A Novel T-C-T Solar Photovoltaic Array Configurations using Rearrangement of PV Modules with Shade Dispersion Technique for Enhancing the Array Power
V. Bala Raju1, Ch. Chengaiah2
1V. Bala Raju, Research Scholar, Department of EEE, SVU College of Engineering, SV University, Tirupati (Andhra Pradesh), India.
2Dr. Ch. Chengaiah, Professor, Department of EEE, SVU College of Engineering, SV University, Tirupati (Andhra Pradesh), India.
Manuscript received on 13 February 2020 | Revised Manuscript received on 20 February 2020 | Manuscript Published on 28 February 2020 | PP: 68-78 | Volume-8 Issue-5S February 2020 | Retrieval Number: E10180285S20/2020©BEIESP | DOI: 10.35940/ijrte.E1018.0285S20
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Total-Cross-Tied (TCT) solar array configuration has more output power under uniform irradiance condition (un-shade case) among all conventional solar photovoltaic (SPV) array configurations but reduced array power under non-uniform irradiance cases (shading cases). To improve the performance of TCT array configuration under shading cases by using rearrangement or repositioning of existing photovoltaic (PV) modules in TCT configuration to new optimal locations within a TCT array configuration with shade dispersion technique. In this rearranged method, repositioning the modules based on puzzle pattern without altering the electrical connections among modules in an SPV array. The shading on PV modules are dispersed by changing the position of PV modules to optimal locations within SPV array so the performance of conventional TCT configuration will be improved. In this paper proposed an optimal TCT configurations, it requires a minimum number of electrical connections or ties between array modules and it depends on the shaded modules location in SPV array and also the proposed method reduces the wiring losses, mismatch losses. For this analysis, MATLAB/Simulink software is used for modeling and simulation of 6×6 size different rearrangement based TCT and proposed optimal SPV array configurations under one un-shaded case and fourteen different shading cases.
Keywords: PV Modules, Array Power, Optimal Interconnections, Wiring Losses, Partial Shading Cases, Shaded Modules.
Scope of the Article: Low-power design