Flexible photovoltaic support with different types of horizontal load-bearing components is calculated. The mechanical characteristics of three types of horizontal load
Therefore, only three variable parameters of the PV panels array: inclination angle (θ, Kopp et al., 2012;Kaplani and Kaplani and Kaplanis, 2014;Hu et al., 2016), row spacing (R in, Shah et al
The results show that: (1) according to the general requirements of 4 rows and 5 columns fixed photovoltaic support, the typical permanent load of the PV support is 4679.4 N, the wind load being 1
For those newly developed cable-suspended photovoltaic systems, there are few studies regarding their wind effects. Tamura et al. They investigated the reduction factor for a beam-column support PV array with a
The results show that: (1) according to the general requirements of 4 rows and 5 columns fixed photovoltaic support, the typical permanent load of the PV support is 4679.4 N, the wind load
The prototype structure of the flexible PV support adopted in this study is shown in Fig.1. The height of the columns is 6 m. The span of the flexible PV support is 33 m, which is consisted of
The present invention provide a kind of space availability ratio is high, rolled steel dosage is few, easy for installation, manpower and materials less investment, be easy to construction without
The tracking photovoltaic support system consisted of 10 pillars (including 1 drive pillar), one axis bar, 11 shaft rods, 52 photovoltaic panels, 54 photovoltaic support purlins, driving devices and 9 sliding bearings, and also includes the connection between the frame and its axis bar. Total length was 60.49 m, as shown in Fig. 8.
Key findings are as follows. Dynamic characteristics of tracking photovoltaic support systems obtained through field modal testing at various inclinations, revealing three torsional modes within the 2.9–5.0 Hz frequency range, accompanied by relatively small modal damping ratios ranging from 1.07 % to 2.99 %.
Because the support structure of the tracking photovoltaic support system has a long extension length and the components are D-shaped hollow steel pipes, the overall stiffness of the structure was found to be low, and the first three natural frequencies were between 2.934 and 4.921.
This suggests that the deflection of the flexible PV support structure is more sensitive to fluctuating wind loads compared to the axial force. Considering the safety of flexible PV support structures, it is reasonable to use the displacement wind-vibration coefficient rather than the load wind-vibration coefficient.
Currently, most existing literature on tracking photovoltaic support systems mainly focuses on wind tunnel experiments and numerical simulations regarding wind pressure and pulsation characteristics. There is limited research that utilizes field modal testing to obtain dynamic characteristics.
In the photovoltaic (PV) solar power plant projects, PV solar panel (SP) support structure is one of the main elements and limited numerical studies exist on PVSP ground mounting steel frames to be a research gap that has not be addressed adequately in the literature.
