Cicconetti, Andrea

A method for feedback control of a device (50; 150) by means of a feedback-controlled driving system (1) comprising a first shaft (2) and a second shaft (3) rotatable about a rotation axis (X) and interconnected by a torsion bar (4); a rotary electric motor (10) provided with a stator (11) and a rotor (12) connected to the first shaft (2); and sensor means (6, 7) for measuring a phase angle (Δθ) between the first shaft (2) and the second shaft (3); the method comprises, at each operating time t_i, the steps of: applying to the second shaft (3), by means of the control element (40), a control torque (Ca_i) so as to rotate the second shaft (3) by a rotation angle (θ_i) (step F1); detecting and measuring, by means of the sensor means (6, 7), the rotation angle (θ_i) and sending a relative signal to said device (50; 150) (step F2); receiving from the device (50; 150) a signal relating to an operating torque (Cr_i)) to be used on the control element (40), in particular as a function of the rotation angle (θ_i) (step F3); detecting and measuring, by means of the sensor means (6, 7), a phase angle (Δθ_i) between the first shaft (2) and the second shaft (3) and equal to a torsion angle (γ_i) of the torsion bar (4) (step F4); calculating, on the basis of the stiffness characteristics (k) of the torsion bar (4), an operating torsion angle (γr_i) necessary to apply on the control element (40) a feedback torque equal to the operating torque (Cr_i) (step F5); controlling the rotary electric motor (10) to apply on the first shaft (2) a driving torque (Cm_i) (step F6) such as to change in a subsequent time t<i+i> the phase angle (Δθ_i) to a value (Δθ_i+1) substantially equal to that of the operating torsion angle (γr_i) of the torsion bar (4) (step F7); repeating the steps from F1 to F7 for a subsequent time t i+1.

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Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

The present disclosure provides a solar photovoltaic module, which belongs to the technical field of manufacturing solar photovoltaic module. The solar photovoltaic module comprises a plurality of solar cell strings. Each solar cell string comprises a plurality of sub-cells whose edges are sequentially shingled and electrically connected, and the sub-cells are obtained by cutting an entire solar cell. In an extending direction of the solar cell string, for two adjacent sub-cells, a non-cut edge of a previous sub-cell is located above a cut edge of a subsequent sub-cell, and the non-cut edge of the previous sub-cell is located on a light-receiving side of the photovoltaic module. The photovoltaic module with this specific structure is able to effectively improve the power generation efficiency of the photovoltaic module, and also has advantages such as a short research and development cycle and a low research and development cost.

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