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Calculation method of wind load for photovoltaic power generation

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1 School of Electrical Engineering, Northeast Electric Power University, Jilin City, China; 2 China Electric Power Research Institute, Nanjing, China; To accurately evaluate the influence of the uncertainty and correlation

Calculation method of wind load for photovoltaic power generation [PDF]

6 FAQs about [Calculation method of wind load for photovoltaic power generation]

How is wind load calculated in a PV structure?

The loads applied to the design of PV structures were described earlier. In the structural design of the PV structure, the wind load is assumed to be applied in the horizontal direction, and the basic assumption is that it is calculated by considering the projected area of the structure [ 11, 12 ].

How is wind load evaluated in a PV power plant?

Wind load is evaluated as relatively low because only the projected area in the horizontal direction is considered in the design standard. Therefore, the wind load applied to all arrays of the PV power plant was evaluated through the CFD analysis.

Why is wind load important for a Floating photovoltaic system?

The wind load is especially important for floating photovoltaic systems. Fig. 2, a floating photovoltaic system is above the sea or a lake. A floating body supports the solar panels by the buoyancy force, which is balanced with the weights of the solar panel and itself.

What is the wind loading over a solar PV panel system?

Jubayer and Hangan (2014) carried out 3D Reynolds-Averaged Navier–Stokes (RANS) simulations to study the wind loading over a ground mounted solar photovoltaic (PV) panel system with a 25 ° tilt angle. They found that in terms of forces and overturning moments, 45 °, 135 ° and 180 ° represents the critical wind directions.

What is the wind load distribution of PV modules?

Based on the numerical analysis, the wind load distribution of PV modules can be characterized with respect to the inlet angle and wind speed. The numerical results show that the wind loads in the central arrays are dominant. 1. Introduction

How is wind load determined?

In particular, wind load is determined based on the numerical analysis results. The literature indicates that several input parameters exist, such as inlet angle and space between PV modules. An exemplary structure with ten arrays of PV modules was generated in this study.

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