RT Journal Article
T1 Maximum Power Point Controller for Large-Scale Photovoltaic Power Plants Using Central Inverters under Partial Shading Conditions
A1 Karanayil, Baburaj
A1 Ceballos, Salvador
A1 Pou, Josep
AB 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.
SN 0885-8993
YR 2019
FD 2019-04
LK https://hdl.handle.net/11556/4346
UL https://hdl.handle.net/11556/4346
LA eng
NO 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 , vol. 34 , no. 4 , 8395383 , pp. 3098-3109 . https://doi.org/10.1109/TPEL.2018.2850374
NO Publisher Copyright: © 2018 IEEE.
NO Manuscript received November 15, 2017; revised February 22, 2018 and June 5, 2018; accepted June 20, 2018. Date of publication June 24, 2018; date of current version February 20, 2019. This work was supported in part by the Basque Country Government under the project KK-2018/00040 ENSOL. Recommended for publication by Associate Editor V. Agarwal. (Corresponding author: Baburaj Karanayil.) B. Karanayil is with the School of Electrical Engineering and Telecommunications, UNSW Sydney, Sydney, NSW 2052, Australia (e-mail:, baburaj@ ieee.org).
DS TECNALIA Publications
RD 28 jul 2024