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Reconfiguration of PV Arrays(T-C-T,B-L,H-C)Considering Wiring Resistance

CSEE Journal of Power and Energy Systems 2022年第5期8卷 1408-1416页

作者： kandipati rajani Tejavathu Rame Electrical and Electronics Engineering Department National Institute of Technology Andhra PradeshWest Godavari-534101India

Partial shadings on the photovoltaic(PV)array causes reduction in maximum power *** of PV arrays plays an important role in increasing the maximum power generation from PV array configurations under partial *** general,partial shadings on the PV arrays are concentrated on a group of ***,the distribution of shading over the array increases the maximum power *** paper uses a modified Sudoku pattern to increase the maximum power generation from the PV array *** PV array configurations are analyzed by considering column wiring resistance and cross ties *** modified Sudoku pattern is applied to Total-Cross-Tied(T-C-T),Bridge-Link(B-L)and Honey-Comb(H-C)configurations and their performances are analyzed under various shading patterns,such as short narrow,short wide,long narrow,long wide,middle and *** specifications,such as Global Maximum Power(GMP),Mismatch losses,Fill Factor,Efficiency are considered to see the efficacy of various PV array configurations and their *** the results,it can be concluded that reconfigured T-C-T PV array generates the highest GMP compared to other configurations under considered shading patterns.

关键词： Bridge-link efficiency fill factor global maximum power honey-comb photovoltaic array reconfiguration Sudoku Total-Cross-Tied

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Maximum Power Enhancement Under Partial Shadings Using a Modified Sudoku Reconfiguration

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CSEE Journal of Power and Energy Systems 2021年第6期7卷 1187-1201页

作者： kandipati rajani Tejavathu Ramesh the Electrical Engineering Department National Institute of Technology Andhra PradeshWest Godavari-534101India

Partial shading is one of the important factors in reducing maximum power generation from PV(Photovoltaic)*** power generation can be improved by selecting a PV array through a Total-Cross-Tied(T-C-T)***,maximum power generated from T-C-T can still be improved by distribution of shading over various *** to distribution of shading,the current entering the node increases and results in improved maximum power *** can be done effectively by using Sudoku reconfiguration *** techniques are economical,since they don’t require any sensors and switching *** technique only changes the physical location of the PV panel but the electrical connection between the panels remains the *** paper proposes a Modified Sudoku reconfiguration pattern which enhances the maximum power from the T-C-T connected PV ***,the theoretical calculation of row current and power output have been done for existing and proposed topologies under various shading *** performance of the proposed pattern has been analyzed and compared using specifications,such as Global Maximum Power(GMP),Fill Factor(FF),mismatch losses,and *** the results,it can be concluded that the Modified Sudoku reconfiguration enhances the GMP under all shading conditions.

关键词： Efficiency fill factor global maximum power point mismatch losses partial shadings PV array reconfiguration shading patterns sudoku and total-cross-tied

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A Novel Triple-tied-cross-linked PV Array Configuration with Reduced Number of Cross-ties to Extract Maximum Power Under Partial Shading Conditions

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CSEE Journal of Power and Energy Systems 2021年第3期7卷 567-581页

作者： Tejavathu Ramesh kandipati rajani Anup Kumar Panda Department of Electrical Engineering National Institute of Technology RourkelaIndia Department of Electrical and Electronics Engineering National Institute of Technology Andhra PradeshIndia

Partial shadings cause output power reduction from Photovoltaic(PV)arrays due to mismatch *** selection of PV array configurations play a vital role in maximum power *** paper proposes a novel Triple-Tied-Cross-Linked(T-T-C-L)configuration to extract maximum power with a lesser number of cross ties than a Total-Cross-Tied(T-C-T)*** performance of the proposed T-T-C-L configuration has been compared with various conventional PV array configurations,such as Series(S),Parallel(P),Series-Parallel(S-P),Bridge-Link(B-L),Honey-Comb(H-C),and T-C-T under Partial Shading Conditions(PSCs)by considering the 9×9 PV *** PSCs considered are uneven row,column,diagonal,random,short&narrow,short&wide,long&narrow,long&wide shadings and uniform half module *** measures,such as open circuit voltage,short circuit current,maximum power,voltages and currents at maximum power,mismatch losses,fill factor and efficiency have been used for performance analysis of various *** the results,it can be concluded that the performance of the proposed T-T-C-L configuration is optimal compared to other configurations.

关键词： Efficiency fill factor maximum power point mismatch losses partial shading conditions PV array configurations triple-tied-cross-linked

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