A simulation model of a 500 kW PV power system with LVRT control was established in MATLAB/Simulink, as shown in Fig. 7, to verify the effectiveness of the proposed parameter testing method. The topology and
Obviously, dual-axis tracker systems show the best results. In [2], solar resources were analysed for all types of tracking systems at 39 sites in the northern hemisphere covering
The solar photovoltaic bracket is a kind of support structure. In order to get the maximum power output of the whole photovoltaic power generation system, we usually need to fix and place the solar panels with a
2.1. Lightning Current Responses in Photovoltaic (PV) Bracket System A PV bracket system is typically constructed by a series of tilted, vertical and horizontal conductor branches as shown
In the solar photovoltaic power station project, PV support is one of the main structures, and fixed photovoltaic PV support is one of the most commonly used stents. For the the actual demand
25m C-type photovoltaic bracket equipment. Equipment technical parameters (gear box universal joint gantry arch type): 1.Shaft diameter 80mm, 40Cr quenching and tempering treatment;
A two axis (azimuth and zenith/ or elevation movement) PV solar tracker structure (see Fig. 1) is an electromechanical device for given 12.8 kW (with 90 m2 maximum surface of PV modules).
In terms of finite element analysis, Wittwer et al., obtained modal parameters of the tracking photovoltaic support system with finite element analysis, and the results are similar to those of this study, indicating that the natural frequencies of the structure remain largely unchanged.
Through processing and analyzing the measured modal data of the tracking photovoltaic support system with Donghua software, the dynamic characteristic parameters of the tracking photovoltaic support system could be obtained, including frequencies, vibration modes and damping ratio.
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 %.
Additionally, consistently low modal damping ratios were measured, ranging from 1.07 % to 2.99 %. Secondly, modal analysis of the tracking photovoltaic support system was performed using ANSYS v2022 software, resulting in the determination of structural natural frequencies and mode shapes.
While significant progress has been made by scholars in the exploration of wind pressure distribution, pulsation characteristics, and dynamic response of tracking photovoltaic support system, there is a notable gap in the literature when it comes to modal analysis of tracking photovoltaic support system.
The comparison of the mode shapes of tracking photovoltaic support system measured by the FM and simulated by the FE (tilt angle = 30°). The modal test results indicated that the natural vibration frequencies of the structure remains relatively constant as the tilt angle increases.
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