RT Journal Article T1 Centralized MPPT Controller System of PV Modules by a Wireless Sensor Network A1 Delgado Martín, Aránzazu A1 Cano, Juan M. A1 Medina García, Jonathan A1 Gómez Galán, Juan Antonio A1 Rodríguez Vázquez, Jesús AB An efficient monitoring and control system for solar photovoltaic modules, which combinesthe use of a non-linear MPPT backstepping controller with a custom wireless sensor network (WSN) hasbeen developed. The infrastructure consists of a wireless smart photovoltaic system (WSPS) and a wirelesscentralized control system (WCC). The data of sensing, coordination and control is handled by using a WSNbased on IEEE 802.15.4 technology in beacon enable mode and with guaranteed time slot. This assuresthe data transmission and a synchronous acquisition, which are critical elements in a wireless photovoltaicmonitoring system. All measured data is gathered by an autonomous, compact and low-cost sensor nodeinstalled in each PV module, and it is transferred to the coordinator node. The power consumption of thesensor node represents only 0.25% of the power delivered by the photovoltaic module. A backsteppingcontroller to track the Maximum Power Point (MPP) by means of a buck-boost converter derives the referenceparameters to return to each PV module accordingly. The wireless solution uses low latency techniques toachieve a real-time monitoring and a stable performance of the controller. The centralized control identifiesall the network nodes and significantly simplifies the maintenance operations. Experimental validation showsthe robustness against interference and security in the wireless data transmission and confirms the feasibilityof the proposed wireless sensor system in tracking the maximum power transfer under different weatherconditions, achieving an efficiency over the 99% in the MPPT. PB Institute of Electrical and Electronics Engineers (IEEE) SN 2169-3536 YR 2020 FD 2020-04 LK http://hdl.handle.net/10272/18313 UL http://hdl.handle.net/10272/18313 LA eng NO Delgado Martín, A., Cano, J. M., Medina García, J., Gómez Galán, J. A., Rodríguez Vázquez, J. (2020). Centralized MPPT Controller System of PV Modules by a Wireless Sensor Network. IEEE Access, 8, 71694–71707. DOI: https://doi.org/10.1109/access.2020.2987621 DS Repositorio Institucional de la Universidad de Huelva RD 30 may 2026