RT Journal Article T1 Data-driven voltage control for dual-mode power regulation in small wind turbines T2 Control de tensión basado en datos para la regulación de potencia en pequeñas turbinas eólicas de modo dual A1 Clavijo Camacho, Jesús A1 Sánchez Herrera, María Reyes A1 Ruiz Rodríguez, Francisco Javier A1 Pérez Torreglosa, Juan K1 Power control management, MPPT, Power curtailment, Small wind turbines, DC-DC boost converter AB Wind energy is a key renewable resource for sustainable power generation, with small-scale Wind Energy Conversion Systems (WECS) playing an increasingly important role in distributed generation. This paper presents a novel sensorless, voltage-based power control strategy for small wind turbines equipped with Permanent Magnet Synchronous Generators (PMSG), enabling operation in different modes: Maximum Power Point Tracking (MPPT) or dynamic power curtailment. The proposed method uses predefined Lookup Table (LUT)- based characterization, mapping wind speed, generator voltage, and power output, allowing real-time selection of the optimal voltage reference depending on the controller's mode. The control is implemented through a cascaded PI-based structure, regulating power delivery by adjusting the generator's electrical load via a DC-DC boost converter. The system supports three modes for variable wind speed: (1) extracting maximum available power (MPPT), (2) maintaining a percentage of power reserve, or (3) regulating active power delivery. This flexibility enables the system to adapt to external demands, whether for grid support or standalone operation. The method is validated through simulation and experimental testing, demonstrating stable operation, fast response to setpoint changes, and scalability to higher power levels. These results confirm the feasibility of integrating small wind turbines into ancillary services, enhancing their role in grid-support applications. PB Elsevier SN 1873-6785 (electrónico) SN 0360-5442 SN 1873-6785 (electrónico) YR 2026 FD 2026 LK https://hdl.handle.net/10272/27906 UL https://hdl.handle.net/10272/27906 LA eng NO Clavijo-Camacho, J., Herrera, R. S., Ruiz-Rodriguez, F. J., & Torreglosa, J. P. (2026). Data-driven voltage control for dual-mode power regulation in small wind turbines. Energy, 346, 140252. https://doi.org/10.1016/j.energy.2026.140252 NO This research was supported by the grant PID2020-117828RB-I00 "Integral control system to optimize the microgrids energy demand" funded by MICIU/AEI/10.13039/501100011033 and, by “Spanish Ministry of Science, Innovation and Universities. In addition, the author Jesus Clavijo-Camacho is enjoying a INVESTIGO research fellowship funded by the European Union - NextGenerationEU. Funding for open access charge: Universidad de Huelva / CBUA. DS Repositorio Institucional de la Universidad de Huelva RD 30 may 2026