Comprehensive investigation of various bypass diode associations for killer-SuDoKu PV array under several shading conditions

Anurag Singh Yadav and V. Mukherjee

Energy, 2022, vol. 239, issue PB

Abstract: This paper investigates the electrical behavior of total cross tied (TCT), SuDoKu (SDK) and killer-SDK (KSDK) configurations under several shading conditions. Three different types of bypass diode (BD) arrangements for these PV arrays (PVAs) have been reported and the considered different BD arrangements are without BD (WBD), non-overlapped BD (NBD) and overlapped BD (OBD). Due to the occurrence of shading situations, the investigation of excess current for various BD based PVA configurations has been carried out. In the present work, maximum prospecting values of excess current for PV modules and arrays are also reported. Moreover, comparative analysis between WBD, NBD and OBD based PVA configurations has been presented using P–V and I–V characteristics. Also, investigation has been extended in terms of reduction of excess current, power dissipation, power improvement, energy savings and earnings. The presented results may be used as a suggestion for appropriate BD interconnection for the chosen PVA configurations. Overall, it is reported in this article that the NBD based KSDK PVA configuration is superior to WBD, OBD and NBD based TCT and SDK PVA configurations.

Keywords: Bypass diode (BD); Non-overlapped BD; Overlapped BD; PV arrays; Without BD (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:239:y:2022:i:pb:s0360544221022623

DOI: 10.1016/j.energy.2021.122014

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