Egea-alvarez, A.; Aragües-Peñalba, M.; Gomis-Bellmunt, O.; Rull-Duran, J.; Sudria-Andreu, A. "Sensorless control of a power converter for a cluster of small wind turbines" IET Renewable Power Generation 10, 5, pp. 721 - 728. 2016 DOI: 10.1049/iet-rpg.2015.0036