A horizontal solar tracker (1) with a configuration that ensures the transmission of the turning movement generated by the drive element to the rotating beam and to the connecting rod-crank mechanism, prevents possible breaks and weaknesses in the joining areas, and is easy to transport. It comprises at least one front rotating beam (3) and at least one rear rotating beam (12) that can turn, joined by means of a connecting rod-crank mechanism (4). A drive assembly (2) generates the turning movement in a mobile element (22). The front rotating beam (3) has a first joining sector (31) that can be coupled to the mobile element (22) and the connecting rod-crank mechanism (4) comprises a tubular portion (42) that clasps the rotating beam (3) and a second joining sector (43) that can be coupled to the mobile element (22).

A dual drive shaft solar tracker system comprises a photovoltaic (PV) structure, which includes at least one solar panel, a support structure and first and second drive shafts. The first and second drive shafts comprise first and second belt mechanisms wherein movement of the PV structure occurs by wrapping belts of the first belt mechanism onto the first drive shaft and by wrapping belts of the second belt mechanism onto the second drive shaft so as to provide a non-linear wrapping rate to accommodate the non-linearity of the belt wrapping onto the first and second drive shafts. A linkage, which ties two rows that are unbalanced in opposite directions, cancels out the imbalance as long as both rows have identical components. This allows trackers to use PV modules of any size and weight and the perfect balance is unaffected.

A dual drive shaft solar tracker system comprises a photovoltaic (PV) structure, which includes at least one solar panel, a support structure and first and second drive shafts. The first and second drive shafts comprise first and second belt mechanisms wherein movement of the PV structure occurs by wrapping belts of the first belt mechanism onto the first drive shaft and by wrapping belts of the second belt mechanism onto the second drive shaft so as to provide a non-linear wrapping rate to accommodate the non-linearity of the belt wrapping onto the first and second drive shafts. A linkage, which ties two rows that are unbalanced in opposite directions, cancels out the imbalance as long as both rows have identical components. This allows trackers to use PV modules of any size and weight and the perfect balance is unaffected.

Solar tracking installation includes first movement assembly which functionally engages with the primary axis shaft to cause rotation of the primary axis shaft around the primary axis for moving the plurality of planar modules of solar collector elements in a first rotational direction around the primary axis. The installation further includes a second movement assembly which functionally engages with the secondary movement member to cause tilting of each of the plurality of planar modules of solar collector elements around each respective pivotal mount. In this way the movement of the multitude of solar collection elements is a combination of the rotation of first movement assembly and the tilting motion caused by the second movement assembly.

Solar tracking installation includes first movement assembly which functionally engages with the primary axis shaft to cause rotation of the primary axis shaft around the primary axis for moving the plurality of planar modules of solar collector elements in a first rotational direction around the primary axis. The installation further includes a second movement assembly which functionally engages with the secondary movement member to cause tilting of each of the plurality of planar modules of solar collector elements around each respective pivotal mount. In this way the movement of the multitude of solar collection elements is a combination of the rotation of first movement assembly and the tilting motion caused by the second movement assembly.

A one-piece truss adapter for supporting single-axis trackers with truss foundations. A y-shaped structure has a pair of legs with an angularly adjustable connector for securely joining the one-piece adapter to a pair of driven screw anchors at different angular orientations. Each leg terminates in a ball-shaped connector that is received in a socket integral to a driving coupler at the head of each screw anchor. A retaining nut holds the connector in place to complete the angularly adjustable assembly.

A two-piece truss leg system for an A-frame-shaped truss foundation system for single-axis trackers. A driving coupler at the head of each screw anchor used to drive the component into the ground as well as to join the upper leg component to the screw anchor. A connecting portion of the coupler extending above a main body of the coupler is received within an open end of an upper leg component. A curved outer surface of the connecting portion enables the upper leg component to be angularly adjusted relative to the screw anchor. A channel in the connecting portions enables the upper leg component to be deformed into the channel with a crimp connecting.

A two-piece truss leg system for an A-frame-shaped truss foundation system for single-axis trackers. A driving coupler at the head of each screw anchor used to drive the component into the ground as well as to join the upper leg component to the screw anchor. A connecting portion of the coupler extending above a main body of the coupler is received within an open end of an upper leg component. A curved outer surface of the connecting portion enables the upper leg component to be angularly adjusted relative to the screw anchor. A channel in the connecting portions enables the upper leg component to be deformed into the channel with a crimp connecting.

The application provides a photovoltaic inverter system, an automatic locating method of RSDs and a fault control method thereof. The automatic locating method comprises turning off all RSDs and sampling a voltage of an output end of each RSD as a first voltage before an inverter operates; turning on any one of the RSDs and sampling a voltage of the output end of each RSD as a second voltage, determining all RSDs in a photovoltaic module string to which the RSD in a turned-on state belongs according to the first voltage and the second voltage, and repeating the above control method for any one of the RSDs outside the photovoltaic module string to which the determined RSDs belong until corresponding connection relations between all RSDs and all photovoltaic module strings are determined.

The application provides a photovoltaic inverter system, an automatic locating method of RSDs and a fault control method thereof. The automatic locating method comprises turning off all RSDs and sampling a voltage of an output end of each RSD as a first voltage before an inverter operates; turning on any one of the RSDs and sampling a voltage of the output end of each RSD as a second voltage, determining all RSDs in a photovoltaic module string to which the RSD in a turned-on state belongs according to the first voltage and the second voltage, and repeating the above control method for any one of the RSDs outside the photovoltaic module string to which the determined RSDs belong until corresponding connection relations between all RSDs and all photovoltaic module strings are determined.