Abstract: A protection system protects against incident wind in a photovoltaic installation and a method protects a photovoltaic installation against damage caused by incident wind. The protection system for protecting a photovoltaic installation includes a plurality of parallel and spaced apart rows of solar trackers having a central shaft attached to supports by means of couplings and supporting photovoltaic panel; and at least one actuator device kinetically connected to the central shaft for modifying its angular position. At least one row comprises a deflecting barrier below the photovoltaic panels and between the supports, covering between 40% and 65% of the distance (D) existing between the central shaft and the ground, defining a passage (P) between the deflecting barrier and the central shaft for redirecting the incident wind.

Abstract: The solar tracker includes a pivoting assembly (2) having solar panels (3) fixed to a rotating shaft (1), a fixed structure with support elements (4, 5, 6) rotationally supporting the rotating shaft (1), a motor-reducer assembly (7) having an irreversible reducer (24) connected to the rotating shaft (1) at a motor connection point (12), and a torsional vibration damping device (8) having a moving member (9) rigidly connected to the rotating shaft (1) at a damper connection point (13) spaced apart from the motor connection point (12) and a stationary member (10) rigidly attached to the fixed structure. Both the moving member (9) and the stationary member (10) comprises elements capable to generate a magnetic field when a movement of the moving member (9) relative to the stationary member (10) occurs, resulting in a damping torque on the rotating shaft (1).