| 摘要 |
A Photovoltaic panel support base rotating simultaneously around two axes, i.e. around an horizontal axis (North-South direction) for the continuous correction of the swivel angle (β), and around a vertical axis (East-West direction) for the continuous correction of the hour angle (ω), the solar deviation (δ) and the azimuthal surface (γ). The assembly comprises the tower (1), the base (2) with round profile, used for the anchorage and the seat of the assembly, the first drive mechanism (3) with ball bearings (16) for the rotation of the upper part around a vertical axis, the cantilevers' support assembly (4) of V shape, the rod (5), the second mechanism (7) for the rotation of the photovoltaic panels plane around an horizontal axis, the rotation axis (6) of the photovoltaic panels plane, the beams (8) of changing thin walled profile H and the series of transverse thin walled beams (9) of U profile. The frames of the photovoltaic panels rest on the frame formed by the U-shaped beams. The strong wind which falls at the photovoltaic panel plane is received and transmitted to the inner part of the construction, from one hand by the beams assembly (8) of shape H and from the other by the V-shaped assembly of the cantilevers (4). The strong forces' flow to the increasing profiles of the two assemblies (8) and (4) significantly decreases their strength to the inner part of the construction and as a result the two rotating drive mechanisms (3) and (7) substantially receive minimum dynamic stressing having the form of contact voltages (Hertz) created to their ball bearings (16). The electric motors of the two rotation mechanisms are driven by means of satellite control in order for the combination ofβ,ω,δandγto provide the instantly desired result cosθ=1 orΘ=0, i.e. the incident solar radiation to always be vertical with regard to the panels plane. |
