6 天之前· 摘要: 为研究固定式光伏支架在风荷载作用下的受力性能及破坏模式,设计并制作足尺光伏支架试件,通过静力加载方式进行破坏性试验。. 结合数值模拟和理论分析,给出此固定式光伏
CHANGJI, China, Oct. 12, 2024 /PRNewswire/ — The State Grid Changji Electric Power Supply Company is strongly committed to the development of renewable energy. To date, JiMusar
<sec> Introduction In order to obtain the optimal structural layout scheme for photovoltaic supports in the road domain of the transportation and energy integration project,
The government rebate has become one of the important drivers for implementing the photovoltaic (PV) system. However, it is not as effective for the multi-family housing complexes (MFHCs) in South
September 16, 2015 Changji EGing Crystal Material Technology Co., Ltd. - Sapphire Crystal Material Production Project started; September 16, 2015, the 100MW "Fish and Light
The company can provide customers with services from R&D, design to system integration of photovoltaic support. Double column fixed support EFD series Details >> Single column fixed
With the rapid deployment of silicon solar photovoltaic (PV) technologies around the world, the volume of end-of-life (EoL) PV modules will increase exponentially in the next decade. Different EoL management
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 %.
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.
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.
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.
Moreover, the variations in inclination of tracking photovoltaic support systems had minimal impact on their natural frequencies, as the increase in natural frequency magnitude across different inclinations remained below 1.5 %. Additionally, consistently low modal damping ratios were measured, ranging from 1.07 % to 2.99 %.
To effectively evaluate the dynamic response of tracking photovoltaic support system, it is essential to perform a tracking photovoltaic support systematic modal analysis that enables a comprehensive understanding of the inherent dynamic characteristics of the structures.
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