In power generation systems the synchronization of an alternator with the electrical network are an important and critical task. This paper presents the design and building of an automatic three-phase alternator synchronizer based on a low-cost open-hardware Arduino platform. The synchronization is performed by means of measuring a phase voltage of both the synchronous generator and the electrical grid; then the measured voltages are conditioned and sent to the Arduino board, which is programmed to determine the correct moment to connect the alternator to the grid. To validate the prototype, a laboratory setup has been built with the alternator driven by a commercial dc drive. The design and practical implementation of the system is proposed as a project-based learning (PBL) activity for undergraduate final year students at the University of Bío-Bío, Chile. A description of the constructed prototype and the results obtained are presented and discussed.
El artículo recoge parte de los resultados de un estudio realizado en localidades aisladas en la región de Aysén, Chile. Entre los aspectos abordados en dicho estudio, se consideró la relación entre factores sociodemográficos, el uso social de internet y percepción de aislamiento. Los resultados muestran una influencia diferencial de factores sociodemográficos (nivel de estudio, años de residencia, entre otros) en distintas dimensiones del aislamiento (vial, de lugares de trabajo, entre otros). Es decir, hay distintas variables asociadas a diferentes sentimientos de aislamiento. Por su parte, el uso social de internet, orientado a establecer lazos personales, generaría una sensación de “conectividad” que trascendería a otras esferas, de tal modo que aquellos que tienden a tener más contactos establecidos a través de Internet, tienden a no sentirse aislados en cualquiera de las dimensiones en que se desagrega la noción de aislamiento.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.