Abstract
The extraction of maximum power is a big challenge in solar photovoltaic-based power plants due to varying atmospheric and meteorological parameters. The concept of array reconfiguration is applied for the maximum power extraction in solar PV plants. Using this approach, the occurrence of multiple peaks in P-V and I-V characteristics during partial shade can be smoothened and reduced significantly. Partial shading due to the movement of the cloud is considered in the research. The cloud movement mainly because of velocity and wind direction is used for creating various shading conditions. The main focus is to reduce the power losses during partial shading using a nature-inspired optimization approach to reconfigure the array for different types of shading conditions. A grey wolf optimizer-based bridge-linked total cross-tied (GWO-BLTCT) configuration is proposed in this paper. The performance of the proposed topology is compared with standard and hybrid topologies, namely, series-parallel, total cross-tied, BLTCT, and SuDoKu-BLTCT, based on performance indicators such as fill factor, performance ratio, power enhancement, and power loss. The proposed GWO-BLTCT outperforms the remaining topologies due to the least power loss and high fill factor. It also has the highest average power enhancement and performance ratio with 23.75% and 70.02% respectively.
Highlights
In this era, comfort level and convenience are the basic requirements of human beings and should not be compromised at any level
The performance of the various configurations namely, SP, total cross-tied (TCT), bridge-linked total cross-tied (BLTCT), SDK-BLTCT, and GWO-BLTCT is evaluated at four different conditions of partial shade
These shading conditions define the movement of clouds and different types of shadows long narrow narrow (LN), long wide (LW), short wide (SW), and short narrow (SN) on the 5 × 5 PV array configuration
Summary
Comfort level and convenience are the basic requirements of human beings and should not be compromised at any level. The primary goal of sustainable design is the reduction in the depletion of critical resources, minimizing environmental degradation, and promoting a built environment that is safe, efficient, and productive These sustainable developments are achieved by promoting the use of renewable energy and developing infrastructure for the vertical expansion of the urban landscape. EAR techniques are the dynamic reconfiguration technique requiring sensors to determine the partial shading and faulty conditions, whereas, in PR methods fixed interconnection of the PV modules is performed according to the physical location. R. Venkateswari et al had proposed Lo Shu arrangement for physical reconfiguration of PV array for different types of shading conditions [22]. Tors used for comparative analysis are power loss, FF, PR, and PE
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