Investigation report on photovoltaic panel high wind accident

Do different roof types affect the net wind load of PV panels?

Different roof types cause different flow patterns around PV panels, thus change the flow mechanism exerted on PV panels. In this study, the effects of roof types, heights and the PV array layouts on the net wind loads of the PV panel is investigated.

How does wind load affect PV panel support?

2. Influencing Factors of Wind Load of PV Panel Support 2.1. Panel Inclination Angle The angle β between the PV panel and the horizontal plane is called the panel inclination (Figure 3). Because of the PV panel’s varying inclination angle, a PV power generation system’s wind load varies, impacting the system’s power generation efficiency. Figure 3.

Do roof-mounted PV arrays influence wind loads?

The wind loads of the PV array were influenced significantly by the PV panel tilt angle and the PV array setback from the roof leading edge. The wind flow mechanism related to the wind loads of the roof-mounted PV array was researched by Kopp et al. (2012) taking into consideration of two panel tilt angles.

What are the main wind load issues associated with PV supports?

Making full use of the previous research results, the following are the main wind load issues associated with the three types of PV supports: (1) the factors affecting the wind loads of PV supports—the main factors are shown in Figure 2; (2) the wind-induced vibration of PV supports; (3) the value and calculation of the wind load of a PV support.

Are photovoltaic power generation systems vulnerable to wind loads?

(1) Background: As environmental issues gain more attention, switching from conventional energy has become a recurring theme. This has led to the widespread development of photovoltaic (PV) power generation systems. PV supports, which support PV power generation systems, are extremely vulnerable to wind loads.

What causes maximum wind uplift on PV panels?

The uplift on the PV panels is resulted from the interaction between the building-generated turbulence and the PV panels. Different roof types cause different types of flow pattern surrounding the PV panels, thus change flow mechanism of the maximum wind uplift on PV panels.