm's electrical installation was designed to optimize electricity generation from photovoltaic panels. The entire system was integrated into the power grid using SWET and EMS. An additional element of the system is the ESS – energy storage system, whose task is to stabilize energy generation from photovoltaics and power the single-wire line of the SWET system. The sections with fixed panels have been integrated with 150 kWp inverters, while each platform with a tracker has an individual 5 kWp inverter. For trackers to work properly, they need to work with an extra automation system that controls individual actuators and handles communication using LoRa technology. The EMS housed in a container located on the shore, is powered by a three-phase 3×400 V AC installation, with the receivers distributed across individual phases in order to balance the load. In the first phase, a single-phase 1200 VA UPS system was installed to maintain power to the control and communication circuits. The second phase is designed to power the container's air conditioning, while the third phase should power other receivers that do not require continuous access to electricity in the event of a power failure. 3. INNOVATIVE COMPOSITE SOLUTIONS 3.1 Float design The buoyancy elements currently used in the construction of floating photovoltaic farms are typically made of PE and HDPE. Steel or HDPE is mainly used for the structural part, creating compact structural modules for direct panel mounting. In order to meet environmental
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