Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/141681
Title: Maximum power point controller for large-scale photovoltaic power plants using central inverters under partial shading conditions
Authors: Karanayil, Baburaj
Ceballos, Salvador
Pou, Josep
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2018
Source: Karanayil, B., Ceballos, S., & Pou, J. (2019). Maximum power point controller for large-scale photovoltaic power plants using central inverters under partial shading conditions. IEEE Transactions on Power Electronics, 34(4), 3098-3109. doi:10.1109/TPEL.2018.2850374
Journal: IEEE Transactions on Power Electronics
Abstract: The central inverter topology based on three-level converters is widely used in large-scale photovoltaic (PV) power plants because of its simple and reliable structure and high efficiency. However, when two PV arrays are connected in series for higher dc-link voltage, the single maximum power point tracking (MPPT) operation cannot function properly when there is partial shading between the arrays. This paper presents a configuration where the two PV arrays are connected in series together with an auxiliary power converter feeding a neutral-point-clamped central inverter. This configuration ensures maximum power production from both PV arrays during partial shading conditions, achieving the MPPT operation for both PV arrays. The proposed converter together with their controls are verified by simulation and experiment.
URI: https://hdl.handle.net/10356/141681
ISSN: 0885-8993
DOI: 10.1109/TPEL.2018.2850374
Schools: School of Electrical and Electronic Engineering 
Rights: © 2018 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. The published version is available at: https://doi.org/10.1109/TPEL.2018.2850374.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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