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A study into the impact of the choice of Maximum Power Point Tracking Technique on the reliability of the power electronics interface for photovoltaic systems

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Lyden, S ORCID: 0000-0002-5364-6011 and Ji, T 2020 , 'A study into the impact of the choice of Maximum Power Point Tracking Technique on the reliability of the power electronics interface for photovoltaic systems', in M Negnevitsky (ed.), Proceedings from the 2020 Australasian Universities Power Engineering Conference (AUPEC) , IEEE-Inst Electrical Electronics Engineers Inc, Australia, pp. 1-5 .

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Abstract

Photovoltaic (PV) systems are becoming increasingly common as residential distributed generators, however these systems can be severely limited by the presence of partial shading conditions (PSC). When bypass diodes are installed in the system to mitigate the impact of PSC, the Power-Voltage (P-V) characteristics become more complex and multiple maxima are observed. This has necessitated the development of advanced Maximum Power Point Tracking (MPPT) techniques. Advanced MPPT techniques can increase power capture under PSC, however their impact on the reliability of power electronics interfaces is not yet fully understood. This paper will present a preliminary study into the reliability implications of the choice of MPPT method on diodes in a power electronics interface. The preliminary results indicate that the choice of MPPT method may affect the reliability of the power electronics interface as evidenced through large changes in the simulated junction temperature of the diode due to power losses.

Item Type: Conference Publication
Authors/Creators:Lyden, S and Ji, T
Keywords: MPPT, photovoltaic, reliability
Journal or Publication Title: Proceedings from the 2020 Australasian Universities Power Engineering Conference (AUPEC)
Publisher: IEEE-Inst Electrical Electronics Engineers Inc
Copyright Information:

Copyright 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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