The length of the rear column of the photovoltaic double-layer bracket

What rack configurations are used in photovoltaic plants?

The most used rack configurations in photovoltaic plants are the 2 V × 12 configuration (2 vertically modules in each row and 12 modules per row) and the 3 V × 8 configuration (3 vertically consecutive modules in each row and 8 modules per row). Codes and standards have been used for the structural analysis of these rack configurations.

Does a bifacial PV module receive more sunlight?

A model is presented for estimating the rear side irradiation of a single bifacial PV module. The measurements show that the top and bottom back of the module receives more sunlight than the middle part due to the shading. The model is based on the isotropic sky model of Liu and Jordan.

What is a new cable supported PV structure?

New cable supported PV structures: (a) front view of one span of new PV modules; (b) cross-section of three cables anchored to the beam; (c) cross-section of two different sizes of triangle brackets. The system fully utilizes the strong tension ability of cables and improves the safety of the structure.

What affects the gap between photovoltaic modules in the north-south direction?

(iv) The gap between the photovoltaic modules in the North–South direction is affected by the longitudinal spacing for maintenance, and it gives rise to a smaller influence of the parameter length of the rack configuration on the number of photovoltaic modules that can be installed in that direction.

What is a PV support structure?

Support structures are the foundation of PV modules and directly affect the operational safety and construction investment of PV power plants. A good PV support structure can significantly reduce construction and maintenance costs. In addition, PV modules are susceptible to turbulence and wind gusts, so wind load is the control load of PV modules.

How is bifacial PV module energy yield calculated?

The energy yield of the bifacial PV module is calculated by using the presented model and by a modified yield calculation scheme. The model applies to any installation/site conditions, and the model does not require high computational power, unlike its predecessors.