Solar container system field pattern analysis report

Does tracking photovoltaic support system have a modal analysis?

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.

What are the dynamic characteristics of the tracking photovoltaic support system?

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.

What is the power spectrum of a tracking photovoltaic support system?

The power spectrum of the tracking photovoltaic support system exhibits a peak valueat the corresponding i-th characteristic frequency, with an amplitude of A. The sum of and is the frequency value of the amplitude before and after the characteristic frequency of, which is called the half power point.

Does a tracking photovoltaic support system have finite element analysis?

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.

How many torsional modes does a tracking photovoltaic support system have?

Additionally, we propose a finite element analysis method for modal analysis of tracking photovoltaic support systems, which yielded four torsional modes within the 2.8–7.0 Hz frequency range. The first three modes of this analysis closely align with field modal test results.

What are the dynamic characteristics of photovoltaic support systems?

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 %.